Увійти

Готові списки джерел за темами / Stratification de densité / Статті в журналах

Щоб переглянути інші типи публікацій з цієї теми, перейдіть за посиланням: Stratification de densité.

Статті в журналах з теми "Stratification de densité"

Автор: Grafiati

Опубліковано: 26 жовтня 2024

Оновлено: 31 липня 2025

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями

Оберіть тип джерела:

Ознайомтеся з топ-50 статей у журналах для дослідження на тему "Stratification de densité".

Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.

Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.

Переглядайте статті в журналах для різних дисциплін та оформлюйте правильно вашу бібліографію.

1

Bouterra, Mourad, Afif El Cafsi, Abdelfettah Belghith, and Patrick Le Quere. "Etude de l'effet de la stratification thermique sur la dispersion d'un polluant autour d'un obstacle." Journal of Renewable Energies 6, no. 1 (2003): 53–68. http://dx.doi.org/10.54966/jreen.v6i1.961.

Повний текст джерела

Анотація:

L'étude numérique bidimensionnelle de la dispersion d'un polluant autour d'un obstacle soumis à un écoulement turbulent a été effectuée par la technique de Simulation des Grosses Structures L.E.S. Dans la première partie de ce travail, nous avons étudié la dispersion de polluant ayant la même densité que l'air ambiant. On montre que la dispersion de polluant est exclusivement tributaire des mouvements turbulents présents, le mécanisme dominant de la dispersion étant la convection. Dans la seconde partie, on s'est intéressé à l'étude de l'effet de la stratification thermique sur les mécanismes

Стилі APA, Harvard, Vancouver, ISO та ін.

2

De Oliveira-Verger, Christelle, and Angelo Di Caterino. "Sémiotique et anthropologie: un retour vers le futur?" Entornos 30, no. 1 (2017): 15. http://dx.doi.org/10.25054/01247905.1417.

Повний текст джерела

Анотація:

Cet article vise à rappeler les relations et le dialogue qu’entretiennent sémiotique et anthropologie depuis la théorie développée par Lévi-Strauss jusqu’au dialogue instauré récemment avec Descola. Nous nous attacherons à montrer comment interagissent ces deux disciplines, jusqu’à apparaître parfois telles les deux faces d’une même médaille. De plus, nous constaterons dans cette étude que les réflexions de Lévi-Strauss, Descola mais également de Geertz restent fondamentales pour des raisons qui confirment le lien entre anthropologie et sémiotique. La «bonne distance» ethnographique et la «bon

Стилі APA, Harvard, Vancouver, ISO та ін.

3

Mjaess, G., L. Haddad, T. Jabbour, et al. "Affinage des seuils de densité du PSA pour la stratification de risque chez les patients présentant des lésions PI-RADS 3." Progrès en Urologie - FMC 34, no. 7 (2024): S89—S90. http://dx.doi.org/10.1016/j.fpurol.2024.07.125.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

4

Bournet, P. E., D. Dartus, B. Tassin, and B. Vincon-Leite. "Ondes internes du lac du Bourget: analyse des observations par des modèles linéaires." Revue des sciences de l'eau 9, no. 2 (2005): 247–66. http://dx.doi.org/10.7202/705252ar.

Повний текст джерела

Анотація:

Deux campagnes de mesures effectuées sur le lac du Bourget en période de faible stratification (avril et décembre 1994) ont mis en évidence des oscillations de la thermocline de période comprise entre deux et trois jours. Ces oscillations atteignent 40 m d'amplitude pour une profondeur maximale de 145 m. Elles ont probablement un impact sur les processus biologiques et physico-chimiques qui gouvernent l'évolution de la qualité des eaux du lac. L'analyse des données brutes des températures révèle une corrélation étroite entre la génération des ondes internes et les événements de vents important

Стилі APA, Harvard, Vancouver, ISO та ін.

5

Vincent, Grégoire, F. Caron, Damien Sabatier, and Lilian Blanc. "L'imagerie LiDAR montre que les forêts les plus hautes comportent des tiges plus élancées." BOIS & FORETS DES TROPIQUES 314, no. 314 (2012): 51. http://dx.doi.org/10.19182/bft2012.314.a20490.

Повний текст джерела

Анотація:

Une opération de balayage laser aéroporté à haute densité a permis de modéliser la hauteur du couvert forestier d'un site expérimental en forêt néotropicale (à Paracou en Guyane française). La hauteur des arbres individuels a été calculée par segmentation manuelle des houppiers sur le modèle numérique de canopée et extraction de la hauteur maximale locale du couvert forestier. Trois cent quatrevingt- seize estimations de hauteur d'arbres dominants ou émergents ont été mises en relation avec les données de terrain correspondantes pour les diamètres des tiges échantillonnées sur deux placettes d

Стилі APA, Harvard, Vancouver, ISO та ін.

6

Dessureault, Christian. "Parenté et stratification sociale dans une paroisse rurale de la vallée du Saint-Laurent au milieu du XIXe siècle1." Revue d'histoire de l'Amérique française 54, no. 3 (2004): 411–47. http://dx.doi.org/10.7202/005397ar.

Повний текст джерела

Анотація:

Résumé Les réseaux et les rapports de parenté représentent des vecteurs importants des recherches sur la société rurale du Québec. Cependant, nous n’avons encore aucune étude qui évalue de manière systématique l’importance des liens de parenté dans une paroisse rurale à un moment spécifique de l’histoire. Nous ne connaissons pas, de manière précise, la densité des liens familiaux entre les divers ménages d’une même paroisse, ni surtout le degré de variabilité de ces liens de parenté selon les familles, selon le genre et selon les groupes sociaux.Cette recherche vise à présenter une première me

Стилі APA, Harvard, Vancouver, ISO та ін.

7

Bosco, M., and P. Meunier. "Three-dimensional instabilities of a stratified cylinder wake." Journal of Fluid Mechanics 759 (October 20, 2014): 149–80. http://dx.doi.org/10.1017/jfm.2014.517.

Повний текст джерела

Анотація:

AbstractThis paper describes experimentally, numerically and theoretically how the three-dimensional instabilities of a cylinder wake are modified by the presence of a linear density stratification. The first part is focused on the case of a cylinder with a small tilt angle between the cylinder’s axis and the vertical. The classical mode A well-known for a homogeneous fluid is still present. It is more unstable for moderate stratifications but it is stabilized by a strong stratification. The second part treats the case of a moderate tilt angle. For moderate stratifications, a new unstable mode

Стилі APA, Harvard, Vancouver, ISO та ін.

8

Bessell, M. S., J. M. Brett, M. Scholz, Y. Takeda, R. Wehrse, and P. R. Wood. "Photospheres of Mira Variables." International Astronomical Union Colloquium 108 (1988): 187–88. http://dx.doi.org/10.1017/s0252921100093763.

Повний текст джерела

Анотація:

Mira variables form an important subgroup of the red giant stars which are typical representatives of stars showing burnt material at their surfaces. Since the photospheres of Miras are not in hydrostatic equilibrium but are characterized by spherically very extended density stratifications, their properties and emitted spectra differ substantially from those of non-Miras, and any attempts to analyse Mira spectra by means of conventional techniques must fail. Non-hydrostatic models are needed for analysis work.We computed a small set of exploratory M type (solar abundances) Mira model photosph

Стилі APA, Harvard, Vancouver, ISO та ін.

9

Lam, W. K., L. Chan, H. Hasini, and A. Ooi. "An Analysis of Two-Dimensional Stratified Gravity Current Flow using Open FOAM." International Journal of Engineering & Technology 7, no. 4.35 (2018): 589. http://dx.doi.org/10.14419/ijet.v7i4.35.22919.

Повний текст джерела

Анотація:

Direct numerical simulations (DNSs) of two-dimensional stratified gravity-current are simulated using OpenFOAM. Three different aspect ratio, h0/l0 (where h0 is the height of the dense fluid and l0 is the length of the dense fluid) are simulated with stratification ranging from 0 (homogenous ambient) to 0.2 with a constant Reynolds number (Re) of 4000. The stratificationof the ambient air is determined by the density difference between the bottom and the top walls of the channel (ρb- ρ0, where ρb is the density at the bottom of the domain and ρ0 is the density at the top). The magnitude of the

Стилі APA, Harvard, Vancouver, ISO та ін.

10

LAMB, KEVIN G. "A numerical investigation of solitary internal waves with trapped cores formed via shoaling." Journal of Fluid Mechanics 451 (January 25, 2002): 109–44. http://dx.doi.org/10.1017/s002211200100636x.

Повний текст джерела

Анотація:

The formation of solitary internal waves with trapped cores via shoaling is investigated numerically. For density fields for which the buoyancy frequency increases monotonically towards the surface, sufficiently large solitary waves break as they shoal and form solitary-like waves with trapped fluid cores. Properties of large-amplitude waves are shown to be sensitive to the near-surface stratification. For the monotonic stratifications considered, waves with open streamlines are limited in amplitude by the breaking limit (maximum horizontal velocity equals wave propagation speed). When an expo

Стилі APA, Harvard, Vancouver, ISO та ін.

11

GOYAL, N., H. PICHLER, and E. MEIBURG. "Variable-density miscible displacements in a vertical Hele-Shaw cell: linear stability." Journal of Fluid Mechanics 584 (July 25, 2007): 357–72. http://dx.doi.org/10.1017/s0022112007006428.

Повний текст джерела

Анотація:

A computational study based on the Stokes equations is conducted to investigate the effects of gravitational forces on miscible displacements in vertical Hele-Shaw cells. Nonlinear simulations provide the quasi-steady displacement fronts in the gap of the cell, whose stability to spanwise perturbations is subsequently examined by means of a linear stability analysis. The two-dimensional simulations indicate a marked thickening (thinning) and slowing down (speeding up) of the displacement front for flows stabilized (destabilized) by gravity. For the range investigated, the tip velocity is found

Стилі APA, Harvard, Vancouver, ISO та ін.

12

Ezhova, Ekaterina, Claudia Cenedese, and Luca Brandt. "Dynamics of a Turbulent Buoyant Plume in a Stratified Fluid: An Idealized Model of Subglacial Discharge in Greenland Fjords." Journal of Physical Oceanography 47, no. 10 (2017): 2611–30. http://dx.doi.org/10.1175/jpo-d-16-0259.1.

Повний текст джерела

Анотація:

AbstractThis study reports the results of large-eddy simulations of an axisymmetric turbulent buoyant plume in a stratified fluid. The configuration used is an idealized model of the plume generated by a subglacial discharge at the base of a tidewater glacier with an ambient stratification typical of Greenland fjords. The plume is discharged from a round source of various diameters and characteristic stratifications for summer and winter are considered. The classical theory for the integral parameters of a turbulent plume in a homogeneous fluid gives accurate predictions in the weakly stratifi

Стилі APA, Harvard, Vancouver, ISO та ін.

13

Shirane, M. "Stratification of Fabrics by Their Density." Sen'i Kikai Gakkaishi (Journal of the Textile Machinery Society of Japan) 38, no. 11 (1985): P482—P493,T201. http://dx.doi.org/10.4188/transjtmsj.38.11_p482.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

14

Shevtsova, V., D. Melnikov, and J. C. Legros. "Unstable density stratification in binary mixture." Progress in Computational Fluid Dynamics, An International Journal 6, no. 6 (2006): 348. http://dx.doi.org/10.1504/pcfd.2006.010776.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

15

Lee, Jongseok, Hyelim Lee, Hwajung Cha, Jun Seok, and In Cheol Jeong. "Refining the Martin–Hopkins method for estimating low-density lipoprotein cholesterol levels: Median versus optimal TG/VLDL-C ratio." PLOS One 20, no. 7 (2025): e0327169. https://doi.org/10.1371/journal.pone.0327169.

Повний текст джерела

Анотація:

Background Low-density lipoprotein cholesterol (LDL-C), a major modifiable risk factor for cardiovascular diseases, is typically calculated using the Friedewald formula when triglyceride (TG) levels are below 400 mg/dL. Recent studies have demonstrated the superior accuracy of the Martin–Hopkins method across diverse populations. While this method estimates very-low-density lipoprotein cholesterol (VLDL-C) using strata-specific median TG/VLDL-C ratios, its reliance on median statistics raises questions about whether these ratios are truly optimal. Objectives and methods This study evaluated th

Стилі APA, Harvard, Vancouver, ISO та ін.

16

Korre, Lydia, and Nicholas A. Featherstone. "On the Dynamics of Overshooting Convection in Spherical Shells: Effect of Density Stratification and Rotation." Astrophysical Journal 923, no. 1 (2021): 52. http://dx.doi.org/10.3847/1538-4357/ac2dea.

Повний текст джерела

Анотація:

Abstract Overshooting of turbulent motions from convective regions into adjacent stably stratified zones plays a significant role in stellar interior dynamics, as this process may lead to mixing of chemical species and contribute to the transport of angular momentum and magnetic fields. We present a series of fully nonlinear, three-dimensional (3D) anelastic simulations of overshooting convection in a spherical shell that are focused on the dependence of the overshooting dynamics on the density stratification and the rotation, both key ingredients in stars that however have not been studied sy

Стилі APA, Harvard, Vancouver, ISO та ін.

17

Boafo, Yaw, and Massalatchi Sani. "Status of the Sapo National Park elephant population and implications for conservation of elephants in Liberia." Pachyderm 50 (December 31, 2011): 18–25. http://dx.doi.org/10.69649/pachyderm.v50i.263.

Повний текст джерела

Анотація:

Dung counts are used to estimate abundance and distribution of elephants in tropical forests and give precise population estimates (Barnes, 2002). The most recent elephant population estimates for Sapo National Park date back to two decades ago. A survey was carried out in November and December 2009 using the standard line transect method (Buckland et al., 2001). A total of 44 km transects were surveyed and 82 elephant dung piles were observed in an estimated area of 630 km 2 where we found elephant signs. Prior to the survey, 222 dung piles were marked for decay study. The mean survival time

Стилі APA, Harvard, Vancouver, ISO та ін.

18

Neuhart, Dan H., George C. Greene, Dale R. Satran, and G. Thomas Holbrook. "Density stratification effects on wake vortex decay." Journal of Aircraft 23, no. 11 (1986): 820–24. http://dx.doi.org/10.2514/3.45387.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

19

RIAZ, AMIR, and ECKART MEIBURG. "Miscible, Porous Media Displacements with Density Stratification." Annals of the New York Academy of Sciences 1027, no. 1 (2004): 342–59. http://dx.doi.org/10.1196/annals.1324.029.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

20

Effler, Steven W., and Emmet M. Owens. "Density Stratification in Onondaga Lake: 1968–1994." Lake and Reservoir Management 12, no. 1 (1996): 25–33. http://dx.doi.org/10.1080/07438149609353994.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

21

Wright, Scott, and Gary Parker. "Density Stratification Effects in Sand-Bed Rivers." Journal of Hydraulic Engineering 130, no. 8 (2004): 783–95. http://dx.doi.org/10.1061/(asce)0733-9429(2004)130:8(783).

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

22

Sha, Huyun, and J. M. Vanden-Broeck. "Internal solitary waves with stratification in density." Journal of the Australian Mathematical Society. Series B. Applied Mathematics 38, no. 4 (1997): 563–80. http://dx.doi.org/10.1017/s0334270000000862.

Повний текст джерела

Анотація:

AbstractLong periodic waves propagating in a closed channel are considered. The fluid consists of two layers of constant densities separated by a layer in which the density varies continuously. The numerical results of Vanden-Broeck and Turner [8] are extended. It is shown that their solutions are particular members of a family of solutions. Solutions are selected by requiring that the streamfunction takes values on the upper and lower walls which are consistent with a uniform stream far upstream. The new solutions are qualitatively similar to those of Vanden-Broeck and Turner [8]. In particul

Стилі APA, Harvard, Vancouver, ISO та ін.

23

Vladimirov, V. A. "Analogy between density stratification and rotation effects." Journal of Applied Mechanics and Technical Physics 26, no. 3 (1985): 353–62. http://dx.doi.org/10.1007/bf00910369.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

24

Ivey, G. N., K. B. Winters, and J. R. Koseff. "Density Stratification, Turbulence, but How Much Mixing?" Annual Review of Fluid Mechanics 40, no. 1 (2008): 169–84. http://dx.doi.org/10.1146/annurev.fluid.39.050905.110314.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

25

Dixit, Harish N., and Rama Govindarajan. "Effect of density stratification on vortex merger." Physics of Fluids 25, no. 1 (2013): 016601. http://dx.doi.org/10.1063/1.4773445.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

26

Nandy, S., P. K. Joshi, and K. K. Das. "Forest canopy density stratification using biophysical modeling." Journal of the Indian Society of Remote Sensing 31, no. 4 (2003): 291–97. http://dx.doi.org/10.1007/bf03007349.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

27

Pham, Hieu T., and Sutanu Sarkar. "Ageostrophic Secondary Circulation at a Submesoscale Front and the Formation of Gravity Currents." Journal of Physical Oceanography 48, no. 10 (2018): 2507–29. http://dx.doi.org/10.1175/jpo-d-17-0271.1.

Повний текст джерела

Анотація:

AbstractLarge-eddy simulations are performed to investigate the development of the ageostrophic secondary circulation (ASC) and associated transport in a submesoscale front. Based on the observations in the northern Bay of Bengal and in the Pacific cold tongue, the model front has a large cross-front density difference that is partially compensated with lateral temperature and salinity gradients. Vertical stratification is varied in different cases to explore its effect on the ASC. The evolution of the ASC differs with stratification. When the front is unstratified, shear instabilities, which

Стилі APA, Harvard, Vancouver, ISO та ін.

28

BERON-VERA, F. J., and P. RIPA. "Free boundary effects on baroclinic instability." Journal of Fluid Mechanics 352 (December 10, 1997): 245–64. http://dx.doi.org/10.1017/s0022112097007222.

Повний текст джерела

Анотація:

The effects of a free boundary on the stability of a baroclinic parallel flow are investigated using a reduced-gravity model. The basic state has uniform density stratification and a parallel flow with uniform vertical shear in thermal-wind balance with the horizontal buoyancy gradient. A finite value of the velocity at the free (lower) boundary requires the interface to have a uniform slope in the direction transversal to that of the flow. Normal-mode perturbations with arbitrary vertical structure are studied in the limit of small Rossby number. This solution is restricted to neither a horiz

Стилі APA, Harvard, Vancouver, ISO та ін.

29

Wang, Xiuying, Wanli Cheng, Zihan Zhou, Dehe Yang, Jing Cui, and Feng Guo. "Stratification observed by the in situ plasma density measurements from the Swarm satellites." Annales Geophysicae 38, no. 2 (2020): 517–26. http://dx.doi.org/10.5194/angeo-38-517-2020.

Повний текст джерела

Анотація:

Abstract. The stratification phenomenon is investigated using the simultaneous in situ plasma density measurements obtained by the Swarm satellites orbiting at different altitudes above the F2 peak. For the first time, the continuous distribution morphology and the exact locations are obtained for the nighttime stratification, which show that the stratification events are centered at the EIA (equatorial ionization anomaly) trough and extend towards the two EIA crests, with the most significant part being located at the EIA trough. Another new discovery is the stratification in southern mid-lat

Стилі APA, Harvard, Vancouver, ISO та ін.

30

IWADE, Kotaro, and Masato AKAMATSU. "Disturbance of air-density stratification by magnetic force." Journal of the Visualization Society of Japan 29-1, no. 2 (2009): 1111. http://dx.doi.org/10.3154/jvs.29.1111.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

31

MIYATA, Yuichiro. "Periglacial involution-structure caused by reversed density stratification." Quaternary Research (Daiyonki-Kenkyu) 26, no. 4 (1988): 373–91. http://dx.doi.org/10.4116/jaqua.26.4_373.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

32

Davies, Geoffrey F. "Controls on density stratification in the early mantle." Geochemistry, Geophysics, Geosystems 8, no. 4 (2007): n/a. http://dx.doi.org/10.1029/2006gc001414.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

33

Renardy, Yuriko. "Viscosity and density stratification in vertical Poiseuille flow." Physics of Fluids 30, no. 6 (1987): 1638. http://dx.doi.org/10.1063/1.866228.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

34

TSUJIMURA, Shinji, Oaki IIDA, and Yasutaka NAGANO. "Coherent Structure in Geostrophic Flow under Density Stratification." Transactions of the Japan Society of Mechanical Engineers Series B 64, no. 626 (1998): 3430–37. http://dx.doi.org/10.1299/kikaib.64.3430.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

35

SMITH, RONALD. "Stratification-induced lateral dispersion of a density anomaly." Journal of Fluid Mechanics 353 (December 25, 1997): 197–203. http://dx.doi.org/10.1017/s0022112097007325.

Повний текст джерела

Анотація:

When a small amount of marked solute is released into a stratified fluid, there is lateral dispersion of the marked solute and a larger lateral dispersion of any density anomaly. The method of moments is used to calculate the two dispersion coefficients. The excess dispersion for the density is shown to be proportional to the fractional density decrease from the bed to the free surface and to the cube of the water depth, and inversely proportional to the vertical mixing for lateral momentum. For weak turbulent mixing the stratification-induced lateral dispersion for the density anomaly can be

Стилі APA, Harvard, Vancouver, ISO та ін.

36

CAMASSA, R., and R. TIRON. "Optimal two-layer approximation for continuous density stratification." Journal of Fluid Mechanics 669 (January 5, 2011): 32–54. http://dx.doi.org/10.1017/s0022112010004891.

Повний текст джерела

Анотація:

Two-layer fluids of finite depth under gravity are the simplest configuration capable of supporting internal wave motion. The extent to which such systems can be used to provide quantitative information on smoothly stratified fluids, in configurations relevant for geophysical applications, is analysed and a model of practical interest derived. The model is based on long-wave asymptotic expansions and on first-principle criteria for an optimal choice of effective two-layer parameters for the incompressible, smoothly stratified Euler equations. The accuracy of the model is extensively tested, vi

Стилі APA, Harvard, Vancouver, ISO та ін.

37

Effler, Steven W., Emmet M. Owens, and Keith A. Schimel. "Density stratification in ionically enriched Onondaga lake, U.S.A." Water, Air, & Soil Pollution 27, no. 3-4 (1986): 247–58. http://dx.doi.org/10.1007/bf00649406.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

38

Denis, Maryanov. "Development of a method for maintaining the performance of drilling fluids during transportation by Platform Supply Vessel." Technology Audit and Production Reserves 5, no. 2(61) (2021): 15–20. https://doi.org/10.15587/2706-5448.2021.239437.

Повний текст джерела

Анотація:

<em>The object of research is the process of transportation of drilling fluid used for lubrication and cooling of drilling equipment of offshore oil production platforms. The subject of the study is the stratification of the density of the drilling fluid along the height of the cargo tank in which it is transported. The technology of transportation of drilling fluid on the Platform Supply Vessel is considered. A problematic point in ensuring this process is that during the transportation of drilling fluids, due to the action of gravitational forces on organic and inorganic compounds in their v

Стилі APA, Harvard, Vancouver, ISO та ін.

39

CAMASSA, ROBERTO, CLAUDIA FALCON, JOYCE LIN, RICHARD M. McLAUGHLIN, and NICHOLAS MYKINS. "A first-principle predictive theory for a sphere falling through sharply stratified fluid at low Reynolds number." Journal of Fluid Mechanics 664 (October 12, 2010): 436–65. http://dx.doi.org/10.1017/s0022112010003800.

Повний текст джерела

Анотація:

A sphere exhibits a prolonged residence time when settling through a stable stratification of miscible fluids due to the deformation of the fluid-density field. Using a Green's function formulation, a first-principles numerically assisted theoretical model for the sphere–fluid coupled dynamics at low Reynolds number is derived. Predictions of the model, which uses no adjustable parameters, are compared with data from an experimental investigation with spheres of varying sizes and densities settling in stratified corn syrup. The velocity of the sphere as well as the deformation of the density f

Стилі APA, Harvard, Vancouver, ISO та ін.

40

Карьянский, Сергей Анатольевич, and Денис Николаевич Марьянов. "Adjustment of drilling slurry density during transportation by Platform Supply Vessels." Automation of ship technical facilities 27, no. 1 (2021): 52–62. http://dx.doi.org/10.31653/1819-3293-2021-1-27-52-62.

Повний текст джерела

Анотація:

Annotation – The issues of maintaining the drilling fluid density during its transportation from shore to the oil drilling platform by the Platform Supply Vessels were considered. The research was carried out on the vessel of 5650 deadweight tons, which made 2 ... 2.5 day voyages from port to drilling platform with possible waiting for direct approach to the platform for 1 ... 1.5 days. The drilling fluid was transported in four tanks of equal-size, arranged in pairs on each side of the vessel. It was found that during this period of time there is a latent stratification of drilling fluid alon

Стилі APA, Harvard, Vancouver, ISO та ін.

41

Haq, Fazal, Muzher Saleem, and M. Ijaz Khan. "Investigation of mixed convection magnetized Casson nanomaterial flow with activation energy and gyrotactic microorganisms." Journal of Physics Communications 5, no. 12 (2021): 125001. http://dx.doi.org/10.1088/2399-6528/ac3889.

Повний текст джерела

Анотація:

Abstract Present article addresses mixed convection magnetohydrodynamic Casson nanomaterial flow by stretchable cylinder. The effects of thermal, solutal and motile density stratifications at the boundary of the surface are accounted. Flow governing expressions are acquired considering aspects of permeability, thermal radiation, chemical reaction, viscous dissipation and activation energy. The obtained flow model is made dimensionless through transformations and then tackled by NDsolve code in Mathematica. Physical impacts of sundry variables on nanomaterial velocity, temperature distribution,

Стилі APA, Harvard, Vancouver, ISO та ін.

42

Dandekar, Rajat, Vaseem A. Shaik, and Arezoo M. Ardekani. "Swimming sheet in a density-stratified fluid." Journal of Fluid Mechanics 874 (July 4, 2019): 210–34. http://dx.doi.org/10.1017/jfm.2019.445.

Повний текст джерела

Анотація:

In this work, we theoretically investigate the swimming velocity of a Taylor swimming sheet immersed in a linearly density-stratified fluid. We use a regular perturbation expansion approach to estimate the swimming velocity up to second order in wave amplitude. We divide our analysis into two regimes of low ($\ll O(1)$) and finite Reynolds numbers. We use our solution to understand the effect of stratification on the swimming behaviour of organisms. We find that stratification significantly influences motility characteristics of the swimmer such as the swimming speed, hydrodynamic power expend

Стилі APA, Harvard, Vancouver, ISO та ін.

43

Мар’янов, Д. М. "IMPROVEMENT OF THE STORAGE SYSTEM AND CIRCULATION OF DRILLING SUSPENSION ON TYPE VESSELS PLATFORM SUPPLY VESSEL." SHIP POWER PLANTS 43, no. 1 (2021): 54–68. http://dx.doi.org/10.31653/smf343.2021.54-68.

Повний текст джерела

Анотація:

The system of storage and circulation of drilling fluid on Platform Supply Vessel class vessels is considered. It was experimentally established that for the transport time of 6 … 36 hours the stratification of the density of the drilling fluid by the depth of the cargo tank is 3.04 … 32.04 %. As a method that ensures minimal stratification of the density of the drilling fluid during its transportation, it is proposed to use additional X-shaped circulation of the drill slurry in the volume of adjacent cargo tanks. Studies have confirmed that the density stratification for the time period of 6

Стилі APA, Harvard, Vancouver, ISO та ін.

44

Zhu, Lei, Jiangchuan Sheng, and Liwen Pang. "The Role of Tide and Wind in Modulating Density Stratification in the Pearl River Estuary during the Dry Season." Journal of Marine Science and Engineering 12, no. 8 (2024): 1241. http://dx.doi.org/10.3390/jmse12081241.

Повний текст джерела

Анотація:

Density stratification plays a crucial role in estuarine hydrodynamics and material transport. In this study, we utilized a well-calibrated numerical model to investigate the stratification processes and underlying mechanisms in the dynamically wide Pearl River Estuary (PRE). In the upper estuary, longitudinal straining governs stratification, enhancing it during ebb tide and reducing it during flood tide. The Coriolis force becomes significant in the lower estuary due to the increased basin width, causing seaward freshwater to be confined to the West Shoal, where a pronounced transverse salin

Стилі APA, Harvard, Vancouver, ISO та ін.

45

INAGAKI, Yuki, and Oaki IIDA. "Homogenization of horizontally inhomogeneous turbulence under stable density stratification." Proceedings of Mechanical Engineering Congress, Japan 2020 (2020): S05431. http://dx.doi.org/10.1299/jsmemecj.2020.s05431.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

46

Boehrer, Bertram, Peter Herzsprung, Martin Schultze, and Frank J. Millero. "Calculating density of water in geochemical lake stratification models." Limnology and Oceanography: Methods 8, no. 11 (2010): 567–74. http://dx.doi.org/10.4319/lom.2010.8.0567.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

47

KITANO, Yoshikazu, Tomohito J. YAMADA, and Norihiro IZUMI. "The Development of disturbance on the atmospheric density stratification." Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 68, no. 5 (2012): I_205—I_210. http://dx.doi.org/10.2208/jscejer.68.i_205.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

48

Oh, Chan-Sung, and Jung-Hoon Choi. "Consideration on Changes of Density Stratification in Saemangeum Reservoir." Journal of the Korean Society for Marine Environment & Energy 18, no. 2 (2015): 81–93. http://dx.doi.org/10.7846/jkosmee.2015.18.2.81.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

49

MICHIOKU, Kohji. "Density Stratification and Thermal Cycle in Temperature Zone Lakes." PROCEEDINGS OF HYDRAULIC ENGINEERING 37 (1993): 337–42. http://dx.doi.org/10.2208/prohe.37.337.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

50

Inagaki, Yuki, and Oaki Iida. "Homogenization of horizontally inhomogeneous turbulence under stable density stratification." Proceedings of Conference of Tokai Branch 2020.69 (2020): 511. http://dx.doi.org/10.1299/jsmetokai.2020.69.511.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

Ми пропонуємо знижки на всі преміум-плани для авторів, чиї праці увійшли до тематичних добірок літератури. Зв'яжіться з нами, щоб отримати унікальний промокод!