Добірка наукової літератури з теми "Vortex instability"
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Статті в журналах з теми "Vortex instability"
Koshel, Konstantin V., and Eugene A. Ryzhov. "Parametric resonance in the dynamics of an elliptic vortex in a periodically strained environment." Nonlinear Processes in Geophysics 24, no. 1 (January 12, 2017): 1–8. http://dx.doi.org/10.5194/npg-24-1-2017.
Повний текст джерелаMacKay, R. S. "Instability of vortex streets." Dynamics and Stability of Systems 2, no. 1 (January 1987): 55–71. http://dx.doi.org/10.1080/02681118708806027.
Повний текст джерелаAcheson, D. J. "Instability of vortex leapfrogging." European Journal of Physics 21, no. 3 (May 1, 2000): 269–73. http://dx.doi.org/10.1088/0143-0807/21/3/310.
Повний текст джерелаMarxen, Olaf, Matthias Lang, and Ulrich Rist. "Vortex formation and vortex breakup in a laminar separation bubble." Journal of Fluid Mechanics 728 (July 1, 2013): 58–90. http://dx.doi.org/10.1017/jfm.2013.222.
Повний текст джерелаSCHAEFFER, NATHANAËL, and STÉPHANE LE DIZÈS. "Nonlinear dynamics of the elliptic instability." Journal of Fluid Mechanics 646 (March 8, 2010): 471–80. http://dx.doi.org/10.1017/s002211200999351x.
Повний текст джерелаLEWEKE, T., and C. H. K. WILLIAMSON. "Cooperative elliptic instability of a vortex pair." Journal of Fluid Mechanics 360 (April 10, 1998): 85–119. http://dx.doi.org/10.1017/s0022112097008331.
Повний текст джерелаBarnes, C. J., M. R. Visbal, and P. G. Huang. "On the effects of vertical offset and core structure in streamwise-oriented vortex–wing interactions." Journal of Fluid Mechanics 799 (June 21, 2016): 128–58. http://dx.doi.org/10.1017/jfm.2016.320.
Повний текст джерелаMounce, A. M., S. Oh, S. Mukhopadhyay, W. P. Halperin, A. P. Reyes, P. L. Kuhns, K. Fujita, M. Ishikado, and S. Uchida. "Charge-induced vortex lattice instability." Nature Physics 7, no. 2 (November 28, 2010): 125–28. http://dx.doi.org/10.1038/nphys1835.
Повний текст джерелаTophøj, Laust, and Hassan Aref. "Instability of vortex pair leapfrogging." Physics of Fluids 25, no. 1 (January 2013): 014107. http://dx.doi.org/10.1063/1.4774333.
Повний текст джерелаSukhanovskii, A., A. Evgrafova, and E. Popova. "Instability of cyclonic convective vortex." IOP Conference Series: Materials Science and Engineering 208 (June 2017): 012040. http://dx.doi.org/10.1088/1757-899x/208/1/012040.
Повний текст джерелаДисертації з теми "Vortex instability"
Mao, Xuerui. "Vortex instability and transient growth." Thesis, Imperial College London, 2010. http://hdl.handle.net/10044/1/6442.
Повний текст джерелаAltay, Hurrem Murat. "Vortex driven flame dynamics and combustion instability." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/32379.
Повний текст джерелаIncludes bibliographical references (leaves 87-93).
Combustion instability in premixed combustors mostly arises due to the coupling between heat release rate dynamics and system acoustics. It is crucial to understand the instability mechanisms to design reliable, high efficiency, low emission gas turbine combustors. In this thesis, elementary processes acting as a source of unsteady heat release rate are described. These elementary processes are acoustic wave-flame interactions, flame-vortex interactions, equivalence ratio fluctuations, flame-wall interactions and the unsteady stretch rate. To investigate the flame- vortex interaction mechanism, a parametric study is performed in single and double expansion dump combustors. 2-D simulations are performed using the random vortex method combined with thin flame model of premixed combustion. The inlet velocity of the combustor is forced sinusoidally at various amplitudes and frequencies, and the heat release rate response is evaluated. It is shown that the heat release rate dynamics are governed by the cyclical formation of a large wake vortex and its interaction with the flame. Maximum heat release rate in a cycle is reached a short time after the breakup of the vortex, which causes rapid burning of the reactants trapped within the structure. The geometry and operating conditions of the combustor control the mechanism by which the vortex breakup is initiated. For short cavities, the impingement of the large wake vortex onto the forward facing step is responsible from the vortex breakup.
(cont.) On the other hand, in long cavities, the vortex breakup is initiated as the wake vortex impinges on the upper cavity wall in single expansion dump combustor, or the vortex forming in the other half of the combustor in double expansion dump combustor. Furthermore, the effect of the air injection in the cross stream direction close to the dump plane on equivalence ratio is investigated. It is shown experimentally that high amplitude pressure oscillation in the combustor during unstable operation causes fluctuation in the injected jet velocity. The oscillatory jet velocity affects the incoming equivalence ratio depending on the momentum ratio of the jet to the primary stream. A critical momentum ratio is defined at which the amplitude of the equivalence ratio oscillations reaches a maximum.
by Hurrem Murat Altay.
S.M.
Rostami, Masoud. "Dynamical influence of diabatic processes upon developing instabilities of Earth and planetary jets and vortices." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066186.
Повний текст джерелаThe thesis is devoted to understanding dynamical influence of diabatic effects, like moist convection, on instabilities of vortices in Earth and planetary atmospheres. A vertically integrated atmospheric model with relaxational parameterisation of phase transitions and related heat release, and with convective fluxes included in mass and momentum equations, the moist-convective rotating shallow water model, was used for this purpose. The previous version of the model was improved to include precipitable water and its vaporisation and entrainment. The approach consists in 1)detailed stability analysis of idealised, or extracted from the data, vortex profiles, 2)study of nonlinear saturation of the instabilities with the help of finite-volume high-resolution numerical code. The main results of the thesis are: 1. Demonstration and quantification of strong influence of moist effects upon instabilities of synoptic vortices, including cyclone-anticyclone asymmetry of mid-latitude vortices of weak intensity, and intensification of tropical-cyclone like vortices with formation of typical cloud patterns. 2. Explanation of the dynamical origin of the Saturn's North Polar hexagon, and of the lack of similar structure at the South Pole, in terms of instability of the coupled polar vortex and circumpolar jet, and their nonlinear saturation.3. Explanation of the observed structure of Mars' winter polar vortex in terms of instability of the latter, and its saturation in the presence of radiative heating/cooling and CO2 deposition (gas-solid phase transition). A new simple parameterisation of the latter process, including the influence of deposition nuclei, was developed in the thesis
Amirante, Daria. "A numerical study of instability and vortex breakdown of swirling flow." Thesis, University of Southampton, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.485518.
Повний текст джерелаQuaranta, Hugo. "Instabilities in a swirling rotor wake." Thesis, Aix-Marseille, 2017. http://www.theses.fr/2017AIXM0052.
Повний текст джерелаThis work studies the instabilities associated with the wake of a rotor. These devices are used in many applications such as energy harvesting or propulsion,and their optimisation is crucial for both industry and the environment. The wakebehind a rotor is broadly defined as a system of interlaced helical vortices, whose dynamics governs the transition from the near-wake to the far-wake regime. In our first study, we investigate the wake behind different small-scale rotors in their design operating condition. We use the resulting flows in a subsequent linear stability analysis, aiming at predicting long-wavelength instability modes in the helical vortex. We find that the theoretical prediction of the modes growth-rates matches our experimental measurements. We also show that the dynamics of helical vortex filaments can be predicted from simple two-dimensional theory. In more critical flow configurations, instabilities are suspected to promote the transition to hazardous regimes such as the so called Vortex-Ring State, characterised by large-scale recirculating structures.The second part of this work is thus dedicated to the spatio-temporal evolution of localised perturbations in the rotor plane, and their potential tendency to propagate upstream in the flow
Pang, Bin. "Active suppression of vortex-driven combustion instability using controlled liquid-fuel injection." College Park, Md. : University of Maryland, 2005. http://hdl.handle.net/1903/2958.
Повний текст джерелаThesis research directed by: Aerospace Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
Waleffe, Fabian. "The 3D instability of a strained vortex and its relation to turbulence." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/14221.
Повний текст джерелаMEN'SHOV, Igor, and Yoshiaki NAKAMURA. "On Instability of Acoustic Waves Propagating in Stratified Vortical Flows." The Japan Society of Mechanical Engineers, 2002. http://hdl.handle.net/2237/9091.
Повний текст джерелаKhan, Md Abdul Hakim. "Singularity analysis by summing power series." Thesis, University of Bristol, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368391.
Повний текст джерелаKim, Inchul. "Numerical study of the onset of instability in the flow past a sphere." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184809.
Повний текст джерелаКниги з теми "Vortex instability"
Hall, Philip. On the Gortler vortex instability mechanism at hypersonic speeds. Hampton, Va: ICASE, 1989.
Знайти повний текст джерелаHall, Philip. On the Goertler vortex instability mechanism at hypersonic speeds. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1989.
Знайти повний текст джерелаOtto, S. R. On the secondary instability of the most dangerous Gortler vortex. Hampton, Va: Institute for Computer Applications in Science and Engineering, 1993.
Знайти повний текст джерелаP, Bassom Andrew, and Institute for Computer Applications in Science and Engineering., eds. On the instability of Görtler vortices to nonlinear travelling waves. Hampton, Va: Institute for Computer Applications in Science and Engineering, NASA Langley Research Center, 1990.
Знайти повний текст джерелаOtto, S. R. On the secondary instability of the most dangerous Go rtler vortex. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1993.
Знайти повний текст джерелаDenier, James P. The effect of wall compliance on the Gortler vortex instability. Hampton, Va: Institute for Computer Applications in Science and Engineering, 1990.
Знайти повний текст джерелаHall, Philip. The inviscid secondary instability of fully nonlinear longitudinal vortex structures in growing boundary layers. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1990.
Знайти повний текст джерелаMichalke, Alfons. A note on the instability of a vortex sheet leaving a semi-infinite plate. Koln: DFVLR, 1987.
Знайти повний текст джерелаArbic, Brian K. Generation of mid-ocean eddies: The local baroclinic instability hypothesis. Cambridge, Mass: Massachusetts Institute of Technology, 2000.
Знайти повний текст джерелаArbic, Brian K. Generation of mid-ocean eddies: The local baroclinic instability hypothesis. Cambridge, Mass: Massachusetts Institute of Technology, 2000.
Знайти повний текст джерелаЧастини книг з теми "Vortex instability"
Tang, S. J., F. G. Zhuang, and T. D. Hsing. "The Nonlinear Stability of Vortex Flows and Vortex Breakdown." In Nonlinear Instability of Nonparallel Flows, 300–309. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-85084-4_25.
Повний текст джерелаDrazin, P. G., W. H. H. Banks, and M. B. Zaturska. "The Instability of Long’s Vortex." In Nonlinear Instability of Nonparallel Flows, 281–89. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-85084-4_23.
Повний текст джерелаBerger, Stanley A. "Ellipticity in the Vortex Breakdown Problem." In Instability, Transition, and Turbulence, 96–106. New York, NY: Springer New York, 1992. http://dx.doi.org/10.1007/978-1-4612-2956-8_11.
Повний текст джерелаFisher, L. M., P. E. Goa, M. Baziljevich, T. H. Johansen, A. L. Rakhmanov, and V. A. Yampol’skii. "The Hydrodynamic Instability in the Vortex-Anti-Vortex System." In New Trends in Superconductivity, 385–93. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0544-9_34.
Повний текст джерелаSinger, Bart A. "The Formation and Growth of a Hairpin Vortex." In Instability, Transition, and Turbulence, 367–76. New York, NY: Springer New York, 1992. http://dx.doi.org/10.1007/978-1-4612-2956-8_36.
Повний текст джерелаBernard, Peter S., Siva Thangam, and Charles G. Speziale. "The Role of Vortex Stretching In Turbulence Modeling." In Instability, Transition, and Turbulence, 563–74. New York, NY: Springer New York, 1992. http://dx.doi.org/10.1007/978-1-4612-2956-8_54.
Повний текст джерелаAnderson, Christopher, Claude Greengard, and Michael Henderson. "Instability, vortex shedding, and numerical convergence." In Lecture Notes in Mathematics, 42–55. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/bfb0089770.
Повний текст джерелаEloy, C., and S. Le Dizès. "Instability of Non-Axisymmetric Vortex Flows." In Fluid Mechanics and Its Applications, 357–60. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5118-4_88.
Повний текст джерелаWalton, A. G., R. I. Bowles, and F. T. Smith. "Vortex-Wave Interaction in a Strong Adverse Pressure Gradient." In Instability, Transition, and Turbulence, 79–91. New York, NY: Springer New York, 1992. http://dx.doi.org/10.1007/978-1-4612-2956-8_9.
Повний текст джерелаMeunier, Patrice, and Thomas Leweke. "Merging and Three-dimensional Instability in a Corotating Vortex Pair." In Vortex Structure and Dynamics, 241–51. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/3-540-44535-8_15.
Повний текст джерелаТези доповідей конференцій з теми "Vortex instability"
Rebours, Renaud, and Kamran Rokhsaz. "Flap Sizing for Wake Vortex Instability." In General Avaition Technology Conference & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2000. http://dx.doi.org/10.4271/2000-01-1693.
Повний текст джерелаAbu-Irshaid, Esam, Joseph Majdalani, and Gregoire Casalis. "Hydrodynamic Instability of the Bidirectional Vortex." In 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2005. http://dx.doi.org/10.2514/6.2005-4531.
Повний текст джерелаGallaire, Francois, and Philippe Meliga. "Global instability of helical vortex breakdown." In 6th AIAA Theoretical Fluid Mechanics Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2011. http://dx.doi.org/10.2514/6.2011-3604.
Повний текст джерелаZhu, Fanglin, Xieyuan Yin, and Jiezhi Wu. "Short-wave instability of strained swirling vortex." In 37th Aerospace Sciences Meeting and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1999. http://dx.doi.org/10.2514/6.1999-139.
Повний текст джерелаYu, Ken H., K. J. Wilson, and Klaus C. Schadow. "Active Instability Suppression Using Vortex-Droplet Interaction." In ICLASS 97. Connecticut: Begellhouse, 2023. http://dx.doi.org/10.1615/iclass-97.460.
Повний текст джерелаZUKOSKI, E. "Combustion instability sustained by unsteady vortex combustion." In 21st Joint Propulsion Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1985. http://dx.doi.org/10.2514/6.1985-1248.
Повний текст джерелаWang, Junrong, Qi Xiao, Hanbing Ke, Xu Hu, Shaodan Li, and Zhiguo Wei. "Numerical Simulation of Flow Instability in Vortex Diodes." In 2017 25th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icone25-66512.
Повний текст джерелаRuprecht, Albert, Ralf Neubauer, and Thomas Helmrich. "Simulation of Vortex Instability in a Pipe Trifurcation." In ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/fedsm2003-45438.
Повний текст джерелаXu, Guoliang, Gang Liu, and Xiong Jiang. "The nonlinear instability of the supersonic crossflow vortex." In 44th AIAA Fluid Dynamics Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2014. http://dx.doi.org/10.2514/6.2014-2637.
Повний текст джерелаHussain, Mukkarum, Shamoon Jamshed, and Maryam Ozair. "Simulations and Analysis of Vortex Driven Combustion Instability." In 2022 19th International Bhurban Conference on Applied Sciences and Technology (IBCAST). IEEE, 2022. http://dx.doi.org/10.1109/ibcast54850.2022.9990249.
Повний текст джерелаЗвіти організацій з теми "Vortex instability"
Wang, Hong Yun. A study of short wave instability on vortex filaments. Office of Scientific and Technical Information (OSTI), December 1996. http://dx.doi.org/10.2172/451206.
Повний текст джерелаGordnier, Raymond E. Computation of a Kelvin-Helmholtz Instability for Delta Wing Vortex Flows. Fort Belvoir, VA: Defense Technical Information Center, November 1991. http://dx.doi.org/10.21236/ada244320.
Повний текст джерела