Conecte-se

Bibliografias temáticas / FST-Induced transition

Índice

Artigos de revistas

Literatura científica selecionada sobre o tema "FST-Induced transition"

Autor: Grafiati

Publicado: 7 de setembro de 2024

Crie uma referência precisa em APA, MLA, Chicago, Harvard, e outros estilos

Selecione um tipo de fonte:

Consulte a lista de atuais artigos, livros, teses, anais de congressos e outras fontes científicas relevantes para o tema "FST-Induced transition".

Ao lado de cada fonte na lista de referências, há um botão "Adicionar à bibliografia". Clique e geraremos automaticamente a citação bibliográfica do trabalho escolhido no estilo de citação de que você precisa: APA, MLA, Harvard, Chicago, Vancouver, etc.

Você também pode baixar o texto completo da publicação científica em formato .pdf e ler o resumo do trabalho online se estiver presente nos metadados.

Artigos de revistas sobre o assunto "FST-Induced transition"

1

Nakagawa, Kosuke, Takahiro Tsukahara, and Takahiro Ishida. "DNS Study on Turbulent Transition Induced by an Interaction between Freestream Turbulence and Cylindrical Roughness in Swept Flat-Plate Boundary Layer." Aerospace 10, no. 2 (2023): 128. http://dx.doi.org/10.3390/aerospace10020128.

Texto completo da fonte

Resumo:

Laminar-to-turbulent transition in a swept flat-plate boundary layer is caused by the breakdown of the crossflow vortex via high-frequency secondary instability and is promoted by the wall-surface roughness and the freestream turbulence (FST). Although the FST is characterized by its intensity and wavelength, it is not clear how the wavelength affects turbulent transitions and interacts with the roughness-induced transition. The wavelength of the FST depends on the wind tunnel or in-flight conditions, and its arbitrary control is practically difficult in experiments. By means of direct numeric

Estilos ABNT, Harvard, Vancouver, APA, etc.

2

He, S., and M. Seddighi. "Turbulence in transient channel flow." Journal of Fluid Mechanics 715 (January 9, 2013): 60–102. http://dx.doi.org/10.1017/jfm.2012.498.

Texto completo da fonte

Resumo:

AbstractDirect numerical simulations (DNS) are performed of a transient channel flow following a rapid increase of flow rate from an initially turbulent flow. It is shown that a low-Reynolds-number turbulent flow can undergo a process of transition that resembles the laminar–turbulent transition. In response to the rapid increase of flow rate, the flow does not progressively evolve from the initial turbulent structure to a new one, but undergoes a process involving three distinct phases (pre-transition, transition and fully turbulent) that are equivalent to the three regions of the boundary la

Estilos ABNT, Harvard, Vancouver, APA, etc.

3

Phani Kumar, P., A. C. Mandal, and J. Dey. "Effect of a mesh on boundary layer transitions induced by free-stream turbulence and an isolated roughness element." Journal of Fluid Mechanics 772 (May 7, 2015): 445–77. http://dx.doi.org/10.1017/jfm.2015.203.

Texto completo da fonte

Resumo:

Streamwise streaks, their lift-up and streak instability are integral to the bypass transition process. An experimental study has been carried out to find the effect of a mesh placed normal to the flow and at different wall-normal locations in the late stages of two transitional flows induced by free-stream turbulence (FST) and an isolated roughness element. The mesh causes an approximately 30 % reduction in the free-stream velocity, and mild acceleration, irrespective of its wall-normal location. Interestingly, when located near the wall, the mesh suppresses several transitional events leadin

Estilos ABNT, Harvard, Vancouver, APA, etc.

4

Han, Sang-Kap, Min-Kyung Joo, Jeon-Kyung Kim, Woonhee Jeung, Heerim Kang, and Dong-Hyun Kim. "Bifidobacteria-Fermented Red Ginseng and Its Constituents Ginsenoside Rd and Protopanaxatriol Alleviate Anxiety/Depression in Mice by the Amelioration of Gut Dysbiosis." Nutrients 12, no. 4 (2020): 901. http://dx.doi.org/10.3390/nu12040901.

Texto completo da fonte

Resumo:

Gut dysbiosis is closely connected with the outbreak of psychiatric disorders with colitis. Bifidobacteria-fermented red ginseng (fRG) increases the absorption of ginsenoside Rd and protopanxatriol into the blood in volunteers and mice. fRG and Rd alleviates 2,4,6-trinitrobenzenesulfonic acid-induced colitis in mice. Therefore, to understand the gut microbiota-mediated mechanism of fRG against anxiety/depression, we examined the effects of red ginseng (RG), fRG, ginsenoside Rd, and protopanaxatriol on the occurrence of anxiety/depression, colitis, and gut dysbiosis in mice. Mice with anxiety/d

Estilos ABNT, Harvard, Vancouver, APA, etc.

5

Stevenson, J. P. J., K. P. Nolan, and E. J. Walsh. "Particle image velocimetry measurements of induced separation at the leading edge of a plate." Journal of Fluid Mechanics 804 (September 9, 2016): 278–97. http://dx.doi.org/10.1017/jfm.2016.532.

Texto completo da fonte

Resumo:

The free shear layer that separates from the leading edge of a round-nosed plate has been studied under conditions of low (background) and elevated (grid-generated) free stream turbulence (FST) using high-fidelity particle image velocimetry. Transition occurs after separation in each case, followed by reattachment to the flat surface of the plate downstream. A bubble of reverse flow is thereby formed. First, we find that, under elevated (7 %) FST, the time-mean bubble is almost threefold shorter due to an accelerated transition of the shear layer. Quadrant analysis of the Reynolds stresses rev

Estilos ABNT, Harvard, Vancouver, APA, etc.

6

Vaid, Aditya, Nagabhushana Rao Vadlamani, Ananth Sivaramakrishnan Malathi, and Vikrant Gupta. "Dynamics of Bypass Transition Behind Roughness Element Subjected to Pulses of Free-Stream Turbulence." Physics of Fluids, October 10, 2022. http://dx.doi.org/10.1063/5.0120241.

Texto completo da fonte

Resumo:

This study explores the dynamics of bypass transition of a zero pressure gradient boundary layer transitioning under the combined influence of an isolated roughness element with pulses of free-stream turbulence (FST). We consider a hemispherical roughness element placed over a flat plate, while the pulses of FST are introduced at the inlet which is in contrast to continuous FST largely explored in the literature. For a fixed turbulence intensity and length scale, a series of eddy-resolving simulations are carried out to examine the effect of varying the pulsing frequency of FST. The flow behin

Estilos ABNT, Harvard, Vancouver, APA, etc.

7

Sengupta, Aditi, Nivedita Gupta, and Bryn Noel Ubald. "Separation-induced transition on a T106A blade under low and elevated free stream turbulence." Physics of Fluids 36, no. 2 (2024). http://dx.doi.org/10.1063/5.0189358.

Texto completo da fonte

Resumo:

The separation-induced transition on the suction surface of a T106A low pressure turbine blade is a complex phenomenon with implications for aerodynamic performance. In this numerical investigation, we explore an adverse pressure gradient-dominated flow subjected to varying levels of free stream excitation, as the underlying separation-induced transition is a critical factor in assessing blade profile loss. By comprehensively analyzing the effects of free stream turbulence (FST) on the transition process, we delve into the various mechanisms which govern the instabilities underlying bypass tra

Estilos ABNT, Harvard, Vancouver, APA, etc.

8

Mamidala, Santhosh B., André Weingärtner, and Jens H. M. Fransson. "A comparative study of experiments with numerical simulations of free-stream turbulence transition." Journal of Fluid Mechanics 951 (November 14, 2022). http://dx.doi.org/10.1017/jfm.2022.883.

Texto completo da fonte

Resumo:

To date, very few careful and direct comparisons between experiments and direct numerical simulations (DNS) have been published on free-stream turbulence (FST) induced boundary layer transition, whilst there exist numerous published works on the comparison of canonical turbulent boundary layers. The primary reason is that the former comparison is vastly more difficult to carry out simply because all known transition scenarios have large energy gradients and are extremely sensitive to surrounding conditions. This paper presents a detailed comparison between new experiments and available DNS dat

Estilos ABNT, Harvard, Vancouver, APA, etc.

9

Đurović, Kristina, Ardeshir Hanifi, Philipp Schlatter, Kenzo Sasaki, and Dan S. Henningson. "Direct numerical simulation of transition under free-stream turbulence and the influence of large integral length scales." Physics of Fluids 36, no. 7 (2024). http://dx.doi.org/10.1063/5.0207016.

Texto completo da fonte

Resumo:

Under the action of free-stream turbulence (FST), elongated streamwise streaky structures are generated inside the boundary layer, and their amplitude and wavelength are crucial for the transition onset. While turbulence intensity is strongly correlated with the transitional Reynolds number, characteristic length scales of the FST are often considered to have a slight impact on the transition location. However, a recent experiment by Fransson and Shahinfar [J. Fluid Mech. 899, A23 (2020)] shows significant effects of FST scales. They found that, for higher free-stream turbulence levels and lar

Estilos ABNT, Harvard, Vancouver, APA, etc.

10

Wang, Taiyang, Yaomin Zhao, John Leggett, and Richard Sandberg. "Direct Numerical Simulation of a High-Pressure Turbine Stage: Unsteady Boundary Layer Transition and the Resulting Flow Structures." Journal of Turbomachinery, September 27, 2023, 1–28. http://dx.doi.org/10.1115/1.4063510.

Texto completo da fonte

Resumo:

Abstract In the present study, we investigate the unsteady boundary layer transition based on the direct numerical simulation database of a high-pressure turbine (HPT) stage (Zhao and Sandberg, GT2021-58995), focusing on the transition mechanisms on the rotor blade, affected by the incoming periodic wakes and the background free-stream turbulence (FST). Based on the fully-resolved flow fields, we provide detailed analysis of the flow structures responsible for the transition, and two distinctive transition paths have been identified. The first path is the typical bypass transition via the inst

Estilos ABNT, Harvard, Vancouver, APA, etc.

Mais fontes

Oferecemos descontos em todos os planos premium para autores cujas obras estão incluídas em seleções literárias temáticas. Contate-nos para obter um código promocional único!