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Relevant bibliographies by topics / Favourable pressure gradient

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Journal articles

Academic literature on the topic 'Favourable pressure gradient'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

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Journal articles on the topic "Favourable pressure gradient"

1

CHERNYSHENKO, S. I., B. GALLETTI, A. IOLLO, and LUCA ZANNETTI. "Trapped vortices and a favourable pressure gradient." Journal of Fluid Mechanics 482 (May 10, 2003): 235–55. http://dx.doi.org/10.1017/s0022112003004026.

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2

Volchkov, E. P., M. S. Makarov, and A. Yu Sakhnov. "Boundary layer with asymptotic favourable pressure gradient." International Journal of Heat and Mass Transfer 53, no. 13-14 (2010): 2837–43. http://dx.doi.org/10.1016/j.ijheatmasstransfer.2010.02.014.

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3

CAL, RAÚL BAYOÁN, BRIAN BRZEK, T. GUNNAR JOHANSSON, and LUCIANO CASTILLO. "The rough favourable pressure gradient turbulent boundary layer." Journal of Fluid Mechanics 641 (November 25, 2009): 129–55. http://dx.doi.org/10.1017/s0022112009991352.

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Laser Doppler anemometry measurements of the mean velocity and Reynolds stresses are carried out for a rough-surface favourable pressure gradient turbulent boundary layer. The experimental data is compared with smooth favourable pressure gradient and rough zero-pressure gradient data. The velocity and Reynolds stress profiles are normalized using various scalings such as the friction velocity and free stream velocity. In the velocity profiles, the effects of roughness are removed when using the friction velocity. The effects of pressure gradient are not absorbed. When using the free stream vel

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4

Cohen, Elie, and Xavier Gloerfelt. "Influence of pressure gradients on wall pressure beneath a turbulent boundary layer." Journal of Fluid Mechanics 838 (January 22, 2018): 715–58. http://dx.doi.org/10.1017/jfm.2017.898.

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This study investigates the effects of a pressure gradient on the wall pressure beneath equilibrium turbulent boundary layers. Excitation of the walls of a vehicle by turbulent boundary layers indeed constitutes a major source of interior noise and it is necessary to take into account the presence of a pressure gradient to represent the effect of the curvature of the walls. With this aim, large-eddy simulations of turbulent boundary layers in the presence of both mild adverse and mild favourable pressure gradients are carried out by solving the compressible Navier–Stokes equations. This method

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5

Tichenor, N. R., R. A. Humble, and R. D. W. Bowersox. "Response of a hypersonic turbulent boundary layer to favourable pressure gradients." Journal of Fluid Mechanics 722 (March 28, 2013): 187–213. http://dx.doi.org/10.1017/jfm.2013.89.

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AbstractThe role of streamline curvature-driven favourable pressure gradients in modifying the turbulence structure of a Mach 4.9, high-Reynolds-number (${\mathit{Re}}_{\theta } = 43\hspace{0.167em} 000$) boundary layer is examined. Three pressure gradient cases ($\beta = (\mathrm{d} p/ \mathrm{d} x)({\delta }^{\ast } / {\tau }_{w} )= 0. 07, - 0. 3$ and $- 1. 0$) are characterized via particle image velocimetry. The expected stabilizing trends in the Reynolds stresses are observed, with a sign reversal in the Reynolds shear stress in the outer part of the boundary layer for the strongest favou

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6

VEYNANTE, DENIS, and THIERRY POINSOT. "Effects of pressure gradients on turbulent premixed flames." Journal of Fluid Mechanics 353 (December 25, 1997): 83–114. http://dx.doi.org/10.1017/s0022112097007556.

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In most practical situations, turbulent premixed flames are ducted and, accordingly, subjected to externally imposed pressure gradients. These pressure gradients may induce strong modifications of the turbulent flame structure because of buoyancy effects between heavy cold fresh and light hot burnt gases. In the present work, the influence of a constant acceleration, inducing large pressure gradients, on a premixed turbulent flame is studied using direct numerical simulations.A favourable pressure gradient, i.e. a pressure decrease from unburnt to burnt gases, is found to decrease the flame wr

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7

METZGER, M., A. LYONS, and P. FIFE. "Mean momentum balance in moderately favourable pressure gradient turbulent boundary layers." Journal of Fluid Mechanics 617 (December 25, 2008): 107–40. http://dx.doi.org/10.1017/s0022112008003637.

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Moderately favourable pressure gradient turbulent boundary layers are investigated within a theoretical framework based on the unintegrated two-dimensional mean momentum equation. The present theory stems from an observed exchange of balance between terms in the mean momentum equation across different regions of the boundary layer. This exchange of balance leads to the identification of distinct physical layers, unambiguously defined by the predominant mean dynamics active in each layer. Scaling domains congruent with the physical layers are obtained from a multi-scale analysis of the mean mom

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8

Escudier, M. P., A. Ramadan, and M. W. Johnson. "Response of a skewed turbulent boundary layer to favourable pressure gradient." Experiments in Fluids 30, no. 6 (2001): 657–71. http://dx.doi.org/10.1007/s003480000247.

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9

PRALITS, JAN O., A. HANIFI, and D. S. HENNINGSON. "Adjoint-based optimization of steady suction for disturbance control in incompressible flows." Journal of Fluid Mechanics 467 (September 24, 2002): 129–61. http://dx.doi.org/10.1017/s0022112002001301.

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The optimal distribution of steady suction needed to control the growth of single or multiple disturbances in quasi-three-dimensional incompressible boundary layers on a flat plate is investigated. The evolution of disturbances is analysed in the framework of the parabolized stability equations (PSE). A gradient-based optimization procedure is used and the gradients are evaluated using the adjoint of the parabolized stability equations (APSE) and the adjoint of the boundary layer equations (ABLE). The accuracy of the gradient is increased by introducing a stabilization procedure for the PSE. R

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10

Harun, Zambri, Jason P. Monty, Romain Mathis, and Ivan Marusic. "Pressure gradient effects on the large-scale structure of turbulent boundary layers." Journal of Fluid Mechanics 715 (January 9, 2013): 477–98. http://dx.doi.org/10.1017/jfm.2012.531.

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AbstractResearch into high-Reynolds-number turbulent boundary layers in recent years has brought about a renewed interest in the larger-scale structures. It is now known that these structures emerge more prominently in the outer region not only due to increased Reynolds number (Metzger & Klewicki, Phys. Fluids, vol. 13(3), 2001, pp. 692–701; Hutchins & Marusic, J. Fluid Mech., vol. 579, 2007, pp. 1–28), but also when a boundary layer is exposed to an adverse pressure gradient (Bradshaw, J. Fluid Mech., vol. 29, 1967, pp. 625–645; Lee & Sung, J. Fluid Mech., vol. 639, 2009, pp. 101–

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