Results 101 to 110 of about 5,113,406 (258)

Unified Gas-kinetic Scheme with Multigrid Convergence for Rarefied Flow Study

, 2017
The unified gas kinetic scheme (UGKS) is a direct modeling method based on the gas dynamical model on the mesh size and time step scales. With the implementation of particle transport and collision in a time-dependent flux function, the UGKS can recover ...
Xu, Kun, Zhong, Chengwen, Zhu, Yajun
core   +2 more sources

Turbulence modeling for hypersonic flows [PDF]

Turbulence modeling for high speed compressible flows is described and discussed. Starting with the compressible Navier-Stokes equations, methods of statistical averaging are described by means of which the Reynolds-averaged Navier-Stokes equations are ...
Coakley, T. J., Marvin, J. G.
core   +1 more source

A Review of Flow Control Strategies for Supersonic/Hypersonic Fluid Dynamics

Aerospace Research Communications
Supersonic and hypersonic flows have gained considerable attention in the aerospace industry in recent years. Flow control is crucial for refining the quality of these high-speed flows and improving the performance and safety of fast aircraft. This paper
Shibo Lee, Yunlong Zhao, Jiaqi Luo, Jianfeng Zou, Jifa Zhang, Jifa Zhang, Yao Zheng, Yao Zheng, Yang Zhang, Yang Zhang   +9 more
doaj   +1 more source

Electrohydrodynamic Methods for Fluid Flow Control [PDF]

, 2015
No abstract ...
Kontis, Konstantinos, Russell, Andrew, Zare-Behtash, Hossein   +2 more
core  

Real Gas Effects on Receptivity to Roughness in Hypersonic Swept Blunt Flat-Plate Boundary Layers

Aerospace
Temperatures within the boundary layers of high-enthalpy hypersonic flows can soar to thousands or even tens of thousands of degrees, leading to significant real gas phenomena.
Yanxin Yin, Ruiyang Lu, Jianxin Liu, Zhangfeng Huang   +3 more
doaj   +1 more source

Comparison of prediction methods and studies of relaxation in hypersonic turbulent nozzle-wall boundary layers [PDF]

Turbulent boundary layer measurements on axisymmetric hypersonic nozzle ...
Bushnell, D. M., Feller, W. V., Harvey, W. D., Johnson, C. B.   +3 more
core   +1 more source

System controls challenges of hypersonic combined-cycle engine powered vehicles [PDF]

Hypersonic aircraft with air-breathing engines have been described as the most complex and challenging air/space vehicle designs ever attempted. This is particularly true for aircraft designed to accelerate to orbital velocities.
Ianculescu, George D., Morrison, Russell H.   +1 more
core   +1 more source

Numerical heat conduction in hydrodynamical models of colliding hypersonic flows

, 2010
Hydrodynamical models of colliding hypersonic flows are presented which explore the dependence of the resulting dynamics and the characteristics of the derived X-ray emission on numerical conduction and viscosity.
Agertz, Antokhin, Arthur, Banerjee, Berger, Bonito, Cantó, Cecil, Cha, Chevalier, Colella, Commerçon, Cooper, Cooper, Dale, Delamarter, Dwarkadas, Dyson, E. R. Parkin, Falle, Falle, Ferrand, Folini, Fragile, Fragile, Frenk, Fryxell, Fujita, Gregori, Gregori, Heitsch, Heitsch, Imamura, J. M. Pittard, Kaastra, Kitsionas, Klein, Lemaster, Mac Low, MacNeice, Marcolini, Matsuura, Meaburn, Melioli, Melioli, Mellema, Mewe, Mignone, Mignone, Myasnikov, Niklaus, Norman, Orlando, Orlando, Orlando, Parkin, Parkin, Parkin, Pittard, Pittard, Pittard, Pittard, Pittard, Pittard, Pittard, Pittard, Price, Quirk, Reyes-Iturbide, Robertson, Rockefeller, Rodríguez-González, Rosswog, Saitoh, Shang, Shin, Stevens, Stone, Strickland, Strickland, Strickland, Strickland, Sutherland, Tang, Tasker, Tenorio-Tagle, Tenorio-Tagle, Tenorio-Tagle, Teyssier, van Loo, van Loo, Vishniac, Vishniac, Wadsley, Walder, Walder, Walder, Walder, Westmoquette, Wünsch, Zhekov   +100 more
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Compendium of NASA Langley reports on hypersonic aerodynamics [PDF]

Reference is made to papers published by the Langley Research Center in various areas of hypersonic aerodynamics for the period 1950 to 1986. The research work was performed either in-house by the Center staff or by other personnel supported entirely or ...
Cary, Aubrey M., Lawson, Shirley W., Sabo, Frances E.   +2 more
core   +1 more source

BPANS: A Turbulence Model That Spans the Speed Range from Subsonic to Supersonic Flows

Aerospace
Unsteady turbulent flows are present in most engineering applications of practical relevance. In aeronautics, these applications span the speed range from subsonic to hypersonic flows.
Gabriel Nastac, Noah Schwalb, Abdelkader Frendi   +2 more
doaj   +1 more source