Results 71 to 80 of about 130,525 (161)

Heat transfer on a flat plate in helium at Mach numbers 67.3 and 87.6 and in hypersonic corner flow with air at Mach number of 19 [PDF]

Hypersonic heat transfer rates on flat plates in helium and in corner flow region with ...
Nagamatsu, H. T., Pettit, W. T., Sheer, R. E., Jr.   +2 more
core   +1 more source

Impact of Ion Mobility on Electron Density and Temperature in Hypersonic Flows [PDF]

arXiv
This study provides the first comprehensive analysis of how ion mobility affects electron density and temperature in hypersonic flows. We compare two ion mobility models: one derived from Gupta-Yos cross-sections, and the other from swarm drift velocity experiments.
arxiv  

Analysis of the project fire re-entry package flow field final technical report [PDF]

Theoretical prediction of state of gas in flow field surrounding Apollo type vehicle in reentry at hypersonic ...
Byron, S. R., Foster, R. M., Hoglund, R. F., Holt, M., Kuby, W. C.   +4 more
core   +1 more source

Perspectives on hypersonic viscous and nonequilibrium flow research [PDF]

An attempt is made to reflect on current focuses in certain areas of hypersonic flow research by examining recent works and their issues. Aspects of viscous interaction, flow instability, and nonequilibrium aerothermodynamics pertaining to theoretical ...
Cheng, H. K.
core   +1 more source

Hypersonic flow of air past a circular cylinder with non-equilibrium oxygen dissociation including dissociation of the free stream [PDF]

Hypersonic inviscid flow past a circular cylinder with nonequilibrium oxygen dissociation and dissociation of the free ...
Hermann, R., Thoenes, J.
core   +1 more source

Transition in Hypersonic Boundary Layers: Role of Dilatational Waves

, 2015
Transition and turbulence production in a hypersonic boundary layer is investigated in a Mach 6 quiet wind tunnel using Rayleigh-scattering visualization, fast-response pressure measurements, and particle image velocimetry.
Chen, Shiyi, Chen, Xi, Gad-el-Hak, Mohamed, Lee, Cunbiao, Wu, Jiezhi, Yuan, Huijing, Zhang, Chuanhong, Zhu, Yiding   +7 more
core   +2 more sources

Data-Driven Turbulence Modeling Approach for Cold-Wall Hypersonic Boundary Layers [PDF]

arXiv
Wall-cooling effect in hypersonic boundary layers can significantly alter the near-wall turbulence behavior, which is not accurately modeled by traditional RANS turbulence models. To address this shortcoming, this paper presents a turbulence modeling approach for hypersonic flows with cold-wall conditions using an iterative ensemble Kalman method ...
arxiv  

Shock tunnel studies of scramjet phenomena, supplement 5 [PDF]

A series of reports are presented on SCRAMjet studies, shock tunnel studies, and expansion tube studies. The SCRAMjet studies include: (1) Investigation of a Supersonic Combustion Layer; (2) Wall Injected SCRAMjet Experiments; (3) Supersonic Combustion ...
Akman, N., Allen, G. A., Brescianini, C. P., Casey, R., Jacobs, P. A., Morgan, R. G., Skinner, K., Stalker, R. J., Ward, N. R., Wendt, M.   +9 more
core   +1 more source

A modified method of integral relations approach to the blunt-body equilibrium air flow field, including comparisons with inverse solutions [PDF]

Numerical calculation of inviscid adiabatic flow field around blunt bodies at hypersonic ...
Garrett, L. B., Perkins, J. N., Suttles, J. T.   +2 more
core   +1 more source

Hypersonic turbulent boundary layer studies at cold wall conditions [PDF]

Skin friction and heat transfer rate in hypersonic turbulent boundary layer flow over flat plates and cold nozzle ...
Wallace, J. E.
core   +1 more source