Some Effects of Free-Stream Turbulence and the Presence of the Ground on the Flow Around Bluff Bodies

1978 ◽  
pp. 95-127 ◽  
Author(s):  
P. W. Bearman
Keyword(s):  
Free Stream ◽  
Bluff Bodies ◽  
Free Stream Turbulence

Effect of free stream turbulence on the flow around bluff bodies

1983 ◽  
Vol 20 (2-3) ◽  
pp. 97-123 ◽  
Author(s):  
P.W. Bearman ◽  
T. Morel
Keyword(s):  
Free Stream ◽  
Bluff Bodies ◽  
Free Stream Turbulence

Transport in the near aerodynamic wakes of flat plates

1982 ◽  
Vol 120 ◽  
pp. 185-197 ◽  
Author(s):  
A. S. M. Maclennan ◽  
J. H. Vincent
Keyword(s):  
Free Stream ◽  
Bluff Bodies ◽  
Wake Region ◽  
Small Particles ◽  
Flat Plates ◽  
Main Attention ◽  
Near Wake ◽  
Free Stream Turbulence ◽  
Vortex Shedding Frequency ◽  
Shedding Frequency

An experimental investigation has been carried out into the nature of the transport of airborne material in the near aerodynamic wakes of bluff bodies with simple shapes. The main attention was focused on the essential differences existing between axi- symmetric flows (as about disks) and two-dimensional flows (as about rectangular long thin flat plates). Measurements were made for such bodies of the near-wake residence time of injected small particles, along with other and more familiar near- wake properties such as the vortex-shedding frequency and base pressure. It was concluded for disks that the transport of material into and out of the near-wake region is dominated by turbulent diffusion, and is strongly influenced by free-stream turbulence, especially for free-stream turbulence whose length scale is substantially smaller than the disk diameter. For rectangular flat plates, transport is dominated by the periodic shedding of vortices, and to only a secondary extent by turbulent motions, and is not strongly influenced by free-stream turbulence.

ESTIMATION OF THE EFFECT OF FREE-STREAM TURBULENCE AND SOLID PARTICLES ON THE LAMINAR-TURBULENT TRANSITION AT HYPERSONIC SPEEDS

2016 ◽  
Vol 47 (1) ◽  
pp. 15-28 ◽  
Author(s):  
Mikhail Aleksandrovich Pugach ◽  
Alexander Aleksandrovich Ryzhov ◽  
Alexander Vitalievich Fedorov
Keyword(s):  
Free Stream ◽  
Solid Particles ◽  
Free Stream Turbulence ◽  
Turbulent Transition ◽  
Hypersonic Speeds ◽  
Laminar Turbulent Transition
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