Improved method of determining flow parameters in a hotshot wind tunnel

2016 ◽  
Author(s):  
A. A. Gavrishev ◽  
I. S. Tsyryulnikov
Keyword(s):  
Wind Tunnel ◽  
Improved Method ◽  
Flow Parameters ◽  
Hotshot Wind Tunnel

Experimental verification of the method of calculating the flow parameters in the test section of the hotshot wind tunnel

2012 ◽  
Vol 53 (5) ◽  
pp. 700-709 ◽  
Author(s):  
Yu. V. Gromyko ◽  
A. A. Maslov ◽  
P. A. Polivanov ◽  
I. S. Tsyryul’nikov ◽  
V. V. Shumskii ◽  
...  
Keyword(s):  
Wind Tunnel ◽  
Experimental Verification ◽  
Test Section ◽  
Flow Parameters ◽  
Hotshot Wind Tunnel

Development of the Reattached Flow Behind Surface-Mounted Two-Dimensional Prisms

1988 ◽  
Vol 110 (2) ◽  
pp. 127-133 ◽  
Author(s):  
J. Antoniou ◽  
G. Bergeles
Keyword(s):  
Boundary Layer ◽  
Wind Tunnel ◽  
Open Circuit ◽  
Two Dimensional ◽  
Blow Down ◽  
Length Scales ◽  
Turbulent Eddies ◽  
Flow Parameters ◽  
Varying Length ◽  
Dimensional Surface

Velocity and turbulence measurements are presented for the region after reattachment behind a two dimensional surface-mounted prism of varying length. The prism is mounted on the floor of an open circuit blow down wind tunnel and flow parameters for the developing boundary layer are deduced from the measurements; longitudinal integral time and length scales are estimated through autocorrelations. Reattchment on top of the prism, due to its increased length, affects the characteristics of the developing boundary layer; in this case the shear layer originating from the up-stream edge of the prism splits twice at reattachment points on top and behind the prism and the integral length scales of the turbulent eddies are found to be smaller due to the splitting.

scholarly journals Measurements of 2-D flow parameters around rectangular prisms arranged at the ground

2008 ◽  
Vol 3 (2) ◽  
pp. 033-051 ◽  
Author(s):  
Ewa Błazik-Borowa ◽  
Jarosław Bęc ◽  
Tomasz Nowicki ◽  
Tomasz Lipecki ◽  
Jacek Szulej
Keyword(s):  
Comparative Analysis ◽  
Standard Deviation ◽  
Wind Tunnel ◽  
Statistical Moments ◽  
Flow Parameters ◽  
Measuring Space

Measurements of 2-D flows around a square and a rectangle (ratio 2:1) in wind tunnel have been presented in this paper. The results of these measurements presented here are pressure and standard deviation distributions on the models’ walls, components of velocity vectors and statistical moments for fluctuations of velocity in the wind tunnel measuring space. The values of parameters have been presented in graphs and subsequently used in a comparative analysis of the flows around both models.

Estimation of the Flow Parametrs in Hypersonic Wind Tunnels

2011 ◽  
Vol 6 (2) ◽  
pp. 10-16
Author(s):  
Yuriy V. Gromyko ◽  
Anatoliy A. Maslov ◽  
Andrey A. Sidorenko ◽  
Pavel A. Polivanov ◽  
Ivan S. Tsyryulnikov
Keyword(s):  
Carbon Dioxide ◽  
Wind Tunnel ◽  
Flow Velocity ◽  
Nozzle Exit ◽  
Wind Tunnels ◽  
Experimental Measurements ◽  
Real Gas ◽  
Flow Parameters ◽  
Hypersonic Wind Tunnel ◽  
Parameters Calculation

The paper describes the algorithm of the flow parameters calculation for hypersonic wind tunnels taking into account the real gas properties using air and carbon dioxide as a working gas. The results of the experimental measurements of the flow velocity at the contoured nozzle exit in the hypersonic wind tunnel IT-302M have been carried out for verification of the algorithm

On the Impingement of Supersonic Jet on a Normal Flat Surface

1982 ◽  
Vol 33 (3) ◽  
pp. 199-218 ◽  
Author(s):  
B.N. Pamadi
Keyword(s):  
Flat Surface ◽  
Supersonic Jet ◽  
Improved Method ◽  
Normal Surface ◽  
Underexpanded Jet ◽  
Flow Parameters ◽  
Supersonic Underexpanded Jet ◽  
Method Of Integral Relations ◽  
Integral Relations ◽  
Good Agreement

SummaryAn improved method, based on one strip approximation of the method of integral relations which was reported originally by Belov, Ginzburg and Shub, is presented for the calculation of flow parameters in the impingement region of a supersonic, underexpanded jet striking a normal surface located within the first cell. The results are presented for two impingement conditions and found to be in good agreement with the experimental data.

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