Numerical study of non-equilibrium condensation and shock waves in transonic moist-air and steam flows

2015 ◽  
Vol 46 ◽  
pp. 188-196 ◽  
Author(s):  
S. Hamidi ◽  
M.J. Kermani
Keyword(s):  
Shock Waves ◽  
Numerical Study ◽  
Moist Air ◽  
And Shock Waves ◽  
Non Equilibrium

Effect of non-equilibrium condensation of moist air on unsteady behaviour of shock waves around a circular arc blade

2007 ◽  
Vol 16 (2) ◽  
pp. 134-139 ◽  
Author(s):  
Shigeru Matsuo ◽  
Kenbu Teramoto ◽  
Miah MD. Ashraful Alam ◽  
Toshiaki Setoguchi ◽  
Heuy Dong Kim ◽  
...  
Keyword(s):  
Shock Waves ◽  
Moist Air ◽  
Circular Arc ◽  
Non Equilibrium

Transonic Moist Air Flow around a Symmetric Disc Butterfly Valve with Non-Equilibrium Condensation

2010 ◽  
Vol 224 (10) ◽  
pp. 2165-2179 ◽  
Author(s):  
A B M T Hasan ◽  
S Matsuo ◽  
T Setoguchi ◽  
H-D Kim
Keyword(s):  
Shock Waves ◽  
Flow Field ◽  
Pressure Oscillation ◽  
Rapid Expansion ◽  
Butterfly Valve ◽  
Moist Air ◽  
Aerodynamic Instability ◽  
Vortex Shedding Frequency ◽  
Induced Flow ◽  
Non Equilibrium

Transonic flow around a symmetric disc butterfly valve is associated with the appearance of shock waves on valve surfaces. In this case, the interaction between shock waves and boundary layers becomes complex and thus generates the flow-induced aerodynamic instability. In the transonic or supersonic flow where vapour is contained in the main flow, the rapid expansion of the flow may give rise to non-equilibrium condensation. In the present study, the effect of non-equilibrium condensation of moist air on the shock-induced flow field oscillation around a butterfly valve was investigated numerically. The results showed that in cases with non-equilibrium condensation, the flow field aerodynamic instabilities such as root mean square of pressure oscillation and shock-induced oscillation frequency are reduced significantly compared with those without the non-equilibrium condensation. Moreover, the total pressure loss increases and the vortex shedding frequency is reduced with non-equilibrium condensation.

Acoustic and Shock Waves in Non-equilibrium Gases

2000 ◽  
pp. 287-297
Author(s):  
Mario Capitelli ◽  
Carlos M. Ferreira ◽  
Boris F. Gordiets ◽  
Alexey I. Osipov
Keyword(s):  
Shock Waves ◽  
And Shock Waves ◽  
Non Equilibrium

513 Numerical Study of Weak Compression and Shock Waves Propagating in the Duct with the Ditched Wall

2005 ◽  
Vol 2005 (0) ◽  
pp. 181-182
Author(s):  
Hiroto FUJII ◽  
Mihoko SHIROYAMA ◽  
Kazuyuki KAGE ◽  
Katsuya ISHIMATSU ◽  
Toyoyasu OKUBAYASHI
Keyword(s):  
Shock Waves ◽  
Numerical Study ◽  
And Shock Waves
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