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Effects of wall conduction and rarefaction on shock propagation in a micro-channel

DSpace at IIT Bombay

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Field Value
 
Title Effects of wall conduction and rarefaction on shock propagation in a micro-channel
 
Creator WATVISAVE, DS
BHANDARKAR, UV
PURANIK, BP
 
Subject Micro shock channel
Direct Simulation Monte Carlo
Wall accommodation
HEAT-TRANSFER
WAVE PROPAGATION
GAS-FLOW
SIMULATION
PRESSURE
TUBES
MODEL
COMPUTATIONS
 
Description A Direct Simulation Monte Carlo code is coupled with a continuum unsteady conduction finite volume code to study the effects of wall conduction on shock propagation in a micro-channel. In addition, the effects of rarefaction and wall accommodation are also investigated. Wall accommodation is seen to influence the shock attenuation more significantly than wall conduction. The results indicate that both the shock front Mach number and shock strength are comparatively higher in case of adiabatic wall condition as there is no loss of energy from the shocked region. At higher rarefaction, the effect of wall accommodation as well as that of wall conduction are seen to become more noticeable. The simulation results show that it is not necessary to exactly model the wall conduction heat transfer for studying shock attenuation, and the two limiting situations of isothermal and adiabatic approximations are satisfactory as the thermal wall boundary conditions.
 
Publisher SPRINGER
 
Date 2014-12-28T11:48:29Z
2014-12-28T11:48:29Z
2014
 
Type Article
 
Identifier SHOCK WAVES, 24(3)295-306
0938-1287
1432-2153
http://dx.doi.org/10.1007/s00193-013-0477-0
http://dspace.library.iitb.ac.in/jspui/handle/100/16399
 
Language English