Shock or Rarefaction?(reflection of shock wave on contact interface)

immortality · February 7, 2014, 16:40

I have a question about reflection of a shock from a contact surface. what occurs when it reach to the contact surface of two fluids with different properties?
the main question is:
when it reflects as another shock and when as a rarefaction wave as well as transmitted shock? whats the condition of it(shock or expansion)?
(although I've read some articles about Richtmeyer-Meshkov instability that this problem should be described there but didn't find a source that clearly explain it)

Aeronautics El. K. · February 11, 2014, 18:18

I don't really know what a Richtmeyer-Meshkov instability is but it seems to me that you're describing the shock-tube problem for which you can find a good description in Anderson's Modern Compressible Flow with historical perspective.

immortality · February 11, 2014, 19:27

Hi dear Lefteris
you understood rightly about shock tube. I've found the answer to my question in an old references! it was so interesting.now,I haven't more time to describe but if anyone wanted to know more please just say to me.

February 7, 2014, 16:40	Shock or Rarefaction?(reflection of shock wave on contact interface)	#1
immortality Senior Member Ehsan Join Date: Oct 2012 Location: Iran Posts: 2,208 Rep Power: 27	I have a question about reflection of a shock from a contact surface. what occurs when it reach to the contact surface of two fluids with different properties? the main question is: when it reflects as another shock and when as a rarefaction wave as well as transmitted shock? whats the condition of it(shock or expansion)? (although I've read some articles about Richtmeyer-Meshkov instability that this problem should be described there but didn't find a source that clearly explain it) __________________ Injustice Anywhere is a Threat for Justice Everywhere.Martin Luther King. To Be or Not To Be,Thats the Question! The Only Stupid Question Is the One that Goes Unasked.

February 11, 2014, 18:18		#2
Aeronautics El. K. Senior Member Lefteris Join Date: Oct 2011 Location: UK Posts: 341 Rep Power: 16	I don't really know what a Richtmeyer-Meshkov instability is but it seems to me that you're describing the shock-tube problem for which you can find a good description in Anderson's Modern Compressible Flow with historical perspective. __________________ Lefteris

February 11, 2014, 19:27		#3
immortality Senior Member Ehsan Join Date: Oct 2012 Location: Iran Posts: 2,208 Rep Power: 27	Hi dear Lefteris you understood rightly about shock tube. I've found the answer to my question in an old references! it was so interesting.now,I haven't more time to describe but if anyone wanted to know more please just say to me. __________________ Injustice Anywhere is a Threat for Justice Everywhere.Martin Luther King. To Be or Not To Be,Thats the Question! The Only Stupid Question Is the One that Goes Unasked.

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