CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Main CFD Forum

Shock Excursion?

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Display Modes
Old   February 20, 2006, 14:04
Default Shock Excursion?
  #1
Frank
Guest
 
Posts: n/a
Hello Folks, I was wondering if anyone could tell me what is meant by "shock excursion"? I'm quite new to unsteady transonic aerodynamics and have seen this term in a few papers but haven't understood what is meant.

Cheers F
  Reply With Quote

Old   February 21, 2006, 03:37
Default Re: Shock Excursion?
  #2
Ananda Himansu
Guest
 
Posts: n/a
In unsteady transonic aerodynamics, a shock can move relative to the reference frame (unlike the steady case). The term "shock excursion" should refer to either (a) the fact that a shock moves (outward, generally) instead of remaining in place, or (b) the distance covered in such motion. For example, the so-called "unstart" of a supersonic inlet involves excursion of the shock upstream and subsequent spillage of the shock out of the inlet into the supersonic flow upstream of the inlet to form a bow shock. I am unaware of any specialized meaning for "shock excursion" in transonic aerodynamics. The term "excursion", as applied to objects, retains its ordinary English meaning. For example, one speaks of the excursion of a drill bit in a drill. Perhaps, though, you are already aware of this usage.
  Reply With Quote

Old   February 21, 2006, 07:12
Default Re: Shock Excursion?
  #3
Frank
Guest
 
Posts: n/a
Thanks Ananda that's a big help.

This is the definition I had assumed but I thought I had best check to make sure I didn't look silly in front of my boss )

Cheers Frank
  Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
HLL Riemann Shock Tube Matlab Problem Luke F Main CFD Forum 1 July 7, 2009 13:44
Shock Fitting Craig FLUENT 1 April 24, 2008 17:06
Will compression waves overtake a moving shock? GRA Main CFD Forum 2 October 19, 2006 00:24
Shock capturing Dr B.M. Smith (Smith) OpenFOAM Running, Solving & CFD 1 December 10, 2004 06:40
Normal shock waves Fernando Velasco Main CFD Forum 1 April 6, 2000 14:10


All times are GMT -4. The time now is 12:52.