CFD Online Logo CFD Online URL
Home > Forums > Main CFD Forum

C F X - T A S C F L O W

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

LinkBack Thread Tools Display Modes
Old   July 28, 1999, 15:47
Default C F X - T A S C F L O W
Posts: n/a
Has anyone out there tried to solve a simple shock tube problem using CFX-Tasflow ? It is a pre-requisite to the solution of my actual problem. This is an urgent call for help.

It is a simple duct, initially with high pressure (10atm) on one half and low pressure (1atm) in the other half. T initial, in the entire domain is 300.0K. Strong shocks should naturally propogate in the direction from high to low P. The BCs are all walls (adiabatic).

My problem lies in specifying the correct parameters in the PRM file. I am hoping for some Tips and Hints, thats all.

Thank you. PLEASE e-mail: OR call 416-978-6443.

  Reply With Quote

Old   July 28, 1999, 17:11
Default Re: C F X - T A S C F L O W
John C. Chien
Posts: n/a
(1). The high pressure ratio shock tube problem is ideal for the transient, density based formulation. (2). My understanding is that CFX-TASCflow , Fluent, UNS,... are all pressure-based formulation suitable for low speed flows. (these programs may have been extended to transonic or supersonic flows, but still, these are pressure-based formulation) A density based code would be a better choice for the high pressure ratio shock tube problem.
  Reply With Quote


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

All times are GMT -4. The time now is 17:19.