CFD Online Logo CFD Online URL
Home > Forums > FLOW-3D

about non-inertial frame

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

LinkBack Thread Tools Display Modes
Old   March 6, 2009, 04:21
Default about non-inertial frame
Posts: n/a
Recently,I have been using Flow3d to simulate liquid sloshing ,while encounted with the following problems.Firstly, is it necessary for one to set initial attitude(like Euler Angles or Quaternions ) of body-fixed frame with reference to inertial frame? if so ,how? Secondly, if I only set (initial ) gravity in "Gravity Field",not "Gravity", as suggested to me by MC last time (I really appreciated your suggestions,MC),Flow3d would tell me that "VLIN"(initial volume of liquid) can't be set for "gravity is zero". I am really puzzled and come here to seek help.Thank you so much.

  Reply With Quote

Old   March 6, 2009, 16:30
Default Re: about non-inertial frame
Posts: n/a
About the 2nd question, you can try deactivating the non-inertial frame model first and setting the gravity in the normal way. That way, with the given initial volume, you can obtain the elevation of free surface from the preprocessor results. Then, switch back to non-inertial frame model with initial fluid height specified.
  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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Rotating rotor inside a frame wllmk1 OpenFOAM 38 April 8, 2014 06:58
Question about N-S eqs. in body fixed noninertial reference frame doctorWho Main CFD Forum 0 July 12, 2011 18:07
Moving refence frame yagizb FLUENT 0 March 19, 2011 04:14
question about governing equation in CFX using rotating/non rotating reference frame rystokes CFX 0 January 12, 2010 07:14
vorticity depends on non-inertia frame of referenc dingxi Main CFD Forum 3 October 18, 2006 13:13

All times are GMT -4. The time now is 03:11.