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

Turbulent flow over flat plate

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

LinkBack Thread Tools Search this Thread Display Modes
Old   May 8, 2000, 02:26
Default Turbulent flow over flat plate
Posts: n/a
My problem is a turbulent flow over flat plate. i have u-momentum equation and continuity equation. v-momentum equation is neglected by using order of magnitudes. no pressure difference in x-direction because of potential flow. i have defined wall boundary and inflow boundary in x-dir and top flow boundary in y-dir. outflow boundary in x-dir is not defined. i am using finite volume method. at the wall u velocity is calculated at yplus=30 by using loglaw. for log law shear stress at wall is calculated by meot*du/dy where meot is turb viscosity which is calculated by mixing length model. mixing length model is also used for modelling terms in u momentum eqn. The problem is after many iterations the distance from wall calculated from yplus crosses the first grid. please help me.
  Reply With Quote

Old   May 8, 2000, 07:03
Default Re: Turbulent flow over flat plate
Posts: n/a
If I may seek some clarification:

How many equations are you solving: 1 (u) or 2 (u plus something else - y perhaps?)?

Are you fixing the mass flow and iterating for wall stress, vice-versa or something else?

I am not sure I fully understand the last sentence (the problem). Are you fixing the grid line at the wall to y+ = 30 and the next grid line away from the wall has a y+ < 30?

  Reply With Quote


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
compressible laminar flow over flat plate varunjain89 Main CFD Forum 19 April 18, 2019 06:07
CFD by anderson, chp 10.... supersonic flow over flat plate varunjain89 Main CFD Forum 18 May 11, 2018 07:31
turbulent boundary layer over a flat plate pritam.edke Main CFD Forum 0 November 5, 2009 12:53
Turbulent boundary layer on a flat plate seb62 OpenFOAM Running, Solving & CFD 1 January 17, 2009 03:30
Flow over a flat plate & Flow over a cylinder cfdxue Main CFD Forum 0 November 26, 2007 23:26

All times are GMT -4. The time now is 06:07.