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

 March 14, 2005, 19:37 Question about y+ #1 galeazzo Guest   Posts: n/a Sponsored Links Hi, I have two questions about the wall function formulation in the k-eps model. - In what point of the cell the y+ is calculated? It is the cell centroid or the face oposite to the wall? - The wall function is used to calculate the velocity only on the first row of cells next to the wall or until the end of the boundary layer? Any help will be apreciated! Galeazzo

 March 15, 2005, 08:46 Re: Question about y+ #2 Jason Guest   Posts: n/a It's calculated in the cell centroid (there is no opposite face on a tet mesh) and it's only used in the first cells that are adjacent to the wall. Jason

 March 15, 2005, 10:05 Re: Question about y+ #3 galeazzo Guest   Posts: n/a Thanks Jason!

 March 22, 2005, 05:02 Questions about y+ #4 navneet gupta Guest   Posts: n/a please help me to find the answer of following questions. 1. what is the theoretical farmula of Y+? 2.what is wall function's farmula and if there are other function to calculate the turbulent properties then please tell me?. 3.As per guide line to increase Y+ values we should make coarse grid near to flow surface but if we want to capture boundary layer effect too then how to choose optimum mesh size,so we can satisfy both requirement?. It will be very kind of you,if u send aswer of my questions on my e-mail id navneet@isac.ernet.in thanks with regards navneet

 Thread Tools Display Modes Linear Mode

 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 OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules

 Similar Threads Thread Thread Starter Forum Replies Last Post tanven FLUENT 2 July 5, 2015 11:22 niklas OpenFOAM 2 July 31, 2013 16:03 universez OpenFOAM Running, Solving & CFD 0 January 12, 2010 21:31 Carlos Main CFD Forum 4 August 23, 2002 05:55 K.L.Huang Siemens 1 March 29, 2000 04:57