|March 28, 2007, 07:12||
Gradient of Scalar calculation in 3D BFCskew grids
Hi, I am trying to compute the gradient of a scalar (electric potential) in order to get the electric field. The problem is the difficulty and accuracy of the gradient calculated in skew grids.
It seems that the function FNDSDX does not compensate for grid skewness, is this true? where can i check the coding for FNDSDX?
I considered using the Rhie-Chow interpolation, but accuracy affected if the cell face is not in line with the adjacent nodes.
Any other approach i can use to compute the gradient for BFC skew grids?
Please help. CHAM>> do u have a subroutine to do this? Or the user have to write their own code for this, if there is a method to do so?
|Thread||Thread Starter||Forum||Replies||Last Post|
|UDF-How to calculate gradient of a scalar||Tony Tonton||Fluent UDF and Scheme Programming||16||February 9, 2015 02:12|
|How to get the gradient of a scalar in CFX 11.0||sm||CFX||4||May 29, 2007 03:13|
|scalar gradient||roadracer||CD-adapco||1||October 29, 2003 11:57|
|Scalar gradient||Alexander||CD-adapco||6||February 19, 2003 16:32|
|how to get a gradient of scalar||xqy||Phoenics||2||June 7, 2002 21:43|