Error due to Unstructured Mesh with custom solver
Edit, problem solved
I'm facing some issues with unstructured Mesh (quality is ok and Skewness is less than 0.45) with my custom solver. My "density variable" has some strange error lines that follows the flow streamlines as shown bellow. The picture shows the normalized density (1 is the freestream value) when the case reaches steadyness. I tried different scheme, the linearUpwindV scheme improve/smooth a little the results but it's not perfect yet.
My case computes the behavior of highly dispersed particles in a fluid (only the fluid impact the particles motion through the drag) using an Eulerian approach. The goal is to compute the particles collection over a cylinder (some particles impact the cylinder and some are moved away by the air flow via drag)
An unsteady Eulerian solver to compute the behavior of highly dispersed tiny particles in a fluid (only the fluid impact the particles motion through the drag).
- volume fraction of the particles
- velocity of the particles
- function of the relative Reynolds number
- time respond of the particle
- velocity of the fluid
Continuity equation :
To solve my problem, I used a skewCorrected
My new fvSchemes is:
I've checked my problem with a structured grid having the same y+ and the small disturbances are gone... The problem is linked to the unstructured but I cannot find any scheme able to smooth/correct those errors.
Could u pls upload a comparison of contour plot of the right result? Using skewCorrected scheme.
|All times are GMT -4. The time now is 07:32.|