Hi All! I am new to CFD. Would u please tell me some clue about grid refinement. As I need fine grid at some particlular location (in the domain) at any particular time. And after some other time, refined grid is needed at some other location. I heard grid refinment can help. Otherwise simulation on fine grid (whole domain) is wastage of time. Would any one please suggest something. Presently I am using structured grid on cartesian co-ordinates. Thank you in anticipation. Sas.

Tell us your problem description more detail, for example, you want to solve flow, multiphase flow, heat transfer, crystal growth, etc.

For example, the flow of a fluid into another fluid of lesser density. So I need fine grid only at the location where this flow of higher density travles. Other regions (like ambient fluid over this fluid) coarse grid may be used. Am I right in thinking like that. Thanx in advance.

check below site.

http://seesar.lbl.gov/ccse/Software/index.html

Thank you very much. there is link " A Conservative Adaptive Projection Method for the Variable Density Incompressible Navier-Stokes equations". I wanted to study that. but that link does not work. It is impossible to open it. What can be done. Please advise. Sas.

Hi Chauhan

I have sent that paper at your yahoo ID. Check it.

Vinod Dhiman

A tough issue, I guess. Some recent references: 1.Bramkamp,F. et al. 2004. J. Comput. Phys. 197. 2.Mahart,M.,2004. Computers& Fluids 33

Thanx Yuan. I will look into this publications. lets us c some things happens.

Respected sir, i need information of above mentioned topic from basics,examples and application etc. with respect to CFD. iam M-tech thermal student of nit,nagpur india thanking u waiting for ur reply