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Showing results 1 to 13 of 13
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Posts Made By:
Simbelmynė
Forum:
Main CFD Forum
April 1, 2013, 05:19
Replies:
26
Conservation- v.s. non-conservation form in incompressible flows
Views:
3,470
Posted By
Simbelmynė
Yes I understand this. If you check my previous...
Yes I understand this. If you check my previous post again you will see that I put the word "usually" when I said that conservation/non-conservation form usually comes to the treatment of the...
Forum:
Main CFD Forum
March 29, 2013, 19:33
Replies:
26
Conservation- v.s. non-conservation form in incompressible flows
Views:
3,470
Posted By
Simbelmynė
Thank you for your reply leflix. ...
Thank you for your reply leflix.
Unfortunately I don't understand it at all. I'll try to explain why and hopefully you can help me understand.
1. Since you replied to my previous post (which...
Forum:
Main CFD Forum
March 22, 2013, 20:18
Replies:
26
Conservation- v.s. non-conservation form in incompressible flows
Views:
3,470
Posted By
Simbelmynė
Thank you for the references. I am at home so I...
Thank you for the references. I am at home so I can not check the paper but I Will on Monday.
Regarding the book reference, yes I understand that in the case of a discontinuous solution we are...
Forum:
Main CFD Forum
March 22, 2013, 13:16
Replies:
26
Conservation- v.s. non-conservation form in incompressible flows
Views:
3,470
Posted By
Simbelmynė
Ok to summarize this discussion so far: agd...
Ok to summarize this discussion so far:
agd advocates conservation form because it makes it easier to satisfy the divergence free condition.
lefix says conservation form is a must for FVM, but...
Forum:
Main CFD Forum
March 20, 2013, 06:03
Replies:
26
Conservation- v.s. non-conservation form in incompressible flows
Views:
3,470
Posted By
Simbelmynė
I read it as: On unstructured grids using...
I read it as:
On unstructured grids using conservation form the conservation is still ensured, however accuracy is not (if first order approximations are used).
Perhaps this is a no-issue since...
Forum:
Main CFD Forum
March 20, 2013, 05:02
Replies:
26
Conservation- v.s. non-conservation form in incompressible flows
Views:
3,470
Posted By
Simbelmynė
Ok, but there seem to be some discrepancy in the...
Ok, but there seem to be some discrepancy in the subject. For instance:
http://www.flow3d.com/cfd-101/cfd-101-conservation.html
Particularly the part with unstructured grids.
I fully agree...
Forum:
Main CFD Forum
March 20, 2013, 03:49
Replies:
26
Conservation- v.s. non-conservation form in incompressible flows
Views:
3,470
Posted By
Simbelmynė
Thank you Praveen for you input, so how would you...
Thank you Praveen for you input, so how would you respond to my original question?
Forum:
Main CFD Forum
March 20, 2013, 02:28
Replies:
26
Conservation- v.s. non-conservation form in incompressible flows
Views:
3,470
Posted By
Simbelmynė
Ok this is interesting. I have never seen this...
Ok this is interesting. I have never seen this mentioned in any textbook. Usually we describe viscous flows as either elliptic (steady) or parabolic (unsteady). Inviscid flows can be elliptic or...
Forum:
Main CFD Forum
March 19, 2013, 17:57
Replies:
26
Conservation- v.s. non-conservation form in incompressible flows
Views:
3,470
Posted By
Simbelmynė
Thank you for your reply, but could you please...
Thank you for your reply, but could you please elaborate as to why in the case of finite difference?
Forum:
Main CFD Forum
March 19, 2013, 17:55
Replies:
26
Conservation- v.s. non-conservation form in incompressible flows
Views:
3,470
Posted By
Simbelmynė
How does the incompressibility constraint affect...
How does the incompressibility constraint affect such an equation (Burger's equation reduces to du/dt=0?)? The book by Leveque deals primarily with hyperbolic equations and shock waves not with...
Forum:
Main CFD Forum
March 19, 2013, 17:08
Replies:
26
Conservation- v.s. non-conservation form in incompressible flows
Views:
3,470
Posted By
Simbelmynė
Are you talking about surface waves?
Are you talking about surface waves?
Forum:
Main CFD Forum
March 19, 2013, 14:20
Replies:
26
Conservation- v.s. non-conservation form in incompressible flows
Views:
3,470
Posted By
Simbelmynė
What do you mean by easier? Will the solution of...
What do you mean by easier? Will the solution of the poisson equation for pressure converge faster?
(Both methods should be divergence free upon convergence right?)
Forum:
Main CFD Forum
March 19, 2013, 11:18
Replies:
26
Conservation- v.s. non-conservation form in incompressible flows
Views:
3,470
Posted By
Simbelmynė
Conservation- v.s. non-conservation form in incompressible flows
Hey,
Any particular reason to use either of the two methods when we look at viscous incompressible flow?
Showing results 1 to 13 of 13
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