CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   Main CFD Forum (http://www.cfd-online.com/Forums/main/)
-   -   Divergence theorem in cylinderical coordinates (http://www.cfd-online.com/Forums/main/8181-divergence-theorem-cylinderical-coordinates.html)

peter.zhao October 7, 2004 11:27

Divergence theorem in cylinderical coordinates
 
It's common for finite volume method to calculate the derivatives in viscous flux according to divergence theorem, but I do not known the detail formula in axisymmetrical cylinderical coordinates. for example, how to caluclate the derivatives of temperature according to divergence theorem? Thank a lot in advance!

Jim_Park October 7, 2004 17:16

Re: Divergence theorem in cylinderical coordinates
 
Get a copy of "Transport Phenomena", by Bird, Stewart and Lightfoot. This shows all the vector operations in the three major coordinate systems - along with lots of other details.

A bit less expensive, Schwamm's outline series has a soft-cover summary on Vector Analysis.

peter.zhao October 10, 2004 06:56

Re: Divergence theorem in cylinderical coordinates
 
Thank Park, I know how to calculate the derivatives of a vector, such as velocity, using divergence theorem according to any Vector Analysis book, but I don not known how to calculate the derivatives of a scalar, such as temperature, using divergence theorem in axisymmetrical coordinates. Can you shed light on it?

Jim_Park October 11, 2004 08:54

Re: Divergence theorem in cylinderical coordinates
 
Peter,

Sorry, I did answer the wrong question!

You might take a look at

C. W. Hirt, A. A. Amsden, and J. L. Cook, "An arbitrary Langrangian-Eulerian Computing Method for All Flow Speeds," J. Comp. Phys, v. 14, pp. 227-253 (1974).

Also the reports for the KIVA series of codes developed at Los Alamos - if you can get them.

Finally, try the U. of Wisconsin web sites for research simulating combustion in a diesel engine that was spun off from the KIVA-series codes.

I don't have the details readily available. You might try contacting Hans Ruppel at Los Alamos, who at one time had a nice set of notes working out the details of the surface integral around a control volume.

Good luck!


All times are GMT -4. The time now is 21:48.