I have difficulty in understanding the panel methods. I would like to add the kinematic and dynamic BCs into a code to make it free surface panel code. I would appreciate it very much if anyone would guide me in finding good documentation on this topic.

Thank you very much for your time.

Best Regards

Zeynep Cehreli

Hi

Have a look in Low-speed Aerodynamics, 2nd Edition, by Joseph Katz and Allen Plotkin. pp530 pp533

Also it might be useful getting hold of the VSAERO/USAERO code notes as these describe the implementation of free surface methods.

Regard James

Katz and Plotkin is good for general info about panel methods but is a little thin on free surface issues. The AMI free surface code (FSWAVE I think) which is based on VSAERO is also documented in a series of publications by Brian Maskew, at least one of which appears in the SNAME Transactions in the early or mid 90's I believe. An excellent discussion of free surface panel methods is also presented in Volker Bertrams book "Practical Hydrodynamics" (not certain about the whole title, but the first word is "Practical". It's published by Butterworth).

Other useful references, particularly for ship wake problems, are papers by by Dawson, Larrson and Xia, Raven, Rosen, Sclavounous, Nakos, and Kring which appear in places like the ONR Naval Hydrodynamics Symposiums, Journal of Ship Research, etc. Dissertations by Raven (Delft I think), Nakos (MIT), and Kring (MIT) are also helpful.

If I were going to recommend one thing I'd probably say get Bertram's book.

Good Luck!!

Thank you very much for both replies. Is there anyway that I can fýnd the VSAERO/USAERO code notes? I believe it will be very useful in understandýng the implementation of free surface modifications as stated by James Date.

regards,

Zeynep

Hi

I think i have a hard copy somewhere, I'll get back to you in the next day or so if i can dig them out.

James

The two papers are:

VSAERO - A computer program for calculating the non-liner aerodynamics characteristics of arbitary configurations, Theory document, by Brain Maskew, Analytical Methods, Inc, 2047 - 152nd Avenue, N.E.m Redmond, Washington, 98052. Prepared for: NASA Ames Research Center Moffett Field, California 94035. Dec 1984

USAERO - A time-domain approach to complex, free-surface problems (Paper presented at the symposium on high speed marine vehicles, Naples, Italy, Feb 14-15, 1991), Dr Brain Maskew.

Regards James