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September 27, 2013, 11:09 |
and Radial velocity
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#1 |
Senior Member
Sasan Ghomi
Join Date: Sep 2012
Location: Denmark
Posts: 292
Rep Power: 14 |
Hi foamers
I have two questions about swak4Foam : 1) I want to calculate radial velocity in an engine . Can I do this action by using swak4Foam? How? which type ? Can you write an example here? 2) How can I calculate an expression according to variables ? for example I want to use probe and I want to have sqrt(2*k/3) in a specific point versus time { k is turbulent energy }.How can I do that? I appreciate any help, Thanks and best regards, Sasan. |
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September 27, 2013, 15:08 |
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#2 | ||
Assistant Moderator
Bernhard Gschaider
Join Date: Mar 2009
Posts: 4,225
Rep Power: 51 |
Quote:
Anyway: if you can write that definition as an expression on a piece of paper then you can calculate it in swak (probably in terms of velocity, position and the axis). Only thing you need to know is that & is the inner product of two vectors and ^ is the cross product (but you were probably aware of that if you looked at the Wiki-page and the incomplete reference guide http://openfoamwiki.net/images/d/db/...mReference.pdf) Quote:
Please have a look at the mentioned presentation and the reference guide before asking further. I only have a limited amount of time for supporting these things and every time I answer questions that are already documented I have less time to complete the actual documentation.
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September 28, 2013, 05:44 |
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#3 |
Senior Member
Sasan Ghomi
Join Date: Sep 2012
Location: Denmark
Posts: 292
Rep Power: 14 |
Dear Bernhard ,
Thank you very much for your reply and I am sorry for asking simple question. I appreciate your help and your attention. I have another question . Can you help me? I want to calculate engine swirl : That : {v= velocity & V=volume & r = position & Rs=swirl ratio &N=rpm} I want to calculate Rs. Can I calculate Rs by using swak4Foam? I think swak doesn't have integration.Also I don't know how can I use r vector in swak !!! Can you guide me? Best regards Sasan. |
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