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why velocity of fluid is constant over the entire field?

Posted Sep 23, 2014, 1:49 a.m. EDT 2 Replies

R Shar
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hi everybody,
i have a simple heat exchanger. please suppose a pipe which in the middle of it there is a heat source. the fluid pass around it. i use U constant at z axis velocity and outflow boundary. i expect that the velocity at various point in the fluid is different but the the velocity is U at all points!
can anybody help me.
thank you,
ras,
regards,
2 Replies Last Post Sep 23, 2014, 2:49 p.m. EDT
Mikael Noerregaard Nielsen
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Posted: 10 years ago Sep 23, 2014, 8:06 a.m. EDT
Hi Sharif

I don't quite understand what you mean, could you please attach your model?

Best Regards
Hi Sharif I don't quite understand what you mean, could you please attach your model? Best Regards
R Shar
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Posted: 10 years ago Sep 23, 2014, 2:49 p.m. EDT
Dear Mikael Noerregaard Nielsen,
Thank you for the reply.
For a time I don't work with COMSOL.
Regards,
Sharif
Dear Mikael Noerregaard Nielsen, Thank you for the reply. For a time I don't work with COMSOL. Regards, Sharif

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