Periodic boundaries in Floworks

March 9, 2009, 08:41

Hi,

I am trying to simulate a rotational symmetric device which induces swirl motion. I wonder if there is a possibility to do a periodic domain interface (this is how it is called in CFX). In my try, I set the lower limit of the computational domain to zero for X and Z (It is rotational symmetric around the y-axis) So I have a "piece of cake" of my round device. The lower bounds were set to periodic. However, the result is definitely not what I wanted. Is there any other possibility to simplify my simulation?

thank you

sven

alainF · March 17, 2009, 06:53

Hi,
periodic boundaries in floworks are translational periodicity - not rotationnal. If you have swirl motion you must solve it on a whole model.

March 9, 2009, 08:41	Periodic boundaries in Floworks	#1
SvG Guest Posts: n/a	Hi, I am trying to simulate a rotational symmetric device which induces swirl motion. I wonder if there is a possibility to do a periodic domain interface (this is how it is called in CFX). In my try, I set the lower limit of the computational domain to zero for X and Z (It is rotational symmetric around the y-axis) So I have a "piece of cake" of my round device. The lower bounds were set to periodic. However, the result is definitely not what I wanted. Is there any other possibility to simplify my simulation? thank you sven

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March 17, 2009, 06:53		#2
alainF New Member Alain FRYDMAN Join Date: Mar 2009 Posts: 8 Rep Power: 17	Hi, periodic boundaries in floworks are translational periodicity - not rotationnal. If you have swirl motion you must solve it on a whole model.