1D analysis in Star CCM+ without using OLGA software

Ayush Jain · February 22, 2015, 03:20

I am working on some geometry which is consisting of around 25 pipes (length 1m and diameter 1cm each) feeding into one tank. Pipes inside contains swirl tapes, so meshing single pipe leads to very high mesh count. So what I am planing is to do 1D analysis in the pipe (using some correlations of swirl tapes) and 3D analysis in the tank.

How can I do this without using OLGA software, like using some scripts or simpe codes.

PS: for those who dont know OLGA, its a 1D analysis software already coupled for Star CCM+

lcarasik · February 23, 2015, 11:30

I'm just guessing that you could potentially use the field functions for this. Or potentially write your own script to interact with your star simulation at those points.

Ayush Jain · February 24, 2015, 06:47

Quote:

Originally Posted by lcarasik

I'm just guessing that you could potentially use the field functions for his. Or potentially write your own script to interact with your star simulation at those points.

And I am just assuming that if we can do this problem using feild function but will it be possible to couple it for 3D simulations.
And I totally don't have idea about writing the script in Star CCM+, if you can share the relevant content for this problem will be real help.

Thanks

me3840 · February 24, 2015, 22:14

If you're using field functions there's no 'coupling' to speak of, you're just entering data into the simulation.

What do you need the pipes to do? What information do you need to pass?

Ayush Jain · February 25, 2015, 05:54

Quote:

Originally Posted by me3840

If you're using field functions there's no 'coupling' to speak of, you're just entering data into the simulation.

What do you need the pipes to do? What information do you need to pass?

If I talk about only the flow starting from one end of the pipe and the other end is feeding into the tank. And the tank is also having some outlet. Then in this case the boundary where the pipe and the tank is meeting we will be sharing information related as pressure and velocity, end conditions (such as velocity ,pressure, density) of the pipe will be the inlet conditions for the tank.

me3840 · February 25, 2015, 11:07

Yeah, so it sounds pretty simple, you should be able to do this easily with BCs and some field functions.

February 22, 2015, 03:20	1D analysis in Star CCM+ without using OLGA software	#1
Ayush Jain New Member Ayush Jain Join Date: Nov 2014 Posts: 16 Rep Power: 11	I am working on some geometry which is consisting of around 25 pipes (length 1m and diameter 1cm each) feeding into one tank. Pipes inside contains swirl tapes, so meshing single pipe leads to very high mesh count. So what I am planing is to do 1D analysis in the pipe (using some correlations of swirl tapes) and 3D analysis in the tank. How can I do this without using OLGA software, like using some scripts or simpe codes. PS: for those who dont know OLGA, its a 1D analysis software already coupled for Star CCM+

February 23, 2015, 11:30		#2
lcarasik Senior Member Lane Carasik Join Date: Aug 2014 Posts: 692 Rep Power: 14	I'm just guessing that you could potentially use the field functions for this. Or potentially write your own script to interact with your star simulation at those points. Last edited by lcarasik; February 25, 2015 at 01:54.

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February 24, 2015, 22:14		#4
me3840 Senior Member Join Date: Nov 2010 Location: USA Posts: 1,232 Rep Power: 24	If you're using field functions there's no 'coupling' to speak of, you're just entering data into the simulation. What do you need the pipes to do? What information do you need to pass?

February 25, 2015, 11:07		#6
me3840 Senior Member Join Date: Nov 2010 Location: USA Posts: 1,232 Rep Power: 24	Yeah, so it sounds pretty simple, you should be able to do this easily with BCs and some field functions.