Two Domain FLow

akshayn · April 17, 2016, 05:52

Hello all!!

I am trying to simulate a very simple flow in a helical coil with hot fluid and water spray as cold fluid. I am using ansys 16 student version and everytime I run calculation I face the problem of segmentation fault. Is this related to my mesh or the solution initialization. I have attached a link for the igs file which I have used. Can someone please guide me?

http://speedy.sh/4k5hm/assembly-without-copper-pipe.IGS

LuckyTran · April 20, 2016, 16:13

Are you using an UDF's that need user defined memory?

A segmentation fault usually occurs when you try to access a variable that is not defined or is not allocated. Sometimes this can be a product with your hardware/software setup. Usually it is caused by a UDF.

akshayn · April 21, 2016, 08:58

I resolved the problem. I had not selected reference for calculation before initialization. Now it runs perfectly.

For those who have not defined UDF (like in my case) and still get the divergence error, try to check the reference option before initializtion.

April 17, 2016, 05:52	Two Domain FLow	#1
akshayn New Member akshay Join Date: Jan 2015 Posts: 6 Rep Power: 11	Hello all!! I am trying to simulate a very simple flow in a helical coil with hot fluid and water spray as cold fluid. I am using ansys 16 student version and everytime I run calculation I face the problem of segmentation fault. Is this related to my mesh or the solution initialization. I have attached a link for the igs file which I have used. Can someone please guide me? http://speedy.sh/4k5hm/assembly-without-copper-pipe.IGS

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
mass flow in is not equal to mass flow out	saii	CFX	12	March 19, 2018 05:21
Pressure distribution on a wall	darazsbence	CFX	17	October 6, 2015 10:38
Setting rotating frame of referece.	RPFigueiredo	CFX	3	October 28, 2014 04:59
Modeling the flow domain in Icepak	saisanthoshm88	Main CFD Forum	0	April 11, 2011 08:31
Domain for Pipe Flow	Swarup	FLUENT	0	September 28, 2005 23:25

April 20, 2016, 16:13		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,674 Rep Power: 65	Are you using an UDF's that need user defined memory? A segmentation fault usually occurs when you try to access a variable that is not defined or is not allocated. Sometimes this can be a product with your hardware/software setup. Usually it is caused by a UDF.

April 21, 2016, 08:58		#3
akshayn New Member akshay Join Date: Jan 2015 Posts: 6 Rep Power: 11	I resolved the problem. I had not selected reference for calculation before initialization. Now it runs perfectly. For those who have not defined UDF (like in my case) and still get the divergence error, try to check the reference option before initializtion.