Residuals oscillating for UDS -- CFD Online Discussion Forums

July 11, 2017, 17:33

Residuals oscillating for UDS

vcvedant

Member

Vedamt Chittlangia

Join Date: Feb 2016

Posts: 64

Rep Power: 9

vcvedant is an unknown quantity at this point

I implemented a low-Reynolds number model by using two scalars - UDS-0 (TKE) and UDS-1 (epsilon). I was able to get a converged solution with C_mu = 0.09 but when I changed C_mu to 0.05 I get oscillating residuals for UDS-1.
Can someone help me?

Attached Images

residuals.jpg (45.0 KB, 16 views)

Tags

convergence failure, low reynolds number, residuals fluent, udf and programming

« Previous Thread | Next Thread »

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Trackbacks are Off Pingbacks are On Refbacks are On Forum Rules

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Oscillating residuals in steady flow problem	Mohit Singh	Main CFD Forum	3	February 23, 2016 14:39
Reason for oscillating residuals	fayaazhussain	Main CFD Forum	3	August 21, 2014 10:31
Oscillating residuals and no convergence!	Sherlock_1812	OpenFOAM Running, Solving & CFD	7	August 20, 2014 09:39
Solution not converging, but oscillating residuals around a constant value	Irene	FLUENT	2	February 7, 2012 11:55
Oscillating Residuals in Finer Mesh Case	Jake	FLUENT	3	June 16, 2005 09:34

All times are GMT -4. The time now is 07:50.