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Search took 0.00 seconds. Search: Posts Made By: sidharath
Forum: CFX July 28, 2016, 09:20
Replies: 18
Views: 1,726
Posted By sidharath
Thanks a lot for all your replies Glenn, I really...

Thanks a lot for all your replies Glenn, I really appreciate your time. I should put you as my co-supervisor :p

I'll surely try the coarse mesh at boundaries and keep you posted about the success...
Forum: CFX July 28, 2016, 06:40
Replies: 18
Views: 1,726
Posted By sidharath
Hi Glenn, thank you for the information and tips...

Hi Glenn, thank you for the information and tips to employ nrbc.

I explored the beta options in cfx but as far as I gather, nrbc can be only employed at the inlet and not on the outlet. Is that so...
Forum: CFX July 25, 2016, 05:38
Replies: 18
Views: 1,726
Posted By sidharath
It was in quotes in last reply, my bad. I...

It was in quotes in last reply, my bad.


I extended the adaptive time step study and relaxed the minimum time step limit. To get the initial results, I ran the simulation with frozen (MRF) rotor...
Forum: CFX July 25, 2016, 05:37
Replies: 18
Views: 1,726
Posted By sidharath
I will work on these line and try to device some...

I will work on these line and try to device some less computationally expensive form of mesh independence case.

One more thing, I was wondering if you've any directions for implementing anechoic...
Forum: CFX July 21, 2016, 09:18
Replies: 18
Views: 1,726
Posted By sidharath
Hi Glenn, 1. I ran the adaptive timesteps with...

Hi Glenn,
1. I ran the adaptive timesteps with target min and max coefficient loops as 3 & 5 respectively. I specified the timestep range from 5 degrees /TS to 0.5 deg/TS.
Cfx ran till the least...
Forum: CFX July 19, 2016, 08:02
Replies: 18
Views: 1,726
Posted By sidharath
The grid independence study with add extra 6-8...

The grid independence study with add extra 6-8 simulations. It takes months to run one. Literature does suggest that performance can be predicted fairly easy with the mesh I am currently using. ...
Forum: CFX July 19, 2016, 07:32
Replies: 18
Views: 1,726
Posted By sidharath
Thank you for the recommendation. I've set-up...

Thank you for the recommendation.
I've set-up simulation with adaptive timestep and target of 3-5 coefficient loops instead of courant number and also dropped the convergence target for residual...
Forum: CFX July 18, 2016, 09:35
Replies: 18
Views: 1,726
Posted By sidharath
Thank you for the inputs and reply, Glenn. 3. I...

Thank you for the inputs and reply, Glenn.
3. I am planning to do a time step independence study but the computational constraints are in the process of sorting out.

4. 4 deg is large but there...
Forum: CFX July 18, 2016, 08:23
Replies: 18
Views: 1,726
Posted By sidharath
Issues with DES simulation of centrifugal compressor

Hi all,
I am modelling the near surge point of a centrifugal compressor with DES in CFX 15.
I've attached the images of blending function and strain rate invariant.

I am seeking some direction...
Showing results 1 to 9 of 9

 
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