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Search took 0.37 seconds. Search: Posts Made By: richard ben
Forum: FLUENT October 16, 2014, 21:29
Replies: 18
Views: 2,681
Posted By richard ben
You can try decrease the under-relaxation factor....

You can try decrease the under-relaxation factor. And see whether it get convergence. But there are many other ways like checking the mesh etc.
Forum: FLUENT August 19, 2014, 10:46
Replies: 18
Views: 2,681
Posted By richard ben
Yes I did my mesh in ANSYS Workbench. I will try...

Yes I did my mesh in ANSYS Workbench. I will try to mesh it again.

Thanks
Forum: FLUENT August 19, 2014, 10:32
Replies: 18
Views: 2,681
Posted By richard ben
Yeah I checked it. BTW can you see my mesh pic? I...

Yeah I checked it. BTW can you see my mesh pic? I have no idea whether I uploaded it in the correct way.
Forum: FLUENT August 19, 2014, 10:22
Replies: 18
Views: 2,681
Posted By richard ben
https://imageshack.com/i/exQe2oswp This is...

https://imageshack.com/i/exQe2oswp

This is my mesh with 15 inflation layers. I found it weird.
Forum: FLUENT August 19, 2014, 10:13
Replies: 18
Views: 2,681
Posted By richard ben
Thanks again. 1) I have two models. I tried...

Thanks again.

1) I have two models. I tried to generate mesh with 5, 7, 10 and 15 inflation layers. The result for one of the models changes from 0.205 to 0.119, however the experimental data is...
Forum: FLUENT August 19, 2014, 09:44
Replies: 18
Views: 2,681
Posted By richard ben
Philipp, Yes I have one mesh with 10...

Philipp,

Yes I have one mesh with 10 inflation layers and 15 with the other. I solved the flow solution first, then used DPM to do particle tracking, output the mass flow rate at the outlets so...
Forum: FLUENT August 18, 2014, 12:04
Replies: 18
Views: 2,681
Posted By richard ben
Far, I appreciate a lot for your help. I...

Far,

I appreciate a lot for your help. I will try that and get back to you here.

Thanks,
Richard
Forum: FLUENT August 18, 2014, 11:08
Replies: 18
Views: 2,681
Posted By richard ben
Far, Thanks for your information. I...

Far,

Thanks for your information.

I changed my mesh as much as I can and the majority of the y+ value is between 10-13, but the mam is 16, min is 2.

Now my another question is how to...
Forum: FLUENT August 15, 2014, 21:05
Replies: 18
Views: 2,681
Posted By richard ben
RodriguezFatz, Thank you so much for your...

RodriguezFatz,

Thank you so much for your reply.

I guess you are right that the cell size has to be smaller than the particle size. I changed the mesh (inflation layer thickness), and the...
Forum: FLUENT August 14, 2014, 09:53
Replies: 18
Views: 2,681
Posted By richard ben
DPM with boundary inflation layer

Hello all,

I am using DPM and k-w SST turbulence model.

The k-w SST turbulence model requires a very fine mesh at the boundary (yplus value <2).

However if yplus value is very small,...
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