CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT > Fluent UDF and Scheme Programming

Query relating to scheme programming

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   October 17, 2020, 09:05
Default Query relating to scheme programming
  #1
New Member
 
Madhu Kalyan
Join Date: Jun 2020
Posts: 6
Rep Power: 2
Madhu Kalyan is on a distinguished road
I have been working with ANSYS (Fluent and CFX) for a little more than a couple of years now, and right now I am working on a problem that can be done using periodic conditions. I am currently using ANSYS 2020 R1 and I can set the zones I need to translational periodicity. My queries are as follows:

1. How can I parametrize the mass flow rate condition as the input parameter and the pressure gradient as the output parameter? I have read in some online forums that I have to code it in. If so, How can I do that, and is there any non-coding procedure to achieve the parameterization?

2. I know that having a convergence of 10^-6 is the best but in case I am unable to achieve it then what should be the optimal route. I have conducted grid independence for my model with a low mass flow rate and that optimal mesh is actually failing to converge when I go for a little higher mass flow rate. I do try and change the "pressure" and "momentum" in the "controls" menu and I do get slightly better residuals but not being able to achieve the 10^-6 and it kind of flatlines around the 10^-4 mark. What should be done according to you?

3. What do the GPGPUs for the parallel computation before entering the fluent solver actually mean. I do have a 4 GB NVIDIA graphic card and I did read a little about involving the GPU for simulations by using a 3rd party software in earlier versions. Do the 3rd party ones still hold good or can I directly give the number of cores?
Madhu Kalyan is offline   Reply With Quote

Reply

Tags
convergence, fluent, gpu processing, scheme programming

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Error: Out of scheme heap space SSG_NJ FLUENT 1 September 22, 2020 11:21
Looping a journal in Scheme programming Arvind_CFD Fluent UDF and Scheme Programming 1 October 11, 2014 11:00
Scheme Programming in Fluent James Nally FLUENT 1 April 25, 2008 12:39
scheme programming abdellah FLUENT 2 June 14, 2005 04:20
scheme programming in Fluent Wenbin FLUENT 2 November 27, 2003 13:49


All times are GMT -4. The time now is 04:20.