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Forum: FLUENT Today, 03:24
Replies: 3
Views: 2,971
Posted By Abdelwahab
Same Issue

Did you get the answer, Zhu ?
Forum: FLUENT Yesterday, 12:35
Replies: 0
Views: 68
Posted By jimbeet
Imposing both rotational and translational velocity on a spherical domain

I am still new in using Ansys fluent and trying to simulate a spinning golf ball with dimples to study its drag and lift coefficient when the size of dimple is manipulated. I have read some research...
Forum: FLUENT May 4, 2024, 11:44
Replies: 1
Views: 61
Posted By Vishnuram
RSM vs SST k-omega

Hi, I'm a student working on my final year project in supersonic intake,
My question is about which turbulence model I should choose (RSM or SST k-omega) and the other question is about for the RSM...
Forum: FLUENT May 4, 2024, 11:41
Replies: 1
Views: 61
Posted By Vishnuram
Turbulence

Hi, I'm a student working on my final year project in supersonic intake,
My question is about which turbulence model I should choose (RSM or SST k-omega) and the other question is about for the RSM...
Forum: FLUENT May 3, 2024, 18:06
Replies: 0
Views: 50
Posted By xisluke
Mass Flow Inlet BC: costant velocity and density fields

Hi guys,

I'm running a reactive RANS exploiting the Partially Premixed Combustion (Steady Diffusion) model. I imposed fixed mass flow rates at my inlets and I ran a first analysis activating only...
Forum: FLUENT May 3, 2024, 15:56
Replies: 0
Views: 41
Posted By being.indraniil
Question NACA 0012 AIRFOIL Validation errors

Hello friends and CFD Enthusiasts,

I have been struggling to work on one of the problems which involves simulation of a conventional NACA 0012 airfoil. Despite trying almost everything I haven't...
Forum: FLUENT May 3, 2024, 14:56
Replies: 2
Views: 76
Posted By Saku03
Talking That is great. Thanks for your help

That is great.
Thanks for your help
Forum: FLUENT May 3, 2024, 12:33
Replies: 2
Views: 76
Posted By voidcrow
I managed to do something like that with an...

I managed to do something like that with an "on-demand" UDF, which I apply after the simulation converges. Here is an example.


DEFINE_ON_DEMAND(compute_flow_rates) {
Domain *d =...
Forum: FLUENT May 3, 2024, 12:14
Replies: 10
Views: 6,058
Posted By usmani
Question

Did you multiply the pressure term with porosity? It would be a great help. I am solving this in fortran, and my code works for epsilon 0.9 but blows for 0.6. Please suggest
Forum: FLUENT May 2, 2024, 22:56
Replies: 4
Views: 652
Posted By ashutosh46
problem with mesh

Hi, i was also experiencing same problem some time ago. The reason for energy equation divergence is the misalignment of the heat transferring control volumes (mesh). This problem need to be solved...
Forum: Fluent UDF and Scheme Programming May 2, 2024, 21:35
Replies: 0
Views: 57
Posted By antosan
F_AREA and Segmentation Fault

Hello,

I need to calculate the area of all faces within a given domain. What I did is the following:


To learn how to write the UDF, I looked into the ANSYS UDF MANUAL and I found a code...
Forum: FLUENT May 2, 2024, 19:46
Replies: 0
Views: 52
Posted By JoshLaz
Ansys Fluent Non-Dimensionalizing CL By Wrong Area?

Hello,

So I'm a very new user, I'm trying to self teach so please excuse my ignorance if I'm making particularly dumb/un-informed statements.

I've run Ansys Fluent for a wing, I used the...
Forum: FLUENT May 2, 2024, 17:43
Replies: 0
Views: 55
Posted By antosan
F_AREA in UDF leads to segmentation fault

Hello,

I need to calculate the area of all faces within a given domain. What I did is the following:


To learn how to write the UDF, I looked into the ANSYS UDF MANUAL and I found a code...
Forum: FLUENT May 2, 2024, 14:14
Replies: 2
Views: 76
Posted By Saku03
Smile Report exit mass flow rate of a species

Hello everyone, I'm simulating methane combustion in a furnace and I want mass flow rate of NOx (in g/s) at an outlet. I don't know how to report that.
Do I need to define a new function for that ?...
Forum: Fluent UDF and Scheme Programming May 2, 2024, 05:33
Replies: 3
Views: 548
Posted By mary24
Hi, may I know how do you solve it?

Hi, may I know how do you solve it?
Forum: Fluent UDF and Scheme Programming May 2, 2024, 02:01
Replies: 1
Views: 428
Posted By elasticdotventures
Attempting to do similar

👋🏻 Hi Alikashif, did you ever get your project working?
Forum: FLUENT May 1, 2024, 11:35
Replies: 1
Views: 63
Posted By LoGaL
So, I think you need to subtract the wing so as...

So, I think you need to subtract the wing so as to get the flow domain, but the wing solid domain must still exist. Then the two body together (flow and wing) will have a interface where the CHT...
Forum: FLUENT May 1, 2024, 06:32
Replies: 8
Views: 1,560
Posted By nahian_masud
Hi, Could you solve the problem? I am trying...

Hi,

Could you solve the problem? I am trying something like this.
Forum: FLUENT May 1, 2024, 06:32
Replies: 1
Views: 63
Posted By Amsbaoc
Conjugate Heat Transfer in Shell bodies

Hello, I am doing a structural optimization of a supersonic fighter jet wing for my end of degree thesis. To do so, I need to consider the effect of aerodynamic heating to assess thermal stresses in...
Forum: FLUENT May 1, 2024, 04:32
Replies: 0
Views: 64
Posted By azadaqil
Unhappy Encounter with CAD Importing Problem

I've used fluid flow (meshing with fluent) in Workbench 2024 R1. Using SpaceClaim as the platform to design my model. While using the Watertight Geometry workflow, I encountered a problem with...
Forum: Fluent UDF and Scheme Programming May 1, 2024, 03:59
Replies: 0
Views: 61
Posted By Chhotelal1234
Floting point expection after simulating case and data file

Dear expert,
could you please tell me why the floating point exceptional problem is occurring while I read the after-timesteps case and data file?
I am solving the 2D case with the UDF function...
Forum: FLUENT April 30, 2024, 18:45
Replies: 4
Views: 494
Posted By Arash_Fakharnezhad
Hi Fabio, Thank you for your reply. An...

Hi Fabio,

Thank you for your reply.

An Ansys Employee replied to my question and I found that the UDF is actually only allowed for Pdf based combustion models. Here, I am using the species...
Forum: FLUENT April 30, 2024, 13:52
Replies: 0
Views: 59
Posted By fre20
Unexpected velocity profile

Hi all. I'm trying to do a validation with fluent, on methane combustion. In the attachments the mesh, temperature and velocity profiles are shown. The paper im comparing to is using a local...
Forum: FLUENT April 30, 2024, 13:36
Replies: 0
Views: 56
Posted By voidcrow
How to set up a semi-permeable interface?

I am attempting to simulate an alkaline water electrolyzer, which has a porous separator that is supposed to block the flow of gases (hydrogen, oxygen) but not the liquid solution (water + potassium...
Forum: FLUENT April 30, 2024, 05:23
Replies: 0
Views: 69
Posted By omar ennaya
Nusselt number in ansys fluent?

Hello everyone
I wanna calculate the nusselt number in ansys fluent for a triple pipe geometry, and i'm not sure about the right way to do that.
If someone know the correct steps to do.
Thanks in...
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