Hello, i'm trying to simulate flow boiling and bubble departure in ansys fluent. Do i need to write an UDF?

01 January 1970 1 4K Report

I'm using VOF model. I've tried it without UDF but as i make contact angle less than 90 deg, i'm getting very absurd results. Any help?

Nithin Panicker

You should be able to simulate boiling using FLUENT,

http://www4vip.inl.gov/relap5/rius/yellowstone/basu.pdf

or try the software called TRANSAT, which is custom made for problems like boiling.

Badges
Science topic

More Nitesh Kumar's questions See All

How to simulate nucleate boiling in fluent?

Hi, I'm trying to simulate nucleate boiling for 2D channel without an initial bubble. I'm using VOF model. Can anyone help me with this?

05 June 2016 8,257 7 View

How to define an anisotropic material with asymmetric elastic compliance/stiffness matrix in ANSYS APDL?

I need to model an anisotropic material in which the Poisson's ratio ν_12 ≠ ν_21 and so on. Therefore, the elastic compliance matrix wouldn't be a symmetric one. In ANSYS APDL, for TB,ANEL...

09 August 2024 5,048 2 View

Tangential stiffness option in ansys workbench?

I am not able to find how I can provide tangential stiffness in ansys workbench The normal stiffness option is there. But how I can enter tangential stiffness I have read somewhere tangential...

29 July 2024 2,032 2 View

How to Import Blade geometry from CAD file in ANSYS design modeler?

Hello. I have the geometry of a blade in CAD file (stp) and I want to prepare the blade for meshing with turboGrid. I must import this file into designModeler and then transfer to the...

27 July 2024 356 3 View

Problem with Two-phase simulation?

Hello; I am conducting a CFD study on two-phase flow in a separator, utilizing refrigerant as the working fluid. For this study, I have implemented pressure inlet and pressure outlet boundary...

25 July 2024 2,309 5 View

Why my simulation results are showing too much deformation compared to experimental result?

I performed fea on tensile dog bone specimen using ANSYS static structural and also tried using ANSYS explicit dynamics. In experimental result the load is 500 N and deformation is 0.6 mm...

13 July 2024 3,631 4 View

How to introduce on fluent the optical loss of the wall due to the reflection of the plate towards the environment ?

"When solar irradiation reaches a surface, some of it is absorbed while the rest is reflected. Part of the light absorbed by the surface transforms into heat and increases the module's...

13 July 2024 8,621 5 View

Can I transfer the 3D file from Matlab to Ansys or Abaqus?

I have a 3D output in the figure section of Matlab, does anyone know a way to transfer it to Abaqus or Ansys? Or in what format should I save it so that these analysis software can analyze it?

09 July 2024 9,226 3 View

How to add a mass source term in the continuity equation?

Hi, I am trying to model laser cladding in Ansys FLUENT. There are two phase: one is base metal surrounded by an inert gas (shown in the image). I want to add a cladding layer of the same metal....

07 July 2024 1,182 8 View

Why i can't get access to isosurface in fluent?

hello everyone i get into fuent and i select the result icone then i try to create an isosurface but the button is gray so i can't choose it. what's the problem? any suggestion.

03 July 2024 5,418 4 View

How to solve the question of ansys fluent?

Regarding the system coupling issue where the update of the solution component fails, the system coupling update for fluid flow (Fluent) triggered an exception: "Update Solution Failed."

30 June 2024 7,894 1 View