Need Help With Gambit: Get Expert Advice from Laura

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Discussion Overview

The discussion revolves around using Gambit for various projects related to fluid dynamics, specifically focusing on creating geometries such as cylinders, spheres, and nozzles for industrial air and vapor flow applications. Participants seek guidance on meshing techniques and geometry construction within the software.

Discussion Character

  • Technical explanation
  • Homework-related
  • Debate/contested

Main Points Raised

  • Laura describes her project involving a cylinder with a sphere inside and expresses difficulty in generating a mesh without including the sphere.
  • One participant suggests that the axi-symmetry of the cylinder and sphere could simplify the process by allowing the use of an axisymmetric boundary.
  • A different participant mentions the importance of splitting the geometry to facilitate the meshing process.
  • Another user, Mayank Pawar, requests help with creating a blade for a combustion swirler in Gambit.
  • There are inquiries about constructing a 3D nozzle, with suggestions to start with a 2D nozzle as a simpler exercise.
  • A participant raises a question about the units used in Gambit and Fluent, particularly in relation to importing geometry from PRO-E.

Areas of Agreement / Disagreement

The discussion includes multiple competing views on how to approach geometry construction and meshing in Gambit, with no consensus reached on the best method for specific projects.

Contextual Notes

Participants express varying levels of experience with Gambit, indicating that some may be beginners while others offer more advanced suggestions. There is also uncertainty regarding the units used in the software, which may affect the import process from other applications.

Who May Find This Useful

This discussion may be useful for students and professionals working on fluid dynamics projects using Gambit and Fluent, particularly those seeking practical advice on geometry construction and meshing techniques.

0308072p
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Im trying to do my final year project on gambit which is related to industrial air and vapour flow. Technically i have to create a cylinder and put a sphere at the middle of the cylinder and eventually generate a mash without being being able to generate the mash of the sphere. its been over 2 weeks I am stuck at this point. I did most of the tutorials but still can't find anything similar to my problem. Just wondering if u would be kind enough to tell me brifly, how to divide a volume or may be few links to tutorials or documentation that might help.
thank you very much in advance.
Laura
 
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The nice thing about a cylinder and a sphere is that thy are both axi-symmetrical which might help if you define one border as "axis" just draw a box with a semicircle on the bottom.
 
I m beginner of Gambit and Fluent. please suggest me how to construct 3D nozzle in Gambit.
 
i am making a swirler in gambit but i can't make a blade, i am working on the project of modelling of combustion swirler. can anyone help me how to make a balde in gambit & to create swirler.
mayank pawar
 
0308072p said:
Im trying to do my final year project on gambit which is related to industrial air and vapour flow. Technically i have to create a cylinder and put a sphere at the middle of the cylinder and eventually generate a mash without being being able to generate the mash of the sphere. its been over 2 weeks I am stuck at this point. I did most of the tutorials but still can't find anything similar to my problem. Just wondering if u would be kind enough to tell me brifly, how to divide a volume or may be few links to tutorials or documentation that might help.
thank you very much in advance.
Laura

I think you must split your geometry in the middle. That's will make meshing process easier. Split and mesh. you even can use axisymmetric boundary as described by jaap
 
tunzawcn said:
I m beginner of Gambit and Fluent. please suggest me how to construct 3D nozzle in Gambit.

Nozzle, 3 or 2d is easiest geometry to construct. As an exercise, try to construct 2d mesh nozzle. If you can, continue with 2d geometry, then rotate it 180 deg.
 
I was wondering if anyone knew what units GAMBIT and FLUENT uses? I am using PRO-E to draw geometry and then import it into gambit to create a mesh, what units does gambit import it in as? :frown:

Thanks
 

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