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Journal bearing
Posted Aug 12, 2015, 5:31 a.m. EDT Computational Fluid Dynamics (CFD) Version 4.4 2 Replies
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Hai guys i am new to this software. I solved one journal bearing problem by using this comsol software, But in result i could't able to identify the pressure value at particular node. So if any one known about how to know pressure distribution at particular node in quad mapped mesh please inform me.
2 Replies Last Post Aug 14, 2015, 2:10 a.m. EDT
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Posted:
9 years ago
Hi
From the way I read you, I understand you are used to the traditional FEM programmes for which the MESH is the beginning of everything.
With COMSOL they have managed to set the mesh elements and the nodes back to where they belong: mathematical elements used to discretize the geometry such to solve the Physics expressed by their respective differential equations.
In COMSOL you apply the Physics to the Geometrical Entities: Domains and Boundaries (only exceptionally on lower order entities) and you read out your Results correspondingly, mostly as integral values, or averages over these two higher order Entities.
If you absolutely want to get a dependent value at a "Point" I suggest that you add a point at that location, then you are sure the mesher will have a node there, or simpler that you use the Results - Data-Set - Cut plane, or line, or point ... or you define an integration over a "point" which is the COMSOL way to get the results of a variable "at" an existing Geometrical Point.
--
Good luck
Ivar
From the way I read you, I understand you are used to the traditional FEM programmes for which the MESH is the beginning of everything.
With COMSOL they have managed to set the mesh elements and the nodes back to where they belong: mathematical elements used to discretize the geometry such to solve the Physics expressed by their respective differential equations.
In COMSOL you apply the Physics to the Geometrical Entities: Domains and Boundaries (only exceptionally on lower order entities) and you read out your Results correspondingly, mostly as integral values, or averages over these two higher order Entities.
If you absolutely want to get a dependent value at a "Point" I suggest that you add a point at that location, then you are sure the mesher will have a node there, or simpler that you use the Results - Data-Set - Cut plane, or line, or point ... or you define an integration over a "point" which is the COMSOL way to get the results of a variable "at" an existing Geometrical Point.
--
Good luck
Ivar
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Posted:
9 years ago
Hai Sir,
Sorry for disturbing you sir, still i didn't understanding, I mean i need to understand that how the pressure is distributed over the geometry,Like I wanted to know that which pressure is acting on which node. So i am requesting you that if it is possible please give me a complete information.
Sorry for disturbing you sir, still i didn't understanding, I mean i need to understand that how the pressure is distributed over the geometry,Like I wanted to know that which pressure is acting on which node. So i am requesting you that if it is possible please give me a complete information.