Search Results

User Name Remember Me Password

Showing results 1 to 9 of 9 Search took 0.00 seconds. Search: Posts Made By: ghorrocks

Forum: CFX January 10, 2019, 17:13

Replies: 28 radiation in CFX Views: 9,165 Posted By ghorrocks Setting up radiation is very different between... Setting up radiation is very different between CFX and Fluent. So if you want help on radiation modelling in Fluent then post on the Fluent forum.

Forum: CFX May 17, 2013, 19:12

Replies: 28 radiation in CFX Views: 9,165 Posted By ghorrocks Almost all of those parameters are irrelevant.... Almost all of those parameters are irrelevant. Some require values just to keep the solver happy. I will leave it as an exercise for you to work this out. If you are not sure whether a parameter is...

Forum: CFX May 17, 2013, 09:20

Replies: 28 radiation in CFX Views: 9,165 Posted By ghorrocks The tab you are showing is for a fluid. You need... The tab you are showing is for a fluid. You need to make it a solid. In the radiation properties make absorption coeff=0. Now it does not absorb, that is it is transparent.

Forum: CFX May 17, 2013, 07:30

Replies: 28 radiation in CFX Views: 9,165 Posted By ghorrocks My posts tell you exactly how to do it. Model it... My posts tell you exactly how to do it. Model it as a transparent solid with an almost zero thermal conductivity.

Forum: CFX May 7, 2013, 19:25

Replies: 28 radiation in CFX Views: 9,165 Posted By ghorrocks I assume then you know the radiation intensity,... I assume then you know the radiation intensity, wavelengths and/or directions at the outside of the glass envelope. But then do you know the radiation impinging on the absorber tube? If yes then this...

Forum: CFX May 5, 2013, 18:47

Replies: 28 radiation in CFX Views: 9,165 Posted By ghorrocks Do you need to model the outer envelope and... Do you need to model the outer envelope and vacuum space at all? Can the radiation heat load be just applied as a heat source on the outer face of the absorber tube? In fact, what are you trying...

Forum: CFX May 5, 2013, 07:45

Replies: 28 radiation in CFX Views: 9,165 Posted By ghorrocks You always start from the physics you want to... You always start from the physics you want to model. Does this mean you want no thermally conducted heat, but radiation heat condition is taking place? Anything else?

Forum: CFX April 28, 2013, 18:51

Replies: 28 radiation in CFX Views: 9,165 Posted By ghorrocks CFX might not like zero conductivity. Then just... CFX might not like zero conductivity. Then just set a small number - and then do a sensitivity analysis to check that your number is small enough to be effectively zero. Before jumping into...

Forum: CFX April 27, 2013, 07:06

Replies: 28 radiation in CFX Views: 9,165 Posted By ghorrocks Wow, a post of mine from 7.5 years ago. I suspect... Wow, a post of mine from 7.5 years ago. I suspect I had a few less grey hairs back then. It depends what you want to do for the vacuum space. If you want to model the thin gas which is present...

Showing results 1 to 9 of 9

Forum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home General Forums     Main CFD Forum     System Analysis     Structural Mechanics     Electromagnetics     CFD Freelancers     Hardware     Lounge Software User Forums     ANSYS         CFX         FLUENT             Fluent Multiphase             Fluent UDF and Scheme Programming         ANSYS Meshing & Geometry     Autodesk Simulation CFD     AVL FIRE     COMSOL     CONVERGE     Fidelity CFD     FloEFD, FloWorks & FloTHERM     FLOW-3D     OpenFOAM         OpenFOAM News & Announcements             OpenFOAM Announcements from ESI-OpenCFD             OpenFOAM Announcements from OpenFOAM Foundation             OpenFOAM Announcements from Other Sources         OpenFOAM Installation         OpenFOAM Meshing & Mesh Conversion         OpenFOAM Pre-Processing         OpenFOAM Running, Solving & CFD         OpenFOAM Post-Processing         OpenFOAM Programming & Development         OpenFOAM Verification & Validation         OpenFOAM Community Contributions             OpenFOAM CC Toolkits for Fluid-Structure Interaction         OpenFOAM Journal         OpenFOAM Bugs     Phoenics     REEF3D         REEF3D News & Announcements     Siemens         STAR-CCM+         STAR-CD     SU2         SU2 News & Announcements         SU2 Installation         SU2 Shape Design Mesh Generation & Pre-Processing Software     ANSA     enGrid     GridPro     Pointwise & Gridgen Visualization & Post-Processing Software     EnSight     FieldView     ParaView     Tecplot Special Topics     Mesh Generation & Pre-Processing     Visualization & Post-Processing CFD Online Community     Site News & Announcements     Site Help, Feedback & Discussions     CFD-Wiki