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Showing results 1 to 12 of 12 Search took 0.00 seconds. Search: Posts Made By: ghorrocks

Forum: CFX September 15, 2013, 06:53

Replies: 34 a simulation with rotation and vibration Views: 4,650 Posted By ghorrocks I say again - This is a very complex model and I... I say again - This is a very complex model and I do not have time to debug it for you. But I can see in your contours that it looks very blocky. This suggests you have a very coarse mesh. You will...

Forum: CFX September 11, 2013, 18:42

Replies: 34 a simulation with rotation and vibration Views: 4,650 Posted By ghorrocks This is a very complex model and I do not have... This is a very complex model and I do not have time to debug it for you. All I can recommend is to build the simulation up piece by piece. Can you run a cavitation model without electrics,...

Forum: CFX September 11, 2013, 06:09

Replies: 34 a simulation with rotation and vibration Views: 4,650 Posted By ghorrocks This error says you missed a fundamental part of... This error says you missed a fundamental part of the multiphase setup -but I cannot tell exactly which. I would check the multiphase setup again. You could also post the output file with the CCL...

Forum: CFX September 8, 2013, 06:26

Replies: 34 a simulation with rotation and vibration Views: 4,650 Posted By ghorrocks I have nothing to add beyond what I have already... I have nothing to add beyond what I have already said. Until you consider my previous suggestions I see no point making more suggestions.

Forum: CFX September 4, 2013, 06:04

Replies: 34 a simulation with rotation and vibration Views: 4,650 Posted By ghorrocks I have never used the maxwell solver in CFX so... I have never used the maxwell solver in CFX so cannot help you with details. If the variable you are looking for does not appear to exist then create it as a user variable. Your time step size...

Forum: CFX September 4, 2013, 03:06

Replies: 34 a simulation with rotation and vibration Views: 4,650 Posted By ghorrocks So if it does not want to do this using the... So if it does not want to do this using the maxwell equation solver, can't you put a simple diffusive additional variable on to represent electric potential with the diffusivity set as the...

Forum: CFX September 3, 2013, 19:01

Replies: 34 a simulation with rotation and vibration Views: 4,650 Posted By ghorrocks Is the electric field model just to get the... Is the electric field model just to get the current flowing from anode to cathode? In other words, there is just a variable resistance in the fluid section, and you only care about the current flow?...

Forum: CFX September 2, 2013, 18:24

Replies: 34 a simulation with rotation and vibration Views: 4,650 Posted By ghorrocks This is looking like a very complex model. Have... This is looking like a very complex model. Have you done simulations where you simulate these effects by themselves - that is a cavitation only model, a moving mesh only model, and an electric field...

Forum: CFX September 2, 2013, 07:50

Replies: 34 a simulation with rotation and vibration Views: 4,650 Posted By ghorrocks How is the electric component coupled to the... How is the electric component coupled to the flow? If the fluid is a constant resistivity then the current flow will just be related to the tube position and there is no need for CFD.

Forum: CFX September 1, 2013, 18:36

Replies: 34 a simulation with rotation and vibration Views: 4,650 Posted By ghorrocks What type of vibration? In which direction? Is it... What type of vibration? In which direction? Is it coupled to the flow or imposed?

Forum: CFX September 1, 2013, 05:54

Replies: 34 a simulation with rotation and vibration Views: 4,650 Posted By ghorrocks I do not understand your question, but you... I do not understand your question, but you describe a number of methods to model the motion (immersed solid, moving mesh) and they are all useful for some cases. But whether it is appropriate for...

Forum: CFX August 30, 2013, 07:02

Replies: 34 a simulation with rotation and vibration Views: 4,650 Posted By ghorrocks 1) I have no idea if your simulation is right. I... 1) I have no idea if your simulation is right. I do not understand what you are modelling. 2) What does the voltage do? Why do you want to model it? 3) If the vibration is known in advance then use...

Showing results 1 to 12 of 12

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