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

Forum: CFX December 3, 2018, 02:41

Replies: 19 Floating Point exception "overflow" error in Oil inject twin screw compressor Views: 1,095 Posted By Rajaero Hello Glenn, Twin-mesh will create a dynamic... Hello Glenn, Twin-mesh will create a dynamic structural mesh for screw rotors. In cfx we need to read the twin-mesh grids by "Mesh read" and "Junction box routine". I will use expression method to...

Forum: CFX December 2, 2018, 23:02

Replies: 19 Floating Point exception "overflow" error in Oil inject twin screw compressor Views: 1,095 Posted By Rajaero Hello Guys, I will follow your suggestions... Hello Guys, I will follow your suggestions about Time step size and Max coefficient loop. I will let you know if it worked. Problem with Computation time: I am using 19 cores (IBM local parallel)...

Forum: CFX December 2, 2018, 22:49

Replies: 19 Floating Point exception "overflow" error in Oil inject twin screw compressor Views: 1,095 Posted By Rajaero Thanks gert-Jan, Urosgrivic, Glenn I would like... Thanks gert-Jan, Urosgrivic, Glenn I would like to thank for your suggestions. I will run my case with coeff loop 10 and small time step size. Unfortunately Twin-mesh (mesh generation tool for...

Forum: CFX November 29, 2018, 21:41

Replies: 19 Floating Point exception "overflow" error in Oil inject twin screw compressor Views: 1,095 Posted By Rajaero Thanks Gert-Jan, is the oil only meant for... Thanks Gert-Jan, is the oil only meant for lubricant, or is the twin screw used as multiphase pump with significant amounts of oil? 1.Oil is used to cool the air temperature during compression...

Forum: CFX November 29, 2018, 21:31

Replies: 19 Floating Point exception "overflow" error in Oil inject twin screw compressor Views: 1,095 Posted By Rajaero Thanks Urosgrivc, Actually i am using following... Thanks Urosgrivc, Actually i am using following expression method for time step size, TMangleStepR1 1[degree] TMrotationalSpeedR1 3000[rev/min] TMtimestep ...

Forum: CFX November 28, 2018, 19:31

Replies: 19 Floating Point exception "overflow" error in Oil inject twin screw compressor Views: 1,095 Posted By Rajaero Thanks Glenn, I will follow your suggestions... Thanks Glenn, I will follow your suggestions and let you know. if you have any other suggestions please tell me. Thanks...

Forum: CFX November 28, 2018, 19:27

Replies: 19 Floating Point exception "overflow" error in Oil inject twin screw compressor Views: 1,095 Posted By Rajaero Thanks Gert-jan, I also tried with second order... Thanks Gert-jan, I also tried with second order transient for single phase and multiphase. Now i am running with homogeneous free surface model. I also tried with different amount of oil (20...

Forum: CFX November 28, 2018, 03:52

Replies: 19 Floating Point exception "overflow" error in Oil inject twin screw compressor Views: 1,095 Posted By Rajaero Thanks Gert-Jan I tried to run the case with... Thanks Gert-Jan I tried to run the case with single phase (air) (assumed as dry screw compressor) . It worked fine. I solved up to 180 time step (half cycle) with first order ( transient,...

Forum: CFX November 28, 2018, 01:10

Replies: 19 Floating Point exception "overflow" error in Oil inject twin screw compressor Views: 1,095 Posted By Rajaero Floating Point exception "overflow" error in Oil inject twin screw compressor Hello Guys, I am working on transient multi-phase simulation of Oil inject twin screw compressor (rotors clearance 0.036 mm) by Twin-mesh and CFX. I am getting "overflow" error at 35th and 40th ...

Showing results 1 to 9 of 9

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