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Showing results 1 to 17 of 17 Search took 0.00 seconds. Search: Posts Made By: Far

Forum: FLUENT February 9, 2013, 08:42

Replies: 80 Turbulent Boundary condition, viscosity ratio and length scale Views: 14,999 Posted By Far results look good but convergence plot not. Init... results look good but convergence plot not. Init from inlet is ok.

Forum: FLUENT February 9, 2013, 04:42

Replies: 80 Turbulent Boundary condition, viscosity ratio and length scale Views: 14,999 Posted By Far 13 chords downstream with 70 deg inclination? I... 13 chords downstream with 70 deg inclination? I guess it is not enough... Can you show velocity and pressure contours?

Forum: FLUENT February 9, 2013, 04:22

Replies: 80 Turbulent Boundary condition, viscosity ratio and length scale Views: 14,999 Posted By Far You need good mesh in wake region. did you make... You need good mesh in wake region. did you make the domain extend study?

Forum: FLUENT October 30, 2012, 13:27

Replies: 80 Turbulent Boundary condition, viscosity ratio and length scale Views: 14,999 Posted By Far But there should not be error in mesh as I have... But there should not be error in mesh as I have used it for simulation in Fluent and shown in this thread.

Forum: FLUENT October 30, 2012, 10:03

Replies: 80 Turbulent Boundary condition, viscosity ratio and length scale Views: 14,999 Posted By Far This is because of meshing error which is not... This is because of meshing error which is not acceptable to fluent. Did you turn off the solid and vorfn blocks before exporting the mesh?

Forum: FLUENT October 30, 2012, 09:45

Replies: 80 Turbulent Boundary condition, viscosity ratio and length scale Views: 14,999 Posted By Far I am always ready to share the knowledge.... I am always ready to share the knowledge. https://dl.dropbox.com/u/68746918/ICEM_CFDOnline.rar By the way why file is giving error? are you using ICEM V14? You can directly read the .msh file in...

Forum: FLUENT October 22, 2012, 13:39

Replies: 80 Turbulent Boundary condition, viscosity ratio and length scale Views: 14,999 Posted By Far I would use density = 1.225 Kg/m3, V = 1 m/s ,... I would use density = 1.225 Kg/m3, V = 1 m/s , dia = 1 m and then viscosity = (1.225*1*1)/200. In this case stroul number is 0.22 approx and frequency will also be 0.22. Now I can decide the time...

Forum: FLUENT October 21, 2012, 11:42

Replies: 80 Turbulent Boundary condition, viscosity ratio and length scale Views: 14,999 Posted By Far yeah in most aspects it is better. But some... yeah in most aspects it is better. But some geometry functions in gambit are more powerful.

Forum: FLUENT October 21, 2012, 09:58

Replies: 80 Turbulent Boundary condition, viscosity ratio and length scale Views: 14,999 Posted By Far Yes ICEM files are ready to be used. You are not... Yes ICEM files are ready to be used. You are not able to open the case file becasue these are V 14 files and you are using older version. I am also attaching the .msh file which you should be able to...

Forum: FLUENT October 21, 2012, 04:11

Replies: 80 Turbulent Boundary condition, viscosity ratio and length scale Views: 14,999 Posted By Far Generally we do not apply the Mach number... Generally we do not apply the Mach number similarity when we are not interested in shock-wave interaction. So we must ensure the Reynolds number similarity. One more thing, in making such...

Forum: FLUENT October 20, 2012, 15:55

Replies: 80 Turbulent Boundary condition, viscosity ratio and length scale Views: 14,999 Posted By Far Velocity contours (results seem to be good)... ... Velocity contours (results seem to be good)... http://imageshack.us/a/img838/6923/2pngt.jpg http://imageshack.us/a/img37/6760/fluent800690.jpg ...

Forum: FLUENT October 20, 2012, 14:27

Replies: 80 Turbulent Boundary condition, viscosity ratio and length scale Views: 14,999 Posted By Far mesh,case, dat and ICEM files are attached here: ... mesh,case, dat and ICEM files are attached here: https://dl.dropbox.com/u/68746918/PS_2D_30Hx20H.zip 1. I would recommend SST-KW model 2. You should study the time step effects or do some...

Forum: FLUENT October 20, 2012, 13:32

Replies: 80 Turbulent Boundary condition, viscosity ratio and length scale Views: 14,999 Posted By Far If one is getting the good results with bad mesh... If one is getting the good results with bad mesh then he must the lucky one and atleast I cannot believe these results. In CFD one must first ensure the best practices instead of getting close to the...

Forum: FLUENT October 20, 2012, 13:00

Replies: 80 Turbulent Boundary condition, viscosity ratio and length scale Views: 14,999 Posted By Far What is the value of density and viscosity and... What is the value of density and viscosity and why you choose these values? How did you determine the time step size? Is it according to any method available in literature? Do you wanna try...

Forum: FLUENT October 20, 2012, 11:59

Replies: 80 Turbulent Boundary condition, viscosity ratio and length scale Views: 14,999 Posted By Far What do you mean by scaling the problem? What do you mean by scaling the problem?

Forum: FLUENT October 20, 2012, 11:40

Replies: 80 Turbulent Boundary condition, viscosity ratio and length scale Views: 14,999 Posted By Far Can you tell me the following info: 1.... Can you tell me the following info: 1. Reynolds number 2. Time step and no of time steps and how you have determined them? 3. How you are making the time-average Cd and Cl. How many time...

Forum: FLUENT October 20, 2012, 11:14

Replies: 80 Turbulent Boundary condition, viscosity ratio and length scale Views: 14,999 Posted By Far I think using the hexa mesh will solve your... I think using the hexa mesh will solve your problem. What do you think?

Showing results 1 to 17 of 17

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