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Showing results 1 to 20 of 20 Search took 0.00 seconds. Search: Posts Made By: Arti

Forum: CFX May 28, 2009, 11:39

Replies: 53 Need help with CFX simulation for airfoil Views: 11,157 Posted By Arti As i was saying. Extrude (or use the sweep... As i was saying. Extrude (or use the sweep function in Gambit) your 2D mesh into 3D and u would have solve your problem. Cant be simpler than that.

Forum: CFX May 28, 2009, 03:35

Replies: 53 Need help with CFX simulation for airfoil Views: 11,157 Posted By Arti Please read a few post back. About how to... Please read a few post back. About how to simulate a 2D effect for Airfoil. There is NO actual 2D simulation for CFX u will have to extrude it to 3D.

Forum: CFX May 22, 2009, 13:00

Replies: 53 Need help with CFX simulation for airfoil Views: 11,157 Posted By Arti ah I get it now. Thanks for the information. ... ah I get it now. Thanks for the information. Was wondering does setting a specific boundary condition work for all situations for example in an airfoil simulation can setting the boundary...

Forum: CFX May 21, 2009, 02:41

Replies: 53 Need help with CFX simulation for airfoil Views: 11,157 Posted By Arti hmmm Not sure whats wrong with my software.. I... hmmm Not sure whats wrong with my software.. I can now get a better grid size with the required wall distance than those i got before. But just to ensure im going the right way. I hope you can...

Forum: CFX May 20, 2009, 11:11

Replies: 53 Need help with CFX simulation for airfoil Views: 11,157 Posted By Arti Same way. You can (1) use the function... Same way. You can (1) use the function calculator to find the average velocity on any wall, (2) plot a chart of x and any velocity(u need to draw a line or poly line around the wall to do that). ...

Forum: CFX May 20, 2009, 08:56

Replies: 53 Need help with CFX simulation for airfoil Views: 11,157 Posted By Arti U can use the function calculator to find those... U can use the function calculator to find those values around the airfoil.

Forum: CFX May 20, 2009, 07:43

Replies: 53 Need help with CFX simulation for airfoil Views: 11,157 Posted By Arti I did a mesh test for 50K 60K and 80K plus cells... I did a mesh test for 50K 60K and 80K plus cells of my setup. Am now using the 80K cell as my choice. Am trying to do the lift and drag curves to confirm it with the experimental results i have. I...

Forum: CFX May 19, 2009, 11:55

Replies: 53 Need help with CFX simulation for airfoil Views: 11,157 Posted By Arti Is there a way to adject the Under relaxation... Is there a way to adject the Under relaxation factor for continuity and momentum in Cfx 11? Have a slight problem with one AOA. Angles from all the way 10 degrees were ok but at 3 degree it fails to...

Forum: CFX May 19, 2009, 06:18

Replies: 53 Need help with CFX simulation for airfoil Views: 11,157 Posted By Arti My values for drag has reduced alot after i... My values for drag has reduced alot after i applied the method of rotation you told me. The Y+ is still at 1, hope its good enough for ke models. Guess i will try the transitional model after the kw...

Forum: CFX May 18, 2009, 13:06

Replies: 53 Need help with CFX simulation for airfoil Views: 11,157 Posted By Arti LSC I suggest u look at the help files for the... LSC I suggest u look at the help files for the reference pressure. Its under "Setting a Reference Pressure". That will help u determine your pressure datum. Try to make the first height as thin as...

Forum: CFX May 15, 2009, 23:41

Replies: 53 Need help with CFX simulation for airfoil Views: 11,157 Posted By Arti Thanks alot for the tip. It works great much... Thanks alot for the tip. It works great much better than setting the velocity direction using sin and cos. Now to troubleshoot it. Not getting the values i want can seem to find a nice...

Forum: CFX May 15, 2009, 12:01

Replies: 53 Need help with CFX simulation for airfoil Views: 11,157 Posted By Arti Ok im getting a hang of it now. Is there a... Ok im getting a hang of it now. Is there a guide on how to rotate the computational domain so that i can simulate the angle of attack. I tried changing the flow using Velocity*sin(angle in...

Forum: CFX May 15, 2009, 01:41

Replies: 53 Need help with CFX simulation for airfoil Views: 11,157 Posted By Arti Yes im using a velocity inlet. I understand... Yes im using a velocity inlet. I understand what you mean by the convergence and curve refining. Thanks for the guide. Now im going to to see if the pressure values are what it supposed to be...

Forum: CFX May 15, 2009, 00:47

Replies: 53 Need help with CFX simulation for airfoil Views: 11,157 Posted By Arti Thanks alot for the help so far. Am learning much... Thanks alot for the help so far. Am learning much more now, smoothing out all the little details till i get a clearer picture of the software. The problem i have now is only the jagged pressure...

Forum: CFX May 14, 2009, 21:24

Replies: 53 Need help with CFX simulation for airfoil Views: 11,157 Posted By Arti Was wondering if i should split the airfoil into... Was wondering if i should split the airfoil into 2 walls. And find the Forces in the y direction and x direction seperately, then add then together to find the lift and drag forces. So i can monitor...

Forum: CFX May 13, 2009, 05:23

Replies: 53 Need help with CFX simulation for airfoil Views: 11,157 Posted By Arti I dont think so. I dont think so.

Forum: CFX May 12, 2009, 12:22

Replies: 53 Need help with CFX simulation for airfoil Views: 11,157 Posted By Arti Oh ok i get what you mean Thanks. I would... Oh ok i get what you mean Thanks. I would like to ask a question whihc may benefit some users. Its about timescales. I usually use the automatic timescale for simulation. But im curious about...

Forum: CFX May 12, 2009, 03:38

Replies: 53 Need help with CFX simulation for airfoil Views: 11,157 Posted By Arti U are confusing me =). The gradient is 0 which i... U are confusing me =). The gradient is 0 which i assume means that there the flow in the domain does not fluctuate much. And isn't setting the boundary determining where the flow goes in from and out...

Forum: CFX May 11, 2009, 11:15

Replies: 53 Need help with CFX simulation for airfoil Views: 11,157 Posted By Arti Thanks for the suggestion. I tried changing the... Thanks for the suggestion. I tried changing the output pressure to a specific pressure and that solved the problem. Weird. I guess there are a few settings that i may have place wrongly. After...

Forum: CFX May 9, 2009, 11:20

Replies: 53 Need help with CFX simulation for airfoil Views: 11,157 Posted By Arti Need help with CFX simulation for airfoil Ok im now into using Ansys CFX solver after school they decided to change what we are using. I am running into a problem with defining my outlet boundary condition . The case is flow over an airfoil....

Showing results 1 to 20 of 20

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