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Search took 0.00 seconds. Search: Posts Made By: mak86
Forum: CFX December 22, 2011, 11:30
Replies: 30
Views: 8,124
Posted By mak86
I did this more than 10 times but as soon as I...

I did this more than 10 times but as soon as I close CFX-Pre it changes again
Forum: CFX December 22, 2011, 11:23
Replies: 30
Views: 8,124
Posted By mak86
Here it is.

Here it is.
Forum: CFX December 22, 2011, 10:29
Replies: 30
Views: 8,124
Posted By mak86
Well things are getting stranger...In the...

Well things are getting stranger...In the Passages and Alignment section the Passages per Mesh, Passages to Model and Passages per 360 change automatically to 27,27 and 108!
Every time I change them...
Forum: CFX December 20, 2011, 14:33
Replies: 30
Views: 8,124
Posted By mak86
First of all, thank you all. Decreasing the...

First of all, thank you all.

Decreasing the mesh size did not influence the torque.
Extending the domain at downstream increased the backflow area to 90 percent.




Omega equals -1000rpm...
Forum: CFX December 20, 2011, 05:09
Replies: 30
Views: 8,124
Posted By mak86
Here it is.

Here it is.
Forum: CFX December 20, 2011, 04:10
Replies: 30
Views: 8,124
Posted By mak86
1.Static pressure is zero. 2. That is where hub...

1.Static pressure is zero.
2. That is where hub ends.
Forum: CFX December 20, 2011, 01:10
Replies: 30
Views: 8,124
Posted By mak86
@ghorrocks: I decreased the mesh size to 0.003...

@ghorrocks: I decreased the mesh size to 0.003 but no lock... it is still negative.
and the solver manager shows this for every step in the out file.
...
Forum: CFX December 19, 2011, 04:36
Replies: 30
Views: 8,124
Posted By mak86
1.Unfortunately not. 2.I know that, the...

1.Unfortunately not.
2.I know that, the rotation direction is correct but the interesting point is that even changing it will not lead into a positive magnitude.
3.I have specified mass flow rate...
Forum: CFX December 19, 2011, 02:00
Replies: 30
Views: 8,124
Posted By mak86
Thank you both. The rotor speed is -1000 rpm,...

Thank you both.
The rotor speed is -1000 rpm, the input BC is a mass flow of 250 kg/s and the output BC is static pressure of 1 atm.
The results are attached.
Forum: CFX December 18, 2011, 12:10
Replies: 30
Views: 8,124
Posted By mak86
Negative power and torque(Axial Turbine analysis)

Dear all,
I have modeled an axial turbine in CFX. I used the macro calculator to get the torque and power and it gives me negative torque and power! What does it mean?
If a negative torque is just...
Showing results 1 to 10 of 10

 
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