ANGULAR VELOCITY FAN
Answers
-
c
0 -
-
thanks Prakash, if my intensity are -314.152 rad/s which fields i have to fill?
0 -
Hi,
You need to define a curve for this.. Go to XY plots>Curve Editor and then make curve as foll.
If constant angular velocity at t=0
x y
0.0 -314.152
0.1 -314.52
If angular velocity is rising with time:
x y
0.0 0.0
0.1 -314.52
For direction i.e XX, YY, ZZ you can use either global coordinate system or local coordinate system
0 -
-
Yes this is condition where you will have constant velocity right from starting i.e t-=0
If you increase the velocity with time use 2nd curve I have shown above
0 -
I follow all the steps but the angular velocity doesn't work, i tryed sono times to change the parameters but i failed every time.
0 -
Can you elaborate more on this like are you seeing no velocity in animation files?
Check energy plots also.
Can you share the model file
0 -
Altair Forum User said:
It seems You have applied the IMPVEL for rotational to each node.
Try applying it on the master node of the blades centre.
0 -
Also use a skew and check if that helps
0 -
hi, it's not correct.
you rotate all nodes.
you should rotate onle reference node in circle.
and if you use BC's manager you should check it in model brouser (load container). i have always trouble with them it don't create curves to container.
i hope it will help you.
0 -
Thank you all, your help is very usefull. There is a tutorial in altair library?
0 -
look attentive to the @Prakash Pagadala profile=) you will find i hope=)
0 -
I think this example on RADIOSS help will be self-explanatory for imposed velocity
RD-E: 5501 Fan Blade Rotation Initialization
0 -
Altair Forum User said:
RD-E: 5501 Fan Blade Rotation Initialization
thank you all, i have done it !
0 -
-
Yes, please.
0 -
thank you, i send you 2 model, one with rigid and one with constraints applied directly on the blades.
0 -
Thank you for the files, but I didn't check at my end yet.
Looks like the problem is coming from the boundary conditions. Can you please the same?
I will check the file and I will reply ASAP!!
0 -
Thank you a lot Prakash, yes i think the problems are in boundary condition and in imp. Velocity (i deleted it on the model i send you). Can you add in the model the angular velocity (314.152 rad/s)?
0 -
i supposed that the effect on the latest picture maybe came from centrifugal forces. what do you think Prakash ?
0 -
-
Hi,
Share 0001.out files and 0001. rad file also
0 -
-
I am glad that you are able to solve it.
Do you see A0## files in your working directory?
0 -
Hi,
Please check the folder , there you will see A001 and A002 files. These are animation and needs to be opened in Hyperview
T01 files represent the time history output. This needs to be opened in hypergraph
0 -
-
HI,
I think you have a h3d file in your folder. Due to (italic A) it couldn't open in HV.
Can you rename the result file to a different name and check if that helps?
0 -
thank you Prakash, i try. ( it's possible that the errore came from control card ?)
0 -