CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums

Search Results

Register Blogs Community New Posts Updated Threads Search

Showing results 1 to 8 of 8
Search took 0.00 seconds. Search: Posts Made By: Blanco
Forum: CFX July 7, 2014, 09:35
Replies: 32
Views: 3,422
Posted By Blanco
Yes the outlet is correctly set if you have a...

Yes the outlet is correctly set if you have a pipe that is connected to the ambient without any basin. If you have your liquid that is coming out from the pipe like a waterfall than it is ok. If you...
Forum: CFX July 7, 2014, 06:13
Replies: 32
Views: 3,422
Posted By Blanco
From my understandings you have imposed a...

From my understandings you have imposed a pressure on your opening inlet boundaries and you have used that b.c. to pressurize the fluid "as if" the gravity was turned on. If I think of a static fluid...
Forum: CFX July 6, 2014, 03:55
Replies: 32
Views: 3,422
Posted By Blanco
Ok for the convergence, btw it s really fast. Is...

Ok for the convergence, btw it s really fast. Is the velocity you get at the outlet consistent with your experimental results?
Forum: CFX July 6, 2014, 03:17
Replies: 32
Views: 3,422
Posted By Blanco
Ok thanks for the clarification. The separation...

Ok thanks for the clarification. The separation is ok, it is physical because of the low pressure, but seeing the results you really need a cavitation model because cavitation will happen. Actual...
Forum: CFX July 5, 2014, 12:23
Replies: 32
Views: 3,422
Posted By Blanco
Wait...just to be sure I understood right...in...

Wait...just to be sure I understood right...in your plot I see ref. Pressure 9.8 kPa and then -55 Pa in the figure...so you get 9.75 kPa minum absolute pressure, not -437 kPa, is this correct? if...
Forum: CFX July 5, 2014, 10:51
Replies: 32
Views: 3,422
Posted By Blanco
Well, if pressure is -437 kPa then it almost...

Well, if pressure is -437 kPa then it almost definitely cavitate as it has been said. The boundary layer separation will be present also in the real Fluid behavior, if everything is correct in the...
Forum: CFX July 5, 2014, 08:06
Replies: 32
Views: 3,422
Posted By Blanco
Ok, yes you have to refine the mesh in the...

Ok, yes you have to refine the mesh in the separation zone and just ahead/after it, to improve the definition of the physical domain and so improve the solution. Btw, what is the minimum absolute...
Forum: CFX July 5, 2014, 05:59
Replies: 32
Views: 3,422
Posted By Blanco
Hi,what is the numerical setup? and what about...

Hi,what is the numerical setup? and what about turbulence model, mesh in the branch pipe? you are obtaining 40 m/s maximum velocity in the connection, I think you have boundary layer separation...
Showing results 1 to 8 of 8

 
Forum Jump

All times are GMT -4. The time now is 08:27.

Contact Us - CFD Online - Privacy Statement - Top