CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > Siemens > STAR-CCM+

Which Pressure Drop should be used for radial blower?

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Search this Thread Display Modes
Old   October 30, 2016, 05:02
Exclamation Which Pressure Drop should be used for radial blower?
Senior Member
Chaotic Water
Join Date: Jul 2012
Location: Elgrin Fau
Posts: 372
Rep Power: 15
cwl is on a distinguished road
Hello, everyone

I'm performing a steady (with Rotating Reference Frame) simulation of a radial blower with constant density gas.


To get the correct velocity profile at inlet and to avoid backflow problems - i've added a "Stator" region which has two interfaces (Intake and Exhaust) connecting it to the Impeller:

Boundary condition at Inlet is Stagnation Inlet with 0 pressure, boundary condition at Outlet is Pressure Outlet with 0 pressure.
Solution is converging - i obtain mass flow and moment.
Also - i want to know the pressure difference to get the P-V curves.

What is confusing me: i'm plotting two Pressure Drop reports (both are converging) - one between Inlet and Outlet (boundaries of Stator), another - between Intake and Exhaust (interfaces between Impeller and Stator).
And theese two pressure drops are very different.

Can anyone explain me - why there is a difference between them and which one is correct to use for P-V curve?
cwl is offline   Reply With Quote


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
How to plot pressure drop with Periodic BC? bigfans FLUENT 7 November 8, 2016 12:28
Pressure drop using Fan type BC Alexis Sack OpenFOAM Running, Solving & CFD 2 September 22, 2014 10:18
How to study pressure drop of continous phase in VOF model sajeesh FLUENT 4 February 5, 2014 23:01
Pipe Flow - Pressure Drop Daniel L FLOW-3D 2 December 10, 2010 05:23
Pressure Drop at entrance of a rotor-stator. Resnick Main CFD Forum 0 November 20, 2007 15:50

All times are GMT -4. The time now is 02:48.