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Simulation Mechanical and Multiphysics

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mnpatterson08
Posts: 1
Registered: ‎04-07-2012

Propeller Fluid Analysis

259 Views, 3 Replies
04-07-2012 09:49 AM

I am new to Autodesk simulation, and I can't figure out how to analyze the air fluid output for an airplane propeller. I haven't been able to find any tutorials, are there any out there? Or could someone make a quick list of steps of what I should be doing please?

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Employee
PipePakPat
Posts: 158
Registered: ‎11-12-2009

Re: Propeller Fluid Analysis

04-07-2012 07:13 PM in reply to: mnpatterson08

Autodesk Simulation Multiphysics' fluid flow does not consider changes in fluid density.  For this reason, Mach numbers below 0.3 can be analyzed and considered to be acceptable.  An air plane propeller is more than likely exceeding this limitation.  Autodesk also offers "Autodesk Simulation CFD" (formally CFDesign) which is more capable in solving this type of analysis.

Pat Tessaro, P.E.
Customer Support Engineer

Autodesk, Inc.
285 Kappa Drive
Suite 250
Pittsburgh, PA 15238
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Contributor
humbug1987
Posts: 13
Registered: ‎04-04-2012

Re: Propeller Fluid Analysis

04-08-2012 07:44 AM in reply to: PipePakPat

would this also be the case for (say for example) the ports on a cylinder head for an IC engine?

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Employee
INACTIVE_AstroJohn
Posts: 492
Registered: ‎03-25-2010

Re: Propeller Fluid Analysis

04-09-2012 02:23 PM in reply to: humbug1987

Hi Brendan,

 

If the compressibility of the air in your engine simulation is important, then Simulation Mulitphysics is not the product that you want to use. Please use Simulation CFD when compressibility effects are important.

 

For the engine, there are other factors involved beyond the propeller example that was originally asked: namely combustion. I am not sure whether Simulation CFD can handle that aspect or not, but your description and my limited knowledge of I.C. engines lead me to believe that the combusion may not be involved in what you are trying to obtain. :smileyembarrassed:

 

Sincerely,
John Holtz, P.E.
Senior User Experience Designer, Simulation
Autodesk, Inc.

Current version of Mechanical & Multiphysics: 2013 SP1 (2013.01.00.0012 28-Jun-2012)
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