Simulation Mechanical and Multiphysics

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Valued Mentor
AstroJohnPE
Posts: 500
Registered: ‎08-30-2012

Re: A queston

05-13-2013 10:02 AM in reply to: modi20077

Hi Mohammed,

 

It is very difficult to determine the problem from the limited information given in the summary file that you provided. It would be better to attach an archive of your model. Do a search for the words "create" and "archive" to find the post that describes how to do it.

 

  1. What load do you have applied that would cause a flow?
  2. What is the magnitude of that load?
  3. What load curve is that load assigned to? 
  4. Does that load curve have a magnitude that is not zero?
  5. Where is the load applied? (X number of surfaces, N number of nodes)
  6. Do you have an inlet and an outlet location for the flow?
  7. Is the load that you applied somehow overwritten with another load or constraint that effectively makes your load zero?

The last item can be determined by looking at the model in the Results environment, and specifically whether there are zero magnitude velocities appearing at the locations of your load.

John Holtz, PE
Mechanical Engineer
Pittsburgh, PA

16 years experience with Simulation Mechanical
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Employee
Sualp.Ozel
Posts: 93
Registered: ‎10-27-2009

Re: steady state flow

05-13-2013 10:34 AM in reply to: Dan.M

Hello Mohammed Fayed

 

Looking at the PDF file, I see that you are using a 2012 - Student version of the software. The latest version is 2014 and I always recommend being on the latest version.

 

Please create an ARCHIVE file and attach it to this case so we can investigate further.

 

Sualp Ozel

Product Manager

Digital Simulation
Autodesk, Inc.

 

Direct: 412.447.0316

Mobile: 412.334.2555   

e-mail: sualp.ozel@autodesk.com

 

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Active Member
hxq0707
Posts: 7
Registered: ‎04-06-2010

Re: A queston

05-13-2013 12:55 PM in reply to: AstroJohnPE

Sualp:

If I understand correctly, there is no Simulation Multiphysics 2014 anymore, there is only Simulation Mechanical 2014 without Fluid Flow analysis capacity. So, Mohammed Fayed will not be able to do steady state flow analysis if he installs version 2014 as you suggested.

 

Is there any plan to put fluid flow module back? Thanks.

 

hxq

 

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Employee
Sualp.Ozel
Posts: 93
Registered: ‎10-27-2009

Re: A queston

05-13-2013 02:00 PM in reply to: AstroJohnPE

If a user is trying to simulate a CFD analysis using the 2014 software, they cannot do that within Simulation Mechanical. They will have to use Simulation CFD 2014.

 

-Sualp

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Active Member
hxq0707
Posts: 7
Registered: ‎04-06-2010

Re: A queston

05-13-2013 02:47 PM in reply to: AstroJohnPE

Sualp:

 

How about my previous fluid flow (CFD) analysis data performed by Autodesk Simulation Multiphysics until version 2013?  I cannot open those analyses/files  any more??  ---- As I know, you guys have taken away not only Fluid Flow analysis module but also Coupled multiphysics analysis module.   A mechanical FEA package should include fluid flow analysis capability, just like “ANSYS Mechanical” includes CFD, CFX CFD and Fluent CFD modules (Only Fluent CFD module needs extra money).

 

Autodesk Simulation CFD software (formerly CFdesign) is a different package and it’s expensive.

 

hxq

 

 

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Valued Mentor
AstroJohnPE
Posts: 500
Registered: ‎08-30-2012

Re: A queston

05-13-2013 06:23 PM in reply to: hxq0707

Please read this discussion to understand how to perform fluid flow analyses, coupled analyses, (and probably a lot more) using Simulation Mechanical 2014:

 

http://forums.autodesk.com/t5/Autodesk-Simulation-Mechanical/Simulation-Multiphysics-2014/td-p/38760...

 

Note that there is no cost for this much improved product provided your service is current.

 

John Holtz, PE
Mechanical Engineer
Pittsburgh, PA

16 years experience with Simulation Mechanical
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Employee
Sualp.Ozel
Posts: 93
Registered: ‎10-27-2009

Re: A queston

05-14-2013 06:08 AM in reply to: AstroJohnPE

All of our commercial customers with an active subscription to Autodesk Simulation Multiphysics 2013 were automatically migrated to a combination of Simulation Mechanical 2014 and Simulation CFD Advanced 2014 (+ CFD’s UI = design study environment)

If you have old Fluid flow results you analyzed in Autodesk Simulation Multiphysics 2013, you can still look at those results in the 2013 software, since you can have both the 2013 and 2014 version of Autodesk Simulation installed on the same computer side by side.

The decision to “end of life” Multiphysics was in an effort to provide our customers with our best in class CFD offering from Autodesk, which in this case is Autodesk Simulation CFD 2014. This tool can help you simulate MANY Multiphysics scenarios including thermal-fluid transient cases including compressible flow and cavitation effects none of which Simulation Multiphysics could simulate.

Also thanks to the interoperability between Simulation Mechanical 2014 and Simulation CFD 2014 you can transfer the thermal results from CFD to Mechanical (example: Linear static stress or MES analyzes) to perform thermal stress calculations. Here is a link to the video: http://vp.telvue.com/preview?id=T01885&video=147697

Using an add-on-app to CFD (free) which we released on the Autodesk Simulation App store, you can also map pressure results from Simulation CFD to Simulation Mechanical.

Here is the link: http://apps.exchange.autodesk.com/SCFD/en/Detail/Index?id=appstore.exchange.autodesk.com%3asimcfdtos...

You can also watch the following episode of SIMTV to learn more about this new technology to map pressures from CFD to Mechanical: http://vp.telvue.com/preview?id=T01885&video=149819

 

Best regards

Sualp Ozel

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