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Old   April 23, 2012, 09:33
Default CFD analysis with AcuSolve
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Hi everyone,

for the office we are planning to bring AcuSolve to the CFD department since we already have Hypermesh to create cool meshes

Do u have some comments about AcuSolve? Do u know if it can make 2D analysis?

We are at the moment not trying to achieve huge calculations with it. Incompressible flows is what we are planning. Maybe two phases (air, water) but that's all.

Thanks in advance, people.


mems21
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Old   April 24, 2012, 02:25
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Elena Cortin
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Hi

We are using Acusolve a lot, it is great on 2D simulations and also have several great fetures,

Do not hesitate to contact me for any help.

Regards
Elena
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Old   April 26, 2012, 12:25
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Rachel Vogl
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As far as I know, Acusolve can solve 2d using one cell width.
So 2d analysis with one cell width is possible.

I guess acusolve does not have any multphase to solve air water. Atleast I dint read anything from manuals.
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Old   April 26, 2012, 12:26
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Elena,

What kind of simulation work do you do with acusolve ?
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Old   April 27, 2012, 04:07
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Hi Rachel,

thanks for your Info.

Considering the limitations of AcuSolve and assuming that we are not going to calculate anything out of its scope of calculations, in your opinion, is it Acusolve a software to consider as main software? Or would you have it as a software to support another one like Fluent, STAR...?

Thanks
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Old   April 28, 2012, 08:13
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Acusolve is certainly a powerful solver. If it does what you need and accurately then there is really no need for another code.

In general Acusolve dances to a slightly different drummer than the other codes (or at least it used to - it may have been hidden by the pre/post processor now). It is basically an equation solver that, if you happen to choose the right boundary conditions, will give you the answer to a fluids problem. That being said, if you set it up right it is fast, robust and accurate.

I like the problem setup being in an ASCII file, you can see what the code is working with. I currently use CCM+, which has many good features as well, but on a complicated problem it is essentially impossible to really know what is in the model, whether it has been propagated from client to the server processes,what has been changed,....
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Old   April 29, 2012, 11:44
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Hi Mems21

As Robert mentioned, it is fast/robust and text file driven.
If the physik is ok for your application, then a leading program.

Since I am a LaTeX/Linux user, I like the 3D images inserted in PDF docs by acureport tool.
http://www.acusim.com/doc/AcuReport_...nce_Manual.pdf

Cheers,
R.
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Old   May 2, 2012, 03:21
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Hi Rachel,

thanks a looooot for the Info.

Looking forward to start with AcuSolve
mems21
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Old   February 12, 2013, 07:57
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Hi,

Anybody actively using AcuSolve? If you are facing any issues, let us discuss.

Cheers,
/R
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Old   April 12, 2013, 14:13
Default Acusolve Tutorials
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Keshava Rao
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Hi everyone,
Anyone can help me to learn Acusolve as early as possible with pdf or videos
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Old   April 12, 2013, 14:22
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If you a customer then the best resource would be Altair Client Center.
http://www.altairhyperworks.com/ResL...l&category=All


There are lots of PDFs and video recordings to get you started in the client center

For freely accessible tips and tricks :
http://www.altairuniversity.com/acusolve-cfd/
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Old   July 16, 2013, 16:51
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I am using AcuSolve to simulate thermal analysis for automobile lamps.

I started with a simplified model which is just a box with two vents (lamp housing) and a solid cube (acts like a bulb). And I simulated two cases:

i. Two vents Open
ii. Two vents Closed

other conditions are listed below:
Boussinesq Model for Air
Box Wall Temperature= 323 K
gravity turn on
solve for temperature, flow and temperature-flow

for case ii, everything went well, air was heated to blow up;
but for case i, I tried different BC types (outflow, inflow) for the Opening vents but the air flow always went into wrong direction (should be against the direction of gravity).

I would like to hear from you if you've any ideas.

Thanks,
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Old   July 17, 2013, 07:54
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Could you please upload your .inp 8input) file and if possible also the .acs (AcuConsole database) file?

Have you tried contacting your local Altair support ?
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Old   July 17, 2013, 10:13
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Quote:
Originally Posted by hellorishi View Post
Could you please upload your .inp 8input) file and if possible also the .acs (AcuConsole database) file?

Have you tried contacting your local Altair support ?
I sent my files to altair technical support and they said they would contact me once they got results, but no news so far.

Anyway I uploaded all my files onto Google Drive.
You can access via- usr: cfdonline.share@gmail.com
pwd: cfdonlineshare
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Old   July 23, 2013, 03:51
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Sorry, it took me a while.

Temperature seems to be fine.

However there is a velocity component in Z-direction in entire domain. I could not get time to have detailed look. DO you know the reason for this velocity in -Z?

I will try to look again later in the day.
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File Type: jpg temp.jpg (65.3 KB, 35 views)
File Type: jpg z_velocity.jpg (71.0 KB, 36 views)
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Old   July 23, 2013, 09:25
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I got the same results and the velocity in Z direction was due to the gravity.

However, in my setup, the gravity was in -Z which meant that the flow should go up in +Z.
Now the simulation showed an opposite appearance.
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Old   August 6, 2013, 13:53
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Finally had some time to catch up with this model...
I have uploaded a variation of the same on your drive.

It is now "boxed". No inlet or outlet, completely closed system. The one you started with two outlets and no inlet was unlikely to be stable simulation.

https://docs.google.com/file/d/0B9k4...it?usp=sharing

Hope it helps.
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File Type: jpg velocity_plus_Y.jpg (92.0 KB, 26 views)

Last edited by hellorishi; August 6, 2013 at 13:55. Reason: outlet not inlets
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Old   August 7, 2013, 08:46
Default with top outlet
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another update:
After "opening" the box i.e. creating one outflow with backflow condition, its working. Velocities field is as per expectation.

Database is downloadable from :
https://docs.google.com/file/d/0B9k4...it?usp=sharing
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File Type: jpg z_vel.jpg (88.9 KB, 18 views)
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Old   August 7, 2013, 09:45
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The closed box and the box with one side open seem to be OK. But I wonder how can I make the box with two opening working.
I also simulated the same in SC-Tetra and using two opening with simply static pressure = 0, and it gave a reasonable result.
Now I want to do the same thing in AcuSolve but got trapped on this B.C. setup
Quote:
Originally Posted by hellorishi View Post
another update:
After "opening" the box i.e. creating one outflow with backflow condition, its working. Velocities field is as per expectation.

Database is downloadable from :
https://docs.google.com/file/d/0B9k4...it?usp=sharing
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Old   August 7, 2013, 11:52
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Just copied the BC settings from upper opening to lower and its working.

https://docs.google.com/file/d/0B9k4...it?usp=sharing

Is this something similar to what you expect?
Attached Images
File Type: jpg z_vel_bottom.jpg (91.0 KB, 20 views)
File Type: jpg z_vel_total.jpg (82.3 KB, 30 views)
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2d analysis, acusolve, incompressible flows, incompressible fluid

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