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There is no fluid volume in the project

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Old   April 21, 2008, 08:30
Default There is no fluid volume in the project
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When I start the simulation or just create mesh I have the message: "There is no fluid volume in the project. Please check geometry or boundary conditions."

It's an external analysis type with conduction, radiation and free air cooling. I often make this type of simulation and I was never obtained this message.

Remark: -If I run this model in internal analysis type with heat conduction in solids only it's OK.

- I check geometry and I have:

"Analysis type: External" "The fluid volume is 0 m^3" "The solid volume is 0,06264 m^3"

Thanks in advance for any help!
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Old   April 21, 2008, 11:40
Default Re: There is no fluid volume in the project
Kelly Cordell-Morris
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When you perform the check geometry ensure that check for invalid contacts is applied. Once the check is completed any invalid contacts will be shown(points or lines of contact between objects cannot be resolved by the mesh, it needs to be a surface to surface contact although the surface can be very small). The invalid contacts need to be resolved before you can perform the analysis.

If the geometry is not important you can just suppress to remove the invalid contact otherwise you may need to change the geometry slightly.

Kelly, Consultant Engineer, Flomerics
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Old   March 4, 2009, 15:55
Default Re: There is no fluid volume in the project
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hello,seems to me one of the things ur doing wrong is that floworks can only analyze HEAT CoNDUCTION FOR SOLIDS ,in ur case tht might be one of the reasons you get the message, i have another problem tho and itd be great if you can help since its been a long time since u have wriiten this message i figured u might have got to the bottom of this,i get the exact same message when i try to run an external analysis , before i start the study(using the wizard)i have nonzero solid volume but after i use the wizard i get zero solid volume in geometry check and the analysis wont run,was wondering if you know whats wrong,and i have no contact error,and i get the right volume when i choose internal analysis TY
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Old   March 5, 2009, 02:39
Default Re: There is no fluid volume in the project
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Hello, often the problem comes to the contact but I had this problem when I used the surface modeling. My solution for to find the problem is to delete piece by piece and check geometry between each deleting. It's fastidious but it's a solution.
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Old   June 12, 2009, 17:05
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Joshua Brickel
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I have found that if you create a fluid subdomain this problem can be resolved. Why this works I do not know...
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Old   December 30, 2022, 08:58
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Sorry to resurrect this very old post but I came across it when I encountered the same error message in SolidWorks Flow Sim (perhaps they run the same solver in the background?).

In my case - the issue was that I was trying to mesh the model before I had added any boundary conditions. Apparently you must add flow conditions to the model in order for there to be a fluid volume. This is not the case for other software like ansys/fluent - so the error took me some time to figure out.
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