Flow Simulation-Inlet Error
Flow Simulation-Inlet Error
(OP)
Here is my final model, I need to run the flow inside. The inlet port is the tube/pipe tangent to the surface on the top (dome or semi-sphere)part and the outlet port is the pipe on the bottom, (the other small pipe normal on the top is the air-vent) we dont need it here.
SW keeps giving the error for my inlet selection and does not proceed the simulation,
Any help????
Flow rate:6.1 in^3/min
Temp: 98.8 F






RE: Flow Simulation-Inlet Error
TOP
CSWP, BSSE
www.engtran.com www.niswug.org
"Node news is good news."
RE: Flow Simulation-Inlet Error
Sorry, didnt know that, ..here is the assembly in Parasolid, let me know if this is not opening or ..
Im uploading a PDF file as well in the next thread,
RE: Flow Simulation-Inlet Error
Here is the PDF file, ..again ,problem is that the inlet port selection is not accepted by FloXpress,
Thanks alot,
RE: Flow Simulation-Inlet Error
TOP
CSWP, BSSE
www.engtran.com www.niswug.org
"Node news is good news."
RE: Flow Simulation-Inlet Error
The 'help' in SW says: create/define the lid for your ports to make it a closed system, and their sample image looks like mine, ..Also, in my model when I (swap and) define the outlet as the inlet FloXpress accepts it but again for the other port (new outlet or real inlet)I encounter the problem.
I am still not sure if you can open the files,
RE: Flow Simulation-Inlet Error
What boundary conditions are you imposing on the inlet and outlet?
TOP
CSWP, BSSE
www.engtran.com www.niswug.org
"Node news is good news."
RE: Flow Simulation-Inlet Error
Yet, I didnt reach to the point where BCs. would be required (if there is any), the only entries I was prompted were pressure OR flow rate AND temp. Again, when I change defining the ports my new inlet is accepted only.
I had to get this project ready by yesterday:(
RE: Flow Simulation-Inlet Error
"how it worked for me"
--
Hardie "Crashj" Johnson
SW 2010 SP 2.1
HP Pavillion Elite HPE
RE: Flow Simulation-Inlet Error
--
Hardie "Crashj" Johnson
SW 2010 SP 2.1
HP Pavillion Elite HPE
RE: Flow Simulation-Inlet Error
Thanks for your tries SnowCrash,
Yeeah, today I took off the filter and kept the rest as they were, then ran the simulation and it did work, SO,yes you are right, my filter is not good, I defined it as polyester and then MESHED it using the APPEARANCE feature to put holes in its body, which apparently didnt work,
I would appreciate it if some body gives a hint about how to make a 'filter' in SW,
cheers,
RE: Flow Simulation-Inlet Error
I don't know if this is an artifact of the translation to parasolid, but there is a gap between your ventCAP and cap1_-_CBL parts. I had to close that before I could do anything with the model.
Make sure the computational domain includes the whole model. By default it was coming in at only covering a fraction of the assembly.
Set your filter to be porous (FloWorks>Insert>Porous Media). You'll have to figure out what specs to put in for just 'how' porous the material is.
By doing these three things I was able to make the model run. Attached is a quick picture of the flow lines generated - don't take it for anything other than example that the model can be made to work. I used your flow rate & temperatures, but I don't know the other important inputs - nor did I let the analysis run to completion.
RE: Flow Simulation-Inlet Error
And here are a couple of things:
Thank you for your try and hints.
I think the package (SW) I have does not carry the flow simulation or FloWorks feature, I am only using FlowXpress here which is unfortunately very basic, ..probably this feature did not install while setting the software or something. Or I might get it installed now if that's possible. FYI,it is a 2010 version, so it should be pretty powerful.
I tried it again now (on FloXpress)and it did accept the inlet, but then for the outlet it did not which is obviously b/c of the filter. Since I couldnt find the FlowWorks somewhere I wasnt able to set it as a porous material.
My goal at this point is setting the filter as a porous material which passes the fluid throu.
RE: Flow Simulation-Inlet Error
None of the '*xpress' tools are 'pretty powerful' regardless of what version of SolidWorks it is for - they're all cut-down and quick setup versions of the full programs of the same name. They can do the very simple, and give you a taste for the abilities of the full versions.
I think you're going to have to ignore your filter (which likely makes your results meaningless) or pay for FloWorks or equivalent(not cheap).
RE: Flow Simulation-Inlet Error
SteveMartin,
Thanks for your help anyways,