Hi All, I have been trying to study the flow around a water body in a water tank for weeks and after overcoming errors in different phases of setting up a simulation. Earlier I had a CFL issue very early into the simulation, at present the simulation runs for about 2 secs of physical time and crash…

Hi @cecil_pabbathi ! Guess this is related to the older post from you, right? All the best! Jousef

Hi @jousefm , Yes. I did not want to clutter that thread any further and since I created a new project I guessed it would be easier to follow. Besides running into the CFL issue, my force values are insanely high right from the onset ! [Capture] Cheers ! Regards, Cecil

Hi @cecil_pabbathi , Sorry to hear you’ve been running into really difficult problems. I will try my best to help you as much as I can. So while I’m unsure about the first multiphase simulation you have done, the second one “geom” is the same issue as this post where your outlet should be a positiv…

Hi @Get_Barried , Unfortunately it doesnt. I did try simulations with positive outflow conditions but I get a Fatal I/O error. Also that is probably not the correct way to set up my problem because when the surface wave reaches the outlet there is a backflow which messes up the results.

Hi @Get_Barried Thanks Barry ! Really appreciate it. Hope you have better luck with it than I did :slight_smile:. Regards, Cecil

Hi @cecil_pabbathi , Im doing your simulation now, however just wanted to check whether it is a 6DOF simulation? If so, what are the full parameters for the solid body 6DOF advanced concepts values? You can check what I need in the copied project here and under “multiphase”, I’ve modified the param…

Hi @Get_Barried , It doesnt have to be a floating body yet. Definitely at a later stage. For now I am only interested in the drag and lift values of the body. Once we get this running, we can move on to 6dof simulation in my opinion. Also you might be interested in checking out this simulation of t…

Hi @cecil_pabbathi , Please do take a look at one of my runs “Barry Run 1”. While the initial force values are strange due to the need to check the simulation again (likely due to me not initializing the simulation), but after the initial part the values look alright. Is this what you’re looking for…

Hi @Get_Barried , Sure.Can i have a link to the copied project ? Cheers

SimScale CAE Forum

Multiphase Flow Simulation Fatal I/O Error!

Project Support

Get_Barried February 1, 2018, 5:00pm 6

Hi @cecil_pabbathi,

I’ve copied your project over. Let you know tomorrow after I’ve tried it out.

Cheers.

Regards,
Barry