[Mojtaba_M]

Dear flow-3d users

I simulate spreading of a droplet. As you can see in the GIF below, the droplet mostly spreads in four direction but I expect it spreads circularly. What should I do to have circular spreading? Should I change the solver or What?

Thanks

[Flow Science Australasia]

Have you tried using a mesh with cylindrical coordinates?

[Mojtaba_M]

Dear Eric

I know it's better to use cylindrical mesh block for such problem but I have to simulate some other droplets in various coordinates. So I used cartesian mesh block.
One noticeable fact is when I increase the surface tension and Viscosity of my fluid, it spreads more circular.

[Mojtaba_M]

Originally Posted by Flow Science Australasia

Have you tried using a mesh with cylindrical coordinates?

Dear Eric

I know it's better to use cylindrical mesh block for such problem but I have to simulate some other droplets along with current droplet in various coordinates and see how they interact with each other. So I used cartesian mesh block.
One noticeable fact is when I increase the surface tension and Viscosity of my fluid, it spreads more circular.

[wilmerecj]

I am also working on these issues. Mojtaba_M, could you share your drop generation model? Perhaps the problem is in the type of solver, some methods have certain limitations to solve certain geometries.

[Mojtaba_M]

To generate droplet you can use initial value and coding using droplet source (search the help).
What should it be changed in solver settings? I thought it is because of structured cubic mesh.