[paulathikalam]

Hii,

I am trying to run a SFLOW case to get familiarize with the simulations. But unfortunately there seems to be some error while importing an stl file that i have created. But the stl looks ok (I think ). Can anyone have a look.

A zip file containing the code and stl file is attached.

The code runs fine without the stl file, but when i import the stl file using
S 1 1
S 7 15 0 0
in the diveMesh code, the simulations pops up an error during reef3d run saying EMERGENCY STOP -- velocities exceeding critical value N 61.

Is it because of my stl file ?

Any help on this matter is appreciated.

Thanks

Paul

[valgrinda]

Hi Paul,

the problem arises from the wetting-and-drying area at the top of the bar (and the following vertical drop) in conjunction with the quadratic non-hydrostatic pressure algorithm. I suggest trying the linear non-hydrostatic pressure algorithm.

[Chalwwz]

Hi Paul,

As Hans has pointed out, for your application, it is a good idea to use linear non-hydrostatic pressure by setting A 220 to 1. In addition, it is recommended to use A 241 1. Attached is my version of the control files that does not crash.

Good luck
Weizhi

[paulathikalam]

Dear Dr. Hans and Dr. Weizhi,

Thanks a ton for helping.
I will run again with your solutions.