SPH formulation
Hello,
I am trying to simulate a tube (ex. toothpaste tube) packing operation. I have to check product behaviour while tube is packing. I used SPH particle. But I dont get appropriate results. i shared rad file.
Answers
-
Hello
I want to formulate Tube and Liquid Interaction.
- Which Contact type can be used? I used Type 7. Is it correct? for this, How to define parameter like Istf , STFAC, Gapmin etc etc.
Want to simulate effect of tube formulation from cylinder on inside liquid? Which boundry condition can be used?
0 -
Hi Harsh,
We were looking on your model. Based on the loading conditions provided the simulation is happening correctly. Can you please elaborate more on your project?.
Type 7 contact is correct. You can try with Istf=4 and provide a small Gapmin.
0 -
Hi George,
I am working on Toothpaste tube forming process.
there are two cases.
1. I want to simulate tube formation process from a cylinder. I want to check difference between volume of cylinder and volume of tube (Deformed shape of cylinder after process)
I am done with this. Please refer attached video. (Cylinder and tube is empty)
2. Now, I want to fill water in cylinder and repeat tube formation process. i want to check water displacement when cylinder get convert into tube.
cylinder is closed from bottom and later on sealed on top by two plates.
0 -
Altair Forum User said:
Hi Harsh,
We were looking on your model. Based on the loading conditions provided the simulation is happening correctly. Can you please elaborate more on your project?.
Type 7 contact is correct. You can try with Istf=4 and provide a small Gapmin.
Hii
When i open the results of the above model in hyperview, SPH particles looks very differnetaly. Can u tell me why is it so?<?xml version="1.0" encoding="UTF-8"?>
0 -
Hi,
Can you include /ANIM/VERS/44 keyword in engine file and try running?.
If the issue persist please share this model file.
0 -
Hello,
I try with above suggestion. problem solved.
one more Question
is there any need of gravity load boundary condition to SPH particle?
0 -
Hi Harsh,
I too doubt whether gravity load is required in this scenario.I feel you can remove the same.
0 -
hello,
I try with grvaity and without gravity load.
In both case, i didnt get proper result. Please suggest some correction.
0 -
Altair Forum User said:
Hi Harsh,
I too doubt whether gravity load is required in this scenario.I feel you can remove the same.
i removed it, then no movement of SPH.
0 -
0
-
0
Altair Employee