LS-DYNA TUTORIAL 18: Sphere Drop on Water with ALE method
This is a basic tutorial for fluid-structure interaction modelling with ALE formulations. The simulation in this video is a quarter model of the simulation performed by Bisagni and Pigazzini (2017)
https://www.tandfonline.com/doi/full/...
7:10 Correction: MU for water should be 1e-9
Things that I cover in this video:
How to create fluid and domain parts with ALE formulation
How to modify the density of sphere to achieve a desired mass
How to create quarter model of a symmetrical problem
How to use SPC set to apply plane symmetric boundary conditions
How to use MAT_NULL and EOS for water
How to define Vacuum part (domain for fluid)
How to define the interaction between Lagrange and ALE (coupling between the fluid and structure)
How to define the d3plot intervals based on the total number of plots
How to display an overlay graph
How to plot the FSI database
For more details about ALE, you can check out my published papers:
Failure Prediction in Bulk Metal Forming Process
https://www.hindawi.com/journals/ijme...
A Useful Manufacturing Guide for Rotary Piercing Seamless Pipe by ALE Method
https://www.mdpi.com/2077-1312/8/10/756
3D Numerical Simulation of Seamless Pipe Piercing Process by Fluid-Structure Interaction Method
https://www.matec-conferences.org/art...
A Proposed Solution to The Crack-Like Flaws in Hot Forging Process Based on Numerical Simulations with Ls-Dyna
https://www.researchgate.net/publicat...
Presentation slides covering good point for FSI modeling with ALE:
http://ftp.lstc.com/anonymous/outgoin...
