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Comprehensive Ansys
LS-DYNA ALE Applications Seminar

Course Overview

This course aims to provide you with the framework to effectively performing fluid-structure interaction simulations using the ALE method in LS-DYNA. It is intended for analysts with good solid and fluid mechanics and thermodynamics background. In this class, the fundamental concepts of the ALE method will be discussed. Then a systematic modeling procedure will be presented which will help the students learn the required keywords and parameters and be able to construct actual models that simulate real physics. The course is meant to be comprehensive covering both concepts and applications. We hope that this class will provide enough information for you to build your own models accurately in a time-efficient manner. Please note that there will be extra examples provided that will not be covered simply due to time constraint, but hopefully they can serve as good reference for the students.

Prerequisites

  • Basic knowledge of solid and fluid mechanics & thermodynamics.
  • Basic knowledge of LS-DYNA model construction & execution (Intro-Class equivalence).
  • A good basic understanding of numerical/discretization methods.

Target Audience

Advanced level engineers who wants to model the dynamics of fluid structure interactions. This may include Mechanical, Structural, Biomedical, Industrial, Manufacturing engineers and other multi-physics analysts.

Teaching Method

The general concepts will be discussed by the instructor. For the practical examples portion, it will be a mixed approach. Some of the time the attendees will be constructing pseudo models. During this portion, for each example model, we will first define the physics of the problem. Then, the students will construct a pseudo-input file for the model (pencil-paper). Afterward, we will go over the modeling details together. For some of the examples, the instructors will define the problems and go over how to set them up.

Learning Path

Currently, no Learning Path available

Learning Outcome

Following completion of this course, you will be able to:

  • Translate real physics into LS-DYNA simulation language.
  • Familiarize with basic ALE commands required for modeling.
  • Navigate and construct simple LAG-ALE FSI (fluid-structure interaction) models.
  • Have a good comprehensive understanding of the modeling process including debugging.

 Available Dates

Currently, no training dates available

Learning Options

Training materials for this course are available with an Ansys Learning Hub Subscription. If there is no active public schedule available, private training can be arranged. Please contact us.

 Agenda

This is a 1.5 to 2-day classroom course covering both lectures and workshops. For virtual training, this course is covered over 5 x 2-hour sessions lectures only.

Virtual Classroom Session 1

  • ALE & other general concepts  
    • The evolution from Lagrangian Method to Multi-Material ALE Method
    • Advection
    • Multi-Material Interface reconstruction

Virtual Classroom Session 2

  • ALE examples discussion & Examples

Virtual Classroom Session 3

  • ALE examples discussion & Examples 

Virtual Classroom Session 4

  • S-ALE modeling approach & Examples 

Virtual Classroom Session 5

  • S-ALE examples discussion & Examples

  • The evolution from Lagrangian Method to Multi-Material ALE Method
  • Advection
  • Multi-Material Interface reconstruction
  • Fluid-Structure Interaction
  • Equation of State
  • Material failure modeling
  • Volume-filling method & Hydrostatic Pressure setting (& misc.)
  • ALE examples
  • S-ALE modeling approach
  • S-ALE examples