General

General

  1. All Categories
  2. General
  3. After the material in multi-material Euler solver has significantly expanded, the material is suddenly replaced by void within few cycles. How to prevent this happening?

After the material in multi-material Euler solver has significantly expanded, the material is suddenly replaced by void within few cycles. How to prevent this happening?

Tagged: , , , , ,

    • March 17, 2023 at 8:59 am
      FAQFAQ
      Participant

      When the material in multi-material Euler solver has fully expanded, its density will be very small. If the material density is lower than the Minimum Density Factor (default is 1E-4) times the Reference Density, the program will replace the material with Void automatically to speed up the calculation. To avoid the Euler material being replaced by void, user needs to reduce the Minimum Density Factor in CUTOFF for the material in Autodyn GUI. For example, reduce it from 1E-4 to 1E-6. This will effectively prevent the material replacement by void.

Featured Articles

Introducing Ansys Electronics Desktop on Ansys Cloud

The Watch & Learn video article provides an overview of cloud computing from Electronics Desktop and details the product licenses and subscriptions to ANSYS Cloud Service that are...

How to Create a Reflector for a Center High-Mounted Stop Lamp (CHMSL)

This video article demonstrates how to create a reflector for a center high-mounted stop lamp. Optical Part design in Ansys SPEOS enables the design and validation of multiple...

Introducing the GEKO Turbulence Model in Ansys Fluent

The GEKO (GEneralized K-Omega) turbulence model offers a flexible, robust, general-purpose approach to RANS turbulence modeling. Introducing 2 videos: Part 1 provides background information on the model and a...

Postprocessing on Ansys EnSight

This video demonstrates exporting data from Fluent in EnSight Case Gold format, and it reviews the basic postprocessing capabilities of EnSight.

© 2023 Copyright ANSYS, Inc. All rights reserved.