As we are welcoming the final quarter of the year 2022, it’s a great time to relook at the Top 10 SIMULIA Q&A Articles for fluid users.
This list contains the most viewed SIMULIA Q&A Articles in fluid domain that have been published in Knowledge Base.
1. Coupled Eulerian-Lagrangian modeling in Abaqus/Explicit
During a coupled Eulerian-Lagrangian analysis, the Lagrangian mesh interacts with the materials in the Eulerian part. Coupled Eulerian-Lagrangian analyses typically offer better interpretation of contact conditions than pure Eulerian analyses, particularly for interactions between fluid and solid materials.
This article offers some tips and best practices for Coupled Eulerian-Lagrangian (CEL) analyses, particularly fluid-structure interaction analyses.
The SIMULIA Co-Simulation Engine is a software component responsible for communication between Abaqus and STAR-CCM+. It is distributed and installed with the Abaqus software as dynamic link libraries. For STAR-CCM+ to communicate with Abaqus during the co-simulation, it must have access to these dynamic link libraries.
Structural integrity is a common application for modeling near-field blasts in Abaqus. The coupled Eulerian-Lagrangian (CEL) technique is well suited for this class of problems; the fluid (air, water, etc.) surrounding the explosive material is modeled as Eulerian, while the structure is modeled as Lagrangian.
4. Capturing the effect of sloshing on the natural frequencies of fluid-filled tanks
The fluid can be modeled as an acoustic medium, discretized with acoustic elements. The acoustic elements however, do not permit a distributed gravity load in the same manner as a structural element. To capture the effect of gravity, a grounded spring is attached to each node on the free surface of the fluid.
The important physical feature of the problem discussed in this article is the free surface of the fluid.
5. Resolving XFlow License Settings
This article discusses the checklists for the license issue faced by a few XFlow users. When the user launches the XFlow, windows pop-up saying that no valid license is found.
6. Airbag modeling with the coupled Eulerian-Lagrangian method
This article discusses regarding a procedure to model an airbag deployment using the coupled Eulerian-Lagrangian (CEL) method. This article contains a simple airbag model demonstrating usage of CEL capabilities for simulating deployment of an airbag.
7. Improving the Performance of Abaqus/Explicit coupled Eulerian-Lagrangian analyses
This article discusses the suggestions which can help to reduce the run time of a coupled Eulerian-Lagrangian (CEL) analysis.
8. Effective fluid equations used in coupled Eulerian-Lagrangian (CEL) analyses
The fundamental equations governing the motion of rigid and deformable bodies are those of motion, continuity, and energy. The Abaqus/Explicit solves these equations in an explicit dynamics analysis procedure.
9. Coupled Eulerian-Lagrangian Analysis Web-based Training
The Coupled Eulerian-Lagrangian (CEL) Analysis with Abaqus/Explicit web-based training contains a series of presentations introducing the CEL analysis capability in Abaqus/Explicit. This training also contains an Abaqus/CAE demonstration of how to build and postprocess a CEL model in Abaqus/CAE.
10. GPU Hardware recommendations for XFlow CFD
This article discusses the GPU hardware compatibility for XFlow CFD.
Currently, XFlow's GPU version is only compatible with NVIDIA* cards, with a compute capability version equal to or higher than 3.5, which means that any graphical card after 2013 should be valid.
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