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How in Simlab electroflo solution is solved without considering shared entities of mesh bodies?
The mesh bodies to be solved are not having shared topology. Still how the solver is able to solve?
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“AcuSolve–EDEM Bidirectional 3‑Phase Coupling” module
Dear Experts, We are currently using the “AcuSolve–EDEM Bidirectional 3‑Phase Coupling” module and have encountered two questions: 1. When selecting “water”as the carrier phase, “EDEM particles” as Discrete Phase 1, and “air” as Discrete Phase 2, we would like to understand how the solver handles particle behavior once…
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Community Magnetics Chat Oct 16: 3D Cad Based Parametric Workflow and Extrusive Mesh
Our next community magnetic session is coming up on Oct 16. Our expert speakers will guide participants through interactive sessions, exploring the potential of Altair’s Electromagnetics and Electrification solutions and showcasing real-world applications. In this session, You will learn how SimLab 3D parametric workflow…
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Eulerian interface type model
Dear experts, we have encountered a difficulty when using the Simlab three-phase model: It is quite difficult to understand from the manual what "smooth" and "sharp" in the Eulerian interface type model mean. Are they referring to the "level set" model? Or the Algebraic Eulerian method? Could you please provide the…
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CFD-DEM Simulation of a Tablet Coater with Heat and Mass Transfer
Please find the AcuSolve-EDEM geometry files below: https://us.v-cdn.net/6038102/uploads/S8ZX4NMLHIHZ/tablet-coater-geometry.zip Tablet coaters are vital pieces of equipment in the pharmaceutical and nutraceutical industries, widely used to apply a uniform coating layer on tablets for functional or aesthetic purposes. This…
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How to show material Yield Strength on results legend?
In Simlab how can I see the yield stress of my model in the legend bar of the simulation results? For now I can see the max and min stress values, but I would also like to see the value of the yield stress for comparison
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New eLearning Course - Meshing for Structural Analysis with SimLab
We recently released a new eLearning course, Meshing for Structural Analysis with SimLab. Practice mesh generation, including CAD-based workflows, mesh-based workflows, assembly methods, and bolt modeling techniques. Learn about Meshing for Structural Analysis, at your own pace! Meshing for Structural Analysis with SimLab
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Multi Speed NVH analysis of E-Motor in Altair SimLab
In this video, learn how to perform a multi-speed NVH (Noise, Vibration, and Harshness) analysis using Altair SimLab. This workflow enables engineers to evaluate system behavior across multiple operating speeds, helping identify and mitigate potential NVH issues early in the design process. ✅ What You’ll Learn: 1) Setting…
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Problem with the Circuit Designer in SimLab
Hello, i can't move, connect or change the values of elements (resistor, inductor, N-pins conductor) in the circuit designer in Altair SimLab. I am using SimLab 2025 – Student Edition. I did everything exactly as shown in the following tutorial video, where the presenter edits the elements at 3:50.…
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[SimLab] Transmission loss 해석 예제
https://us.v-cdn.net/6038102/uploads/UHNF444CGHG9/os-v-1100-transmission-loss-in-a-muffler.pdf https://us.v-cdn.net/6038102/uploads/WN6J4M1JFP9V/transmission-loss.fem OptiStruct 구조 해석 솔버를 사용하면 Transmission loss 해석을 수행할 수 있습니다. 해당 예제를 SimLab 인터페이스에서 모델링하는 방법에 대해 아래의 동영상으로 확인할 수 있습니다. 해당 동영상은 2025.1 버전 기준으로 작성되었습니다. 모델링이 완료된…
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How to keep ambient air of constant temp in Simlab acusolve (lets say 100 degC)?
The red arrow marked box shown below is to be tested at an ambient temp of 100 C. How to give constant temp to the ambient air ? (I have considered the ambient air as a solid surrounding the box)
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1D Spring creation Using Altair Hypermesh or Simlab Radioss.
Hi, In 1D spring Creation, How to create a spring between two faces? I used two methods, 1) Create a Rbe 2 in the two spring connecting surface, then directly create a spring by picking two center nodes of rbe's from the two surfaces. 2) Create a center nodes just below the two spring connecting surfaces, then create a…
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I am not able to solvemodel in Altair Simlab,
I have downloaded simlab additionals but still not able to find the installation file in the downloaded zip folder can anyone help me to find the installation file. I am using 2025 version
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How to understand the material diameter of multiphase flow in Simlab?
I have been working on a multiphase flow coupled discrete element model in Simlab recently. When setting up multiphase flow in Simlab, the carrier is water, and the two discrete phases are air and particles. However, the diameter appears under the material subdivision. How should I understand this? Is the diameter of the…
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how to correctly set up for material's properties?
I have problem to set up the properties of a polymer, in Simlab when you select the class of polymer you then upload the MDS file as you need, but then as for the fiber orientation is mandatory to give? what if I do not know the exactly orientation of the fiber, I can not set up the material then-? Also at first I try to…
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Altair Education
Are there any extra education content if ı would reach the Hyperwork full packet. I cannot learn everything from SimLab student version's education package
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[SimLab] Heat Balance doesn't converge
Hello, I am trying to run a thermal simulation in SimLab Electronics Thermal. For some reason, both the thermal and CFD convergences reach 100%, but the Heat Balance remains stuck at 0%, even after 500 iterations in the log file. My initial setup is quite simple: I am simulating a semiconductor module mounted on a heatsink…
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Community Champion of the Month - August, 2025
The Community Team would like to introduce the August Champion of the Month, Dr. R. B. B. Ovando. Dr. Ovando is a researcher and engineer working at the intersection of electromagnetism, heat transfer, fluid dynamics, materials (stress, mechanical and physical metallurgy), and numerical simulation. His work combines finite…
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why is the RBE constraints not working
Description: I am working on a structural analysis for a expansion tank and I created 3 RBE(following the tutorial) to give constraints like fixing points. But the result is that the tank is not properly fixed. What is the possible cause for this? is it because the bad meshing near the fixing points maybe? I don't know.
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Pressure is time dependent so which solution type
Hello, I need to do a simulation in Simlab that I need to set pressure on the inner surface of a expansion tank which is repeated for thousands of times for certain pattern, I am trying to figure out which solution type of analysis I should assign(transient analysis but specifically which in Simlab) to get a structual…
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Error # 291 in Direct Frequency Response using Student Version of Simlab
I am currently using the Student Version of Simlab, and while working with the Direct Frequency Response, I receive the following error: *** ERROR # 291 *** No output results requested for Frequency Response, Transient Analysisor Random Response. Note that displacements and stresses are disabled by default for such…
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CFD Solution does not find my mesh
hi everyone, Why is this happening, "Solution not contain corresponding mesh. Please include valid mesh"? i did the mesh and defined it in the solution as shown below: here is the cutplane of my mesh: *edit: Attach my simlab file. *For meshing and setup, i refered to Tutorials SL2420…
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FSI Solid-Side Multiple Time Step Not Executed, Causing Fluid-Side TCP Error
Hello everyone, I am conducting a SimLab FSI (Fluid-Structure Interaction) analysis and encountered a problem. I would like to seek advice from experienced users. 1. Problem Description The solid side (OptiStruct) was set with multiple time steps, but in practice it does not execute exactly as specified. The fluid side…
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How to Map Heat Losses from Flux Solution to Flow Solution in SimLab?
Electrical appliances and devices generate heat losses known as joule losses which significantly influences the thermal behavior of a device or system. Ignoring this coupling can lead to inaccurate predictions, poor design decisions, and potential failures. Multiphysics modeling especially coupling electromagnetic and…
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In Simlab electroflo, what is the difference between geometry discretization and analysis mesh?
I am able to see hexa mesh generated in both the options. what is the use of such options and differentiate how they are unique.
