-
📅 June Community Roundup + Raffle Winner Announcement 🎉
Hello Members, I am excited to share all the amazing things that happened in our community in June. From product updates to celebrating our members' achievements, there is so much to catch up on. Plus, I am thrilled to announce our Raffle Winners. Let's go! Our Community Raffle Winners 🎉are @Altug Otsar @Aviral_Mishra…
-
Exciting Update! New Sessions added to the Community Magnetic Chat Series
We added 8 more sessions to our ongoing Community Magnetic Chat Series. This monthly series is designed to empower industry experts by providing them with insights into the latest features, workflows, and advancements in Altair’s Electromagnetics solutions. Throughout the series attendees will have the opportunity to learn…
-
Simlab Quick Drop Test Setup
Hi everyone, I'm working on a drop test simulation in Altair SimLab using the Quick Drop Test Setup. I noticed that when I define the drop test, the impact surface is automatically created just below the bottom face of the geometry. However, in the same setup, I also enter a drop height value (e.g., 5 feet), which the…
-
SimLab - Multiple questions on meshing, CAD handling, and Abaqus setup
Hi everyone, I am working with SimLab and have encountered several questions I would like help with. I would really appreciate any guidance, tips, or references to documentation for the following: How to replace solid or surface mesh in SimLab? Does SimLab have tools to create 3D welds when the weld line is not straight…
-
Trying to import CAD file freezes Altair Simlab
My workstation has a fresh install of Altair Simlab and I'm trying to import CAD files from Autodesk Inventor to do CFD simulation. But the program freezes instantly when trying to import a file and task manager shows the program as not responding and CPU usage is 0 %. Nothing happens even if I wait for an hour. I have…
-
if its possible geometry cleanup in simlab for all models.
In simlab, we have the complex model to cleanup the surface of the geometry but we have the issue. "remove failed", "delete failed" unable to work in surface areas in simlab. What will do?kindly reply.
-
Result not showing properly
Description: The result display a 2D picture Product/Topic Name : expansion tank simulation, simlab 2025 I am trying to do a simulation regarding one expansion tank, I imported 3D model and I set up the solution using non linear static type but after the run, the model shows as a 2D picture and I don't know why this…
-
Simlab - identify body by thickness
Hi, I am trying to use 'Identify body by size' tool and filter bodies by providing thickness value. It seems to work for some bodies but other bodies are not selected even though their thicknesses are less than the value that I use. The unselected bodies (which should have been ideally chosen) consist of components that…
-
Is it possible to input source terms in Simlab?
I am trying to simulate hydrogen absorption in Simlab, mimicking a metal hydride storage reactor. In order to achieve this I need to input two source terms S_t and S_m. S_m represents the hydrogen absorption rate and S_t represents the heat released due to the absorption. In Simlab in seems I can only input UDF's relating…
-
Menu bar missing
I am trying to do a SimLab course with Altair Edu, and I seem to be missing some menu bars. After I install, I can see the following menus: However, after I activate my license, here is all I see:
-
Magnetic-Transient solve stops with “ill-connected elements” although mesh check is clean
Hi everyone, I’m modelling an axial-flux machine (AFM) in SimLab 2025. My CAD is imported as a STEP file and meshed inside SimLab. I have already run three transient magnetic simulations successfully; the only difference between them was the magnet arrangement on the rotor. After applying a new magnet pattern the solve now…
-
Coupled simulation Simlab - Edem
Hello, dear people from the Altair community, I am developing a coupled simulation between Simlab and Edem to simulate erosion in a sample (image below). I parametrized some parameters in the CAD through Inspire because at the end of the process I want to develop a hyperstudy model to easily vary some parameters in the…
-
FluxMotor Part Creation from SimLab Sketcher
In this tutorial, learn how to create motor parts in FluxMotor using sketches directly from SimLab Sketcher. This process is ideal for customizing components like rotor bars, stator slots, end caps, and housings with precision and flexibility—accelerating motor development with multiphysics integration.
-
Cant see contours in my simulation?
I am simulating a flow through porous cylinder mimicking metal hydride LaNi5. After solving, I dont see my model displayed in the results section. There is proof of the simulation being completed as shown in the convergence plots. However, this is what appears on my screen after solving. When I hover over with the mouse,…
-
[SimLab] Body에 대한 3D 요소 개수를 csv 파일로 출력해주는 스크립트
Overview: SimLab에서 선택한 Body에 대해 해당 Body에 포함되어 있는 전체 요소 개수를 확인하는 기능이 있습니다. 좌측 Assembly browser에서 Model 혹은 Body 선택 후 우클릭 » Details 를 선택하시면 됩니다. 만약 각 각의 Body에 대한 요소 개수를 확인하고자 하면 각 Body별로 반복 작업을 수행해야 합니다. 해당 스크립트는 각 Body에 있는 3D 요소 개수를 파악하기 위해 작성되었으며, csv 파일로 각 Body에 대한 3D 요소 개수를 출력해줍니다. 사용 방법은 아래의 내용을 참고해주시기 바랍니다. 해당 스크립트는 3D…
-
How to Pre-Process Tire Model: Option 2 Manually
How to Pre-Process Tire Model: Option 2 (Manually) In some cases, STPtoOBJ.exe may not generate the required input files from a STEP file for PM FlexTire™, or you may wish to have greater control over mesh resolution for your tire model. In these situations, you can use Altair SimLab® to manually generate the necessary…
-
AcuSolve "Nodal Values" not written to .inp file (GUI bug?)
Hello, I'm encountering an issue with AcuConsole (version: [2023]) when defining a Nodal Boundary Condition using Type = Nodal Values. Here's what I did: Created a NodeID-ScalarValue table (e.g., FldTable7) with 32 nodes and their corresponding X velocity values. Assigned this table to a Nodal Boundary Condition (named…
-
How to fix the No.of .Boundary layers in Conjugate heat transfer analysis?
Hi , I am currently performing a Conjugate Heat Transfer (CHT) analysis (steady-state) using SIMLAB and AcuSolve. The MRF (Multiple Reference Frame) RPM is approximately 20,000, and my CAD model includes a universal motor. Based on this, I estimated the heat source to be around 900 W. I used a CFD mesh for both the fluid…
-
Automated scripts for consecutive analysis cases in SimLab
Overview: This is a script that can be run at once when there are multiple solutions that need to be interpreted. How To : Step 1) Check the analysis list you set in SimLab GUI. (ex. Steady, Steady_2_inlet++) Step 2) Define the analysis case you want to run. Step 3) Enter the path where you want to save the .slb file. Step…
-
Difference between windows bat run simlab scripts VS simlab GUI “automation-scripting-play-auto”
Hello everyone: I have a question about excuting simlab scripts. when i run scripts by GUI “automation-scripting-play-auto”,i can get nice inp file,but when i run the same script using bat command, the output file have many differences against GUI, my bat command is "call 'c:\program…
-
Ayuda en pernos SimLab
hola a todos, quisiera que alguien me ayude a simular una viga unida a una placa ambas se unen mediante pernos, al momento de simular los pernos quiero agregarle una precarga de 1440lfb.1440lfb.in sin embargo solo me da la opción para agregar una fuerza y una distancia al momento de aplicar la precarga, como puedo hacerlo?
-
I am unable to set contact resistance in simlab acusolve.
I need to apply contact resistance between two bodies in acusolve. The faces selected are the shared faces between two bodies. The error above is shown during acusolve run. How to resolve this issue?
-
Simlab Mesh Controls
Hi , I'm working on a CFD setup in SimLab involving an MRF (Moving Reference Frame) zone that is a thin solid region. I want to ensure 2 to 3 elements across the thin thickness using Region Mesh Control, while keeping the rest of the domain coarser. My workflow is: Apply Body mesh control for entire MRF & Region Mesh…
-
Keep getting "Optistruct environment not configured"
I am trying to run a static stress analysis in simlab but I get the message "Optistruct environment not configured". I have all the additionals installed and have even reinstalled simlab. I also have the hwsolver application installed but with no luck. What am I missing?
-
Tutorial Thermal+Structural analysis in SimLab after Feko simulation
Electromagnetic losses, computed by Feko, become volume heat loads and surface heat fluxes in SimLab. There, OptiStruct is used for the subsequent thermal simulation followed by thermal stress and deformation. This tutorial explains the detailed steps in SimLab. It is intended for Feko users who are not familiar yet with…
-
Altair SimLab: Workflow for importing Altair WinProp indoor databases into SimLab
This article outlines the steps for importing Altair WinProp indoor database (*.idb) files into Altair SimLab. Indoor databases can be exported from WallMan to the following proprietary WinProp formats: *.idb file: A vector database (binary) for Altair WinProp indoor scenarios. *.ida file: A vector database (ASCII) for…
-
How to replot the Metal Mapping / Equivalent material mapping in Simlab
I have used Electronics > Equivalent Material and mapped the Metal and Dielectric Material for the PCB. I see the Volumefraction plot when the Mapping is done. is there any way I can replot this Volume fraction 0.0-1.0 scale later in the analysis stage ?