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Is it possible to perform 2D CFD analysis in Simlab ??
Hi everyone, I am working on a motor and have completed the 2D electromagnetic design in SimLab. Now, I need to perform a thermal analysis to identify internal hotspots and verify the effectiveness of my water cooling. My strategy is to start with a 2D workflow for fast iterations before moving to a full 3D model. I have…
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Using .step file for hex mesh in Hypermesh. Is there a tutorial explaining from import to export.
Description: I am trying to do hex meshing for CFD in Hypermesh. I want to import a .step or .igs file and create hex mesh and then export it to a .msh or other mesh formats. I could import the .step file but I am unable to do the named selection or name of the boundaries (inlet, outlet etc). Will just hypermesh work in…
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CFL number in Post-processing
HI everyone, I want to investigate the effect of timestep size based on CFL number (from 0.5 - 10). May i know where can i get the value of CFL during post processing? I only found "CFL timeInc" in the log file but i dont think this is the CFL value. I am expecting to see average, min and max CFL.
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In HypermeshCFD post-processing, how can I extract data for a specific region?
I want the average velocity within the red selection box, not the average for the entire cross-section. How should I proceed with the selection?
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Hypermesh CFD 2025 fails to export mesh
Hello everyone. I´ve created a mesh from an imported model, as usual, without any change to my workflow (check geometry, define patches, define surface mesh parameters, volume mesh) and the software manages to create a mesh. The problem arises when I try to export solver deck as CGNS or openFoam files, where in the first…
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When I use HypermeshCFD and finish meshing, the calculation fails to proceed.
When I use HypermeshCFD and finish meshing, the calculation fails to proceed. What could be the reason?
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Geometry or model not showing up in hypermesh
I have this solidworks part file when i tried to open or import it in hypermesh nothing is showing up and in the model tree it also shows titles. is there something wrong with the cad file or with hypermesh version..?
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Is it not possible to show wall shear stress results when running laminar flow in HyperMesh CFD?
I am running a internal pipe flow simulation in HyperMesh CFD 2025 with the Acusolve solver. My flow is laminar, but then I cannot show wall shear stress results in post processing which I want. I can only see it when I use a turbulence model.
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Differences among hm and hw tools
Product/Topic Name : HyperMesh, HyperMeshDesktop, HyperWorksDesktop, HyperMeshCFD, HyperWorksCFD I need help to understand the differences among the tools HyperMesh, HyperMeshDesktop, HyperWorksDesktop, HyperMeshCFD, HyperWorksCFD and why are the ribbons all meshed up among versions? It is very confusing. If I understand…
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Altair UltrafluidX guide
Hello, I have several questions on Altair UltrafluidX: Does UltraFluidx only work on Rocky Linux? I have an Nvidia GTX1650, would that suffice? Where is the virtual windtunnel that I can send the job to ultrafluidX? I cannot find the download file and also cannot find it in the installer. (See attached image) How do I…
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EDEM and HYPERMESH CFD Coupling
Hello everyone, I'm new here and really excited to be part of this community. I'm currently working on mercury free gold recovery project of which I want to use EDEM and ACUSOLVE couple DEM CFD. I already have CAD of goldkacha which I used solidworks. If anyone has experience with this or can point me in the right…
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No load transfer between parts
Hello. I am new to working with hyper mesh (v2025) and I have trouble with getting realistic results with my model. It seems to as if there is no load transfer between the elements of my model and I dont know how to fix it. My model is meant to analyze a frame with arealoads on top and 5 fixed attachements on the bottom…
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Hypermesh CFD _ Rotational Periodic Boundaries
Hello, I am creating a sim using rotational periodic boundaries. Both surfaces are identical in shape and size and have identical meshes. The issue I am having is when the sim is run almost all the nodes on each face as part of the boundaries are shown as undefined which creates the following error repeatedly for all…
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Hypermesh CFD hexa mesh 생성 관련
Description: 첨부한 링크의 방식처럼 hexa mesh를 구성하고 싶은데 CFD 프로그램에서는 어떤 기능으로 생성을 할 수 있는지 알고 싶습니다. Extrusion으로 할 경우 mixed 되어 있어서 기능이 활성화 되지 않는 상황입니다. https://community.altair.com/discussion/63977/extrude-%EA%B8%B0%EB%8A%A5%EC%9D%84-%ED%99%9C%EC%9A%A9%ED%95%9C-hexa-mesh-%EC%83%9D%EC%84%B1-%EB%B0%A9%EB%B2%95 현재 생성하고 싶은 지오메트리의 일부입니다.…
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Alternate Installerとは？
Alternate Installerとは？ 製品をダウンロードする際、次の2種類のインストーラーが表示される場合があります。 「製品名＋バージョン」：Xpress Installer 「製品名＋バージョン＋Alternate Installer」：Alternate Installer Alternate Installerが用意されている製品では、通常の「製品名＋バージョン」のインストーラーをXpress Installerと呼びます。 Xpress InstallerとAlternate Installerの違い 両者の大きな違いは、必要なモジュールをいつダウンロードするか？です。 ● Xpress Installer…
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Plot over line in HyperView / HyperMeshCFD
Hello, Altair community, I have a question, how a graph can be plotted similarly as in Paraview: You can seen on the picture the screenshot of paraview post processing: the pipe with a throttle and its velocity distribution; the created plot over line. Now I would like to make the same in the HyperView or Hypergraph. Many…
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Hyper Meshを使った.mshへの変換方法 How to export as .msh in Altair HyperMesh (Student Edition)
お世話になっております。 Hyper Meshを使って、STEPファイルからメッシュを切って.mshに変換したいのですがうまくいきません。何かいい方法はありますでしょうか？ お忙しい中恐縮ですがご確認の程よろしくお願いします。 Hello I'm trying to use HyperMesh to cut a mesh from a STEP file and convert it to .msh, but it's not working. Is there a better way to do this?
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Using moments to calculate FSAE aero balance
Hi all! I am looking for a way to rigoursly define the aero balance of my simulated aero kit: The CFD is run to convergence with wall-resolved y+ of 2.5 average and 3.7 max, 350 iterations, and origin is at the intersection of the front axle, ground, and symmetery planes with x pointing rearwards and z pointing upwards.…
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How do i know that 'mirror' is ok?
I did mesh a 1/4 of my solid, then did 2 mirrors, just like shown down there: Than the 2 mirrors so i can have the whole solid: I was exporting the file to another software to simulate, Abaqus. I did a simple test, the program identified that, and i get that warning "There are 4 unconnected regions in the model." And then…
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Error when initializing HyperMesh CFD simulation
Hello everyone. I am currently trying to replicate the NACA0012 tutorial but with my own geometry file, since I would like then to use this method in other simulations. It seems that I am able to mesh the geometry correctly and apply the extrusion method in order to perform a 2D simulation. But when running the simulation…
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Geometry exportation erros
Hello. I am trying to validate by myself the NACA 0012 airfoil from the tutorials. But I am trying to make myself the geometry of the problem in order to be able to change the geometry at some point in the good way (in case I want to study anything else than an airfoil). I am using Fusion 360 to create the geometry and…
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Problems in Pressure results in HyperMesh CFD
Hello all. I'm currently trying to simulate a NACA 0012 airfoil, yes, the same as the tutorial one. Instead, I'm simulating in 3D. I'm pretty sure my mesh is acceptable in order to have coherent results. I'm using the ''pressure farfield'' boundary condition for the simulation zone and the ''wall'' boundary condition for…
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How to automate solid creation and meshing in HyperMesh using Python or scripting?
Is there any way to create a Python script (or in another programming language) that I can use in HyperMesh to automate my work? For example, I created a solid from scratch and then generated my entire customized mesh from it. Now, I need to do the same for another 20 different sizes of this solid (only the proportions…
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When using the Hypermesh CFD software to simulate the official website's "Supersonic Flow in a Conve
When using the Hypermesh CFD software to simulate the official website's "Supersonic Flow in a Converging-Diverging Nozzle" case, after setting the periodic boundary, an "error occurred executing acuPrep" situation occurred during the acuSolver operation. This is the error vlog. The problem lies in the set periodic…
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Mesh ratio size
hi everyone, case: 2D transient, flow over cylinder at Re = 20 000 - 100 000, SST Questions: What is the rule of thumb for mesh ratio size from edge to area of interest (nested mesh) to global mesh size? Should i use mesh ratio 1:2? For example, edge size = 1e-3 meter > nested mesh = 2e-3 meter > global = 4e-3 meter? is…
