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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…
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Can I use reliably Altair products to simulate CFD on extreme flight conditions?
Description: Usage and limitations of Hypermesh and FlightStream for specific flight conditions in CFD analysis Product/Topic Name : Hypermesh, Hypermesh CFD, Hyperworks, FlightStream Hi everyone! My team is having difficulties evaluating the options with Altair softwares on CFD analysis on specific flight conditions. We…
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Someone can help me with de CFD purposes in diferent secctions of a formula student?
Hi everyone I`m newbie with this tool and I need some support to navigate on the interfaces and do meshings and CFD solves for a formula student purpose. If you want to help me contact me
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Hypermesh CFD Forces calculation in Engineering Quantities
Hello everyone. I am currently performing CFD simulations on a reentry capsule. I am having problems in understanding how the Engineering Quantities - Forces work. What are the units of the force? Does the slice plane I use affect on the force´s value? I am working in milimetres in the sketch and mesh ribbons, and I am…
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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…
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Is it Possible to add a media source in HyperStudy after the optimization is done?
Hello, I am using HyperStudy with HyperMesh CFD to conduct an optimization. I wanted to add a media source to produce visual results automatically, but the optimization is already over and it takes a long time to run. Can I add a media source as a response and can HyperStudy just generate the images without running…
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CFD-DEM-FEA three way coupling for water jet cutter
For water jet cutter, first stage is water pressing soil, second stage is cutter push soil, then cycle again.First stage requires EDEM-CFD coupling, while second step requires EDEM-FEA explicit dynamic coupling. as part of head, water jet spin with it. So CFD should change with FEA cutter head. Since there's no three way…
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Ayuda en CFD
alguien que me pueda ayudar o recomendar algún video o tutorial, necesito realizar una simulación CFD del flujo de aire dentro de la cabina de un vehículo, porporfavor
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Unable to Launch Simlab due non-executable hwx.exe
I installed the software of Simlab 2025 with additional files, but when i the software, this error is popped up, and the software is unable to launch.
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ERROR: error occurred executing acuPrep / ERROR :No RUN command found / Hypermesh CFD 2025
Hi, I have spent the past two consecutive days attempting to run a CFD simulation using HyperMesh. However, every time I attempt to run the simulation, it gets canceled and the following log file appears ( attached image). I have successfully run other simulations earlier this week without encountering any such issues. I…
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HypermeshCFDの起動について
hypermesh起動すると写真の画面出てきました。 ユーザーネームとパスワード打ち込んでも入れません。 どう対処すればよいでしょうか。 よろしくお願いします。
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Ideal Gas compression Analysis using acusolve
Hi Good Day! I ran an ideal gas compression analysis for our piston-cylinder model. I considered only the BDC-to-TDC mesh motion (upward stroke) and adjusted the time vs. displacement curve accordingly. Boundary conditions were applied properly. The simulation ran without errors and showed results, but the pressure peaked…
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How to perform the Aeroacoustics analysis for Air flow in Pipe?
Hi Good Day! I have an air blower model, and I want to perform an analysis to determine the sound levels at the inlet and outlet. Before working on the actual case, I’d like to start with a simpler scenario — air flowing through a pipe. Let’s consider a 1-meter pipe, where I know the mass flow rate at the outlet and assign…
