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Found 84 results

  1. Is it possible to do a 2D simulation of an aerofolio with Acusolver?
  2. Hello expert, I am new to CFD and i have some questions about turbulence model and Y+ value. There is a lot of turbulence model provided in AcuSolve: Spallart Allmaras, K-epsilon, K-omega,... - So which model should be used for some specified case? The value Y+ is used to determined the "first cell height" while meshing. - what is the value of Y+ should i used to calculate "first cell height"? - Does it depend on type of flow (internal/ external) or chosen turbulence model? the following picture was taken in HyperMesh > Utility browser. Thank in advance! Best regard!
  3. Hello, I want to make a thermal simulation of a cooling plate in hyperworks with the AcuSolve Solver. The geometry would be this: Where an aluminium cooling plate (the grey solid) is in contact with a water flow (blue volume). The problem is that I can't get a mesh with coincident nodes between both volumes, taking into acount that for the AcuSolve simulation I need two surfaces in the interface between the solid and the liquid volume. Do you have any solution for it? Thanks in advance.
  4. Hi Acusolve users, I have a problem related to bathroom shower where I need to see the flow distribution. I need suggestions on the methodology to be applied. I am thinking to create a cylinder as shown in figure(second one) to capture the flows. But will it be possible to do in acusolve as it will be a case of multiphase flow.(Water+ atm. air). Any suggestions to achieve a correct methodology ?
  5. hi guys, i am getting troubles with HM-CFD while perform an AcuSolve tutorial ACU-5001 (transient-sliding-mesh) in the tutorials, there is a step call Project Steady State Solution to Use as Initial Conditions. but i can not find this function on HM-CFD (ver 2017.3) so i can complete the excersise. I tried to run transient analysis using restart command base on steady state result but nothing worked. Attacheds are my model files for steady-state and transient cases. Can anyone help me? Thanks in advance! sliding-mesh.hm rotating-frame.hm
  6. Hello, I want to make a thermal simulation with the solver acusolve in hypermesh. In this simulation i hahave a control volume (water) that flows through a a cold plate i n contact with multiple solids with a heat source. The problem is that when I make the mesh in hypermesh it does not make coincident nodes between txo different volumes, as it does in acuconsole. What should I define te make the nodes in the shared surfaces between different volumes coincident? Thank you
  7. I'm running a transient simulation in acuSolve, and when I try to open AcuProbe to view the residuals plots it does not open. Then, if I open another AcuSolve session and I try to open AcuProbe, the information window appears and it says : pnlTools.pnlToolsError :Unable to Launch AcuProbe. I have tried to restart the computer, do you have any idea of how can I solve it? Thank you
  8. hello guys, I am getting a trouble while performing a simulation on HM-CFD-AcuSolve. The simulation in this case is Natural-convection (Acu-3000 in AcuSolve tutorials). when i completed on AcuConsole (following tutorials), the result was OK. But when performing on HM-CFD, the heat from the inner solid does not transfer to the surrounding area (air). So the simulation falied. my version is Engineering solutions 2017.3 and AcuSolve 2018 (downloaded from Altair connect). I tried to check on .INP file generated by both software (AcuConsole and HM-CFD) for the differences but no result. i also add the following command to .INP file (HM-CFD) to make sure the surface transfer heat: wall_function_heat_flux_factor = 1 but nothing work. Does anybody know about this situation? please help. Appreciate. Thank you! P/S: the HM-CFD file is in attached, either the AcuConsole database (.Acs). please view and help me. convection_annulus.hm natural-convection.acs
  9. hello everyone! I am using HM-CFD programs to do some simulation from AcuSolve. While doing a transient simulation, i figured some GAP between HM-CFD and AcuConsole. I have created a multiplier function on HM-CFD and assigned it to an inlet surface. Then i export the .HM model file to an AcuConsole input file (.inp) to view on AcuConsole. But it seemed that Multiplier-Function-data i created is not appears on AcuConsole (or in .inp) file. My version is 2018 (downloaded directly from Altair connect) Does anyone know about this problem? it is because of me or some software bugs? Appeciate every help. Thank you! My HM model is attached. please view and export to .inp file. transient-heat-transfer.hm
  10. hello guys, i am doing some AcuSolve tutorials by Engineering Solutions-AcuSolve. I have found some problems with the Transient-heat-transfer while using on HyperMesh-Engineering Solutions. Here they are: 1. I can not restart computing on Engineering Solutions: The mentioned simulation is transient, which require a restart computing base on the previous computed results ( Steady-state). but restart function seemed not intergrated in Engineering solution. 2. Cant assign multiplier function for inlet's temperature: to be more precise, the inlet temperature drop down in few seconds. but this cant be specify in HyperMesh-Engineering solutions. Does anyone know about this issues? Please help. For more informations, please ask. Appreciated!
  11. Hi, I made a CFD simulation in Hypermesh using AcuSolve. After running the simulation and trying to display the results according to the video posted at the end, I'm required to select a file. However, no .log files are created as on the video and any of the ones created work. Also, unlike on the tutorial, I'm asked to select a Reader, and I don't know which one to use. Can anybody tell me how to make sure .log files (and any others necessary to display results) are created when running the simulation and which Reader to use?
  12. Hi, Can somebody tell me how to decide which solver type to use when exporting a file in AcuSolve? Thanks.
  13. Hi, I've been trying to run a CFD simulation using the Hypermesh solver, however, I always get the same error (ERROR: error occurred executing acuPrep) and I don´t know what it means. Can anyone tell me why this happens and how to fix it? Thanks.
  14. AcuSolve Introduction Training webinar recording.
  15. Hello everyone. I would like to simulate a solid body interacting with a fluid body. As you can see in the model below, the solid body enters, through an interface, inside the fluid body. I assigned to the solid a vertical translation motion. Now, in the results, the two meshes interpenetrate, but the solid doesn't interact with the fluid. Can you help me please? picture1.bmp
  16. Hi, I was wondering whether it is possible to simulate the behaviour of granular material with acusolve, and if so, if anyone could give me a tip on how to do it thanks in advance!
  17. Dear AcuSolve Users, Please find the detailed procedure of mapping AcuSolve CFD results through linear interpolation option. It has a python script attached, a pdf document explaining the process to be followed. This Script can be utilized to get all the CFD results like Velocity, Pressure, temperature etc and map it onto other mesh for further analysis. Regards, Kamlesh Script.zip
  18. Dear AcuSolve Users, Please find the attached material to run AcuSolve in batch mode. Regards, Kamlesh BatchRun_AcuSolve.zip
  19. Hello, I have a query regarding the generation of core mesh in hypermesh cfd. Why it is necessary to have only tetra core meshing? Is it the requirement for hypermesh or in others also for cfd core must have tetras.
  20. Hello, I'm working on a model the third day and can't understand what is the mistake in the meshing parametres. Once I got to build and can't anymore, don't understand what the problem is. sector-100mkr-1gr-narost-001.acs
  21. Hi All, Please find attached tutorial for CFD optimisation of a manifold. Some of the applications, where it can be used includes, HVAC ducting • Reduce pressure drop • Increase flow uniformity • Maximize/minimize outlet temperature Heat exchangers • Maximize pressure drop • Maximize heat transfer Brake discs • Minimize temperature • Maximize heat transfer • Brake cooling ducts External Aero • Minimize drag • Maximize negative lift and many more. I have also attached a simple Pipe CFD optimisation tutorial. Please do contact us for any queries. Regards, kamlesh Acusolve_Hyperstudy_tutorial_manifold.zip Acusolve_Hyperstudy_Tutorial_Pipe.zip
  22. Hi All, Please do register for Altair Multiphysics Webinar series. Click here to register Best Regards, Kamlesh
  23. Hi, Anyone have experience in using Hyperview as post process for Acusolve result? Currently, I'm able to plot contour (on surface) and streamlines. But, 1) How to make cut plane? 2) How to get average value of a surface contour plot? e.g. velocity magnitude at a surface Thanks
  24. If AcuFieldView is launched from AcuConsole, the default is to use the direct reader by selecting the desired problem.run.Log file. Once in AcuFieldView, a data file can be read using File > Data Input >AcuSolve [Direct Reader] > Browse to desired .Log file. Or if acuTrans or acuOut has been used to generate FieldView format data files: File > Data Input > AcuSolve [FV-UNS Export] > Browse to desired .fv file.
  25. Hello all, I am stuck up with the results visualization in acufield view.I have a log file but unable to extract plot in acufield view.It is showing error "internal software error". Please guide, how to resolve. Refer the attachment.
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