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Ravi H

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Everything posted by Ravi H

  1. Hi Rajendra, Uncheck or switch off the surface outputs wherever its not required so that the total no of open files should not cross 512 mark. Regards Ravi Harti
  2. Hi Juan, Select appropriate turbulence model in the Problem description. Then Go to Surfaces >> Simple Boundary condition Define roughness height as shown in below image. Hope this will help you. Regards Ravi
  3. Hi Dinesh, As of now measuring UI value at arbitrary/coordinate plane is not possible. please do create a surface at the modelling stage itself so that uniform velocity (x.y.z) will be available as a surface statistics output in AcuProbe. Regards Ravi Harti
  4. Hi Sandeep, Please find the attached documents which explains how to map pressure to a structural solver. let me know if you face any problems in mapping. pressure_mapping.pdf acuGetNodeSubset Regards Ravi Harti
  5. Hello Vignesh, let me know your availability at 12 PM to have a web meeting. Regards Ravi Harti
  6. Hi Abhay, Always use different directories for multiple runs. anyway now you have different inp files use below command acuTrans -pb [inp file name without extension] -out -extout -to ensight for more help on acuTrans command type.... acuTrans -h in the command prompt if the same inp file is used for multiple times for run then log file will be with extension of run ids. in that case use below command acuTrans -pb [inp file name without extension] -out -extout -to ensight -run [Run Number] Regards Ravi Harti
  7. Hi Vignesh, as per our web discussion, please send us some images to understand and discuss at our end about the requirements. we will get back to you shortly. Regards Ravi
  8. Hi Kamal, wkt.... m = rho*area*velocity you will get mass flux (kg/s) in AcuProbe and you will be knowing density (rho) by doing simple math (m=rho*area*velocity)will get flow rate. In AcuProbe, we can plot only on available surfaces like inlet, outlet and interiors. Regards Ravi
  9. Hi Vijay, it would be better if you explain what are all the formats MAYA/BLENDER supports. animation file created from field-view will always be .avi format. Regards Ravi
  10. Hi Abhilash, please follow below steps.. 1. Open HM file : the one you prepared 2. Go to Import -->> File type : Nastran ---> browse and select Mesh_intersection file --> click on import once import is completed, go to model and check some components has been created. now correct these elements and export. Regards Ravi
  11. Hi Abhilash, if AcuConsole is creating mesh_intersections file, there must be some issues with mesh. Reimport the mesh_intersections.nas file in HyperMesh over the original file. it will show exact location of intersections in your model. clear these intersections then export to .nas format. Hope it helps you. Regards Ravi
  12. Hi Dinesh, if you are using latest version ie 2017 no need to use script. UI id directly available as a output in acuProbe under Surface Statisctics. as shown in below image. Regards Ravi
  13. Hi Dinesh, Turbulent velocity scale : is the average velocity at the inlet Turbulence viscosity ratio: viscosity ratio, , is the ratio between the turbulent viscosity, , and the molecular dynamic viscosity, . The turbulent viscosity ratio is directly proportional to the turbulent Reynolds number. Typically, the turbulence parameters are set between 1 to 10. here viscosity ratio 10 is good enough. Regards Ravi Harti
  14. Hi Tutulika, As i can see from the image, two separate volumes are created for fan is right but fan volumes are still in contact with same air volume. please do changes as shown in attached image. Regards Ravi Harti
  15. Hello Sandip, While importing nas file into AcuConsole make sure that volume grouping option to be "By volume regions" and surface grouping regions to be " By attributes" as shown in the attached image. let me know if you still face the problem we can have discussion. Regards Ravi
  16. Hi Rajendra, As discussed we explained about these below parameters… 1. Calculate density of working fluid at the particular pressure and temperature and use that in material properties. CASE 1: Coolant flowing at 90"C @ 1200l/hr @ 2.5Bar-gauge - use Coolant properties at this temperature and pressure. here pressure is in Gauge, add atmospheric pressure to make it absolute pressure Exhaust Gas at 450"C @ 150Kg/hr @ 2Bar-gauge - use Gas properties at this temperature and pressure. here pressure is in Gauge, add atmospheric pressure to make it absolute pressure Regards Ravi Harti Let us know if you face any difficulties in using AcuSolve.
  17. Hi Sandeep, This errors occurs when a surface is attached both sides to the same fluid. It can be avoided by checking each volumes, for this you can make utilize of a script available in installation directory. Regards Ravi Harti
  18. Hello Pradeep, As discussed in the meeting, create a reservoir (box, specify outlet to one of the face) at both the outlets and make actual outlet as a interior. let us know the results. Regards Ravi Harti
  19. Hi sandeep, We will discuss at 2.30 PM over the web meeting. i will send meeting invite in a separate mail. Regards Ravi Harti
  20. Stefano, yes you are right. the mesh in the picture is 2D surface mesh, use CFD tetra mesh to create volume mesh. there are some fillets are spoiled, do correct it otherwise difficult to get good results. Regards Ravi
  21. Stefano, if you want to study only flow, then model(mesh as shown in the attached fig) only fluid path along with boundary layers. Extract only fluid touching area to get wetted region. if required extend the inlet 3 to 5 times of its diameter. Regards Ravi
  22. Hi Jonas, I checked your model, there are lot of intersections in the model as shown in fig.(red color indicates intersection) Scale the model before importing into VWT. make sure node to node connection and delete unwanted (duplicate) elements before exporting from HM. Thanks Ravi
  23. Hi, I am not able to launch acusolve for solving in my system even after checking Launch AcuSolve parameter. it only creates inp and mesh.dir what may be the possible problem. please find a attached snap shot. Regards Ravi
  24. Hi, Is it possible to change the x- axis variables (step/time) in acuProbe with some other functions? advance Thanks -Ravi
  25. Thanks for your reply. I am using v13.0 in local system and in cluster it is v12.0. Regards Ravi H
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