5 Quick Tips For More Accurate Airfoil CFD Simulations (ANSYS Fluent Tutorial)

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  • Опубликовано: 24 дек 2024

Комментарии • 35

  • @sudheerlanka1939
    @sudheerlanka1939 4 года назад

    Please do a video on Meshing basics, where I can find the right study material for complete understanding of Meshing ... Like when I use inflation, how does it actually change the mesh?

  • @al-aminislam7854
    @al-aminislam7854 5 лет назад +1

    Hello, I was meshing a 3D wing and while inflation was being created it says, "The inflation mesher cannot finish. Check that the inflation parameters are reasonable and that the height is not larger than the element size". If you have any answer for that plz

  • @natalialim193
    @natalialim193 4 года назад

    My cl and cd values resemble closely to literature values. However when i check my y+ value, it's more than a 100? is it still acceptable for the cl and cd? And sometimes when i do inflation for the y value using cfd calc, my geometry mesh elements break into pieces, why?

  • @bal-hadi3925
    @bal-hadi3925 4 года назад

    hi
    in the inlet boundary condition if i change the angle of attack by change the directional @t below
    for example
    X-direction 1
    Y-direction 0
    which is 0 angle of attack. right?
    X-direction 0.97814760073
    Y-direction 0.20791169081775931
    which is 12 degree angle of attack. right?
    if i change the AOA, do i have to change the axis for the life and drag?

    • @yeptasw
      @yeptasw 4 года назад

      similar problem, and i still struggle for solve

    • @debopriobiswas5046
      @debopriobiswas5046 3 года назад

      Yes , you need to change Cl&Cd component according to your AOA.

  • @tapasbhavsar6309
    @tapasbhavsar6309 4 года назад

    My wall y+ value is in the range of 0.5 for Spalart Allmaras is it accurate?

  • @yeptasw
    @yeptasw 4 года назад

    if i simulate 3D winglet, has it the same setup with your video?

    • @konstantinosskourkeas9671
      @konstantinosskourkeas9671 4 года назад

      Spalart allmaras weak for 3d flows.

    • @yeptasw
      @yeptasw 4 года назад

      @@konstantinosskourkeas9671 oh thx in advance. I set to transition SST

  • @srideviyalla8525
    @srideviyalla8525 7 лет назад

    This again a nice video. I would like to ask a query about the suggested turbulence model Spalart-Almarah. It is proven to give good results over airfoils. Is it true only when fluid is air, or can we expect the same when the fluid is water? Please reply. Thanks

    • @VDEngineering
      @VDEngineering  7 лет назад +1

      Thank you!
      When the fluid is water, it would mean that viscous effects and the resulting wall shear stresses are orders of magnitude higher. Hence, the boundary layer would be thinner as well. It would be recommended to use the k-omega turbulence model in that situation. The k-w turbulence model has the most accurate near-wall function models.

  • @prasenjit8741
    @prasenjit8741 7 лет назад

    Sir, is the face splitting and mapped face meshing carries the same concept as block building in ICEMCFD.

  • @amitgoyal5729
    @amitgoyal5729 4 года назад

    How to polyhedral mesh adaption in fluent for airfoil cfd
    ? Any tutorial ?

  • @rattingtarkovchad
    @rattingtarkovchad 6 лет назад

    Hi there, nice video sir. Do you know why sometimes i get negatice Cl values in my simulations? Can you indicate tutorials for meshing a selig s1223?

  • @foochuangye5497
    @foochuangye5497 5 лет назад

    hi, does transient matter for simulation?

  • @tusharkarekar2562
    @tusharkarekar2562 7 лет назад

    Its a nice video. Sir,at the beginning of your video a figure of unstructured meshing of slotted airfoil at the leading edge has been displayed. Can you please help me to make structured meshing of slotted airfoil having a straight inclined cut off at the leading edge. Waiting for your reply.

    • @VDEngineering
      @VDEngineering  7 лет назад

      You need to show a picture, add a gyazo link or something.

    • @tusharkarekar2562
      @tusharkarekar2562 7 лет назад

      Sir here I have attached the gyazo link of leading edge slot of airfoil
      gyazo.com/c0675c4987584718122204dfbddbe5f7
      gyazo.com/cc5eda29f702fa358f5f22f7994cbd60

    • @VDEngineering
      @VDEngineering  7 лет назад

      gyazo.com/d6fca4eb92df2511aad41457bc4ad5dd
      Make the lines A-F and then use Face Split
      you can also try without line C and see what happens.

    • @tusharkarekar2562
      @tusharkarekar2562 7 лет назад

      Thank you Sir for your reply. While doing mapped face meshing in AF zone the following error shows" All cell zones in Fluent may be automatically set to Fluid". What is the reason for not getting mapped mesh. Sir waiting for your reply.

    • @VDEngineering
      @VDEngineering  7 лет назад

      It is not an error, just change your geometry to Fluid

  • @imranchowdhury7309
    @imranchowdhury7309 6 лет назад

    Hello Vid, I have a question regarding meshing really cambered airfoil such as a eppler 423 or selig1223 where the under camber is great. If you can help me with this it be amazing. Thanks

  • @kamilchosta5526
    @kamilchosta5526 4 года назад

    Hey, thank you for the tips. You covered a lot in this short video. I liked it. I would prefer if you did not include music (too loud for me) and sound effects that obscure your voice.

  • @earljaspermag-usara6489
    @earljaspermag-usara6489 3 года назад

    Hello sir, please make a video on 3D simulation of Vertical axis wind turbine please. I am new to ansys software and I need your help sir. Thank you

    • @VDEngineering
      @VDEngineering  3 года назад

      I don't do this anymore

    • @furkan9679
      @furkan9679 3 года назад

      @@VDEngineering this sad. May i ask why dont you do anymore

  • @manelsouguir8126
    @manelsouguir8126 5 лет назад

    thanks you very much !!!

  • @amritasharma430
    @amritasharma430 5 лет назад

    please do a structured meshing of a 3D geometry

    • @VDEngineering
      @VDEngineering  5 лет назад

      My computer does not have the resources for that, sorry!

  • @manishankaryadav7307
    @manishankaryadav7307 6 лет назад

    thank you sir

  • @imphysteacher
    @imphysteacher 4 года назад +3

    Is someone chacing you? I had do set speed to 0.25, lol