Vortex lattice and panel methods

Discussion in 'Hydrodynamics and Aerodynamics' started by Pablo Sopelana, Jun 4, 2021.

  1. Pablo Sopelana
    Joined: Mar 2021
    Posts: 18
    Likes: 4, Points: 3
    Location: Helsinki

    Pablo Sopelana Junior Member

    We are going to focus during the next weeks on developing new calculation templates about keel, rudders, hydrofoils, wingsails, and sails.

    We are just starting to approach the lattice and panel methods (thank you @tspeer for pointing us out in this direction).

    Is there anybody familiar with these calculation methods? Have you been using commercial software or own-developed code to solve them? Any particular pain (about the inputs, results, visualization, friendliness of use, etc.)? Regarding our approach, do you have any hints or suggestions? Anything (features, results, visualizations, etc.) that you particularly would like us to consider?

    Thanks!
     
  2. Erwan
    Joined: Oct 2005
    Posts: 410
    Likes: 21, Points: 18, Legacy Rep: 97
    Location: France

    Erwan Senior Member

    Hi Pablo,

    You could have a look at FLOW5 https//flow5.tech
    (sorry cannot cut and past the Internet address, I dont know why)
    Scroll down until Online Documentation
    and then do not hesitate to click on
    Thick Solid Sails: The Windsurf Example

    It might be helpfull to define/refine your own project.

    Cheers

    Flow5 seems to be the last generation of software after XFOIL / XFLR5 Sail7/Flow5, the formers were free
     
  3. zstine
    Joined: Sep 2013
    Posts: 74
    Likes: 9, Points: 8, Legacy Rep: 10
    Location: New Jersey

    zstine Junior Member

    I used AVL ( AVL http://web.mit.edu/drela/Public/web/avl/ ) to do Vortex Lattice analysis. similar program style to Xfoil, if you are familiar with that. Benjamin Kelm has a good, detailed, 4 part tutorial on youtube



    and I was able to figure out how to model my hydrofoil boat and get usable results in a day or 2 despite being pretty clueless starting out.
     
  4. Pablo Sopelana
    Joined: Mar 2021
    Posts: 18
    Likes: 4, Points: 3
    Location: Helsinki

    Pablo Sopelana Junior Member

    Thank you very much @Erwan and @zstine ! Pretty much appreciate it!

    I didn't know Flow5, but was aware of Benjamin Kelm's videos, although had not had yet the opportunity to watch them.

    I am very excited that last Friday, an excellent reinforcement joined the team. Besides being a CFD application engineer, he is also passionate about code development and efficiency optimization through numerical simulation. We are just starting to focus on these methods. We expect to have more insights into them by the end of this month, so we can decide whether we go for them, and if so, how to proceed.
     
  5. Erwan
    Joined: Oct 2005
    Posts: 410
    Likes: 21, Points: 18, Legacy Rep: 97
    Location: France

    Erwan Senior Member

    Pablo,

    Should add a FEA/ structural engineering App to your CFD App, or team-up with, structural engineers

    Whether it is for an Hydrofoil or a WingSail, Structural issues can kill any relevant concepts.

    Cheers

    EK
     

  6. Pablo Sopelana
    Joined: Mar 2021
    Posts: 18
    Likes: 4, Points: 3
    Location: Helsinki

    Pablo Sopelana Junior Member

    Thanks Erwan, I take it into account!
     
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