Rotating Marine Propeller in Water

JamesJames
in DualSPHysics v4.2
Hi All, is anyone has any idea that whether DSPH can be used to simulate rotating marine propeller in water?

Comments

  • Asalih3dAsalih3d
    It is possible. Wait for version 4.4 to make it even easier because of inlet and DOF movement.

    Kind regards
  • AlexAlex
    However those types of application can be accurate solved by mesh-based methods such as OpenFOAM: https://github.com/OpenFOAM/OpenFOAM-2.1.x/tree/master/tutorials/incompressible/pimpleDyMFoam/propeller

    Please, be aware the SPH simulations should be performed specially when other models present limitations

    Regards
  • JamesJames
    @Alex For propeller cavitation, it seems currently openFOAM can not give out accurate results, i was thinking whether SPH can provide some alternatives to this.

    Further more, what do you think the typical application of SPH could be?
  • AlexAlex
    Q: what do you think the typical application of SPH could be?
    R: just several examples:
    i) interaction of extreme waves with floating devices where violent non-linear impact occurs: slamming, green overtopping, large displacement
    ii) interaction between dam-breaks and small solids (debris flows)
    iii) interaction between waves and blocks of the outer layer of a porous breakwater that can be moved due to wave force
    iv) multiphase flows soil-water with large deformations

    However the problem of propeller will need a SPH code with:
    - accurate turbulence model
    - boundary layer perfectly defined
    - dynamic particle refinement
    Other codes include already these functionalities that will help with the propeller, however most of them are not open source

    Regards
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