• Subdivision into a forest of octrees using "p4est": Parallel AMR on Forests of Octrees




    parall-p4est.jpg



  • CUBE Sphere

cube_sphere.jpg
  • QUADTREE static mesh refinement

gridhilary.jpg

  • ELLIPTIC vs. TFI for "difficult" shapes:


TFI_swine.jpg
TFI (note the folding of the nodes around the top boundary)


elliptic_swine.jpg
Elliptic: no folding of the nodes because the maximum principle is respected (the most naive elliptic system was used to generate this image).


  • More examples of grids generated with MMesh3D:
    vertical_meshes.jpg
    Examples of vertical grid distributions available in MMesh3D. Sigma (left), hybrid (second from left), SLEVE (third), multiblock (right)


onion-peal-hexas0000.jpg
Hexahedra mesh around a "mountain"

onion-peal-WEDGE-DETAIL.jpg
Detail of prismatic elements on a "mountain"

spainTopographyColor.jpg
mryBay_AMAZING_TOPOandBATHY_2.jpg
Bathymetry and Topography of the Monterey Bay, CA. 1 min resolution

world.jpg
Example of meshed world topography


spainTopographyColor_mesh2.jpg
Detail with colored topography and bathymetry - postprocessing by Shiva Gopalakrishnan (NPS) with ParaView





spain_HEXA_4kmres.jpg


  • Examples of CFD computations that used MMesh3D for the mesh:


XVELOperturbation_bw_200x2000000.jpg
Sample run using MMesh3D: Mountain waves induced by semi-circular obstacle (Problem of Miles and Huppert, 1968)


  • 3D mountain waves: view from below. The velocity being viewed is the y-velocity. The solver used is ALYA from BSC-CNS (link)
YVELO-bott.gif