IMMERSED BOUNDARY SURFACE METHOD IN FOAM-EXTEND
This paper describes a new method of handling non-conforming immersed boundaries within the background mesh with minimal level of approximation.The immersed boundary surface is represented by a triangulated surface mesh which interacts with the polyhedral background body-fitted mesh only at the level of implicit and explicit discretisation operators.While no new cells or faces are introduced in the geometry,the Immersed Boundary Surface method accounts for the presence of a non-conforming patch in the manner consistent with the cut cell approach.Surface data such as pressure or viscous stress is evaluated on an adaptively coarsened representation of the triangulated surface,created via intersection with the background mesh.The immersed boundary surface method is validated against body-fitted meshes for laminar,turbulent and free surface flows on static and moving mesh/surface cases and deployed with a new implementation of adaptive mesh refinement.
Immersed Boundary Non-Conforming Mesh Direct Cell Cutting Unstructured Mesh Finite Volume OpenFOAM
HRVOJE JASAK
Wikki Ltd,United Kingdom;University of Zagreb,Croatia
国际会议
The 13th OpenFOAM Workshop(第13届OpenFOAM国际研讨会)
上海
英文
55-59
2018-06-24（万方平台首次上网日期，不代表论文的发表时间）