An immersed boundary method using unstructured anisotropic mesh adaptation combined with level-sets and penalization techniques
نویسندگان
چکیده
Article history: Received 30 May 2012 Received in revised form 2 May 2013 Accepted 19 August 2013 Available online 25 September 2013
منابع مشابه
Time Domain Analysis of the Ventilation around the Partial Immersed Propeller Using Sliding Mesh Method
In this paper a computational method is presented for predicting the unsteady hydrodynamic forces acting on partial immersed propeller (SPP). In order to simulate the unsteady viscous flow around a SPP, a Reynolds-Averaged Navier–Stokes (RANS) solver is used. The time-accurate calculations are made by applying the sliding mesh method. Structured and unstructured mesh techniques are used. ...
متن کاملAdaptive anisotropic meshing and implicit boundary for general multiphase computation
Complex geometries can be embedded in a mesh by using an implicit boundary representation as in the level set method or any equivalent scalar field. Such approaches enable a much more flexible way for building complex multi-domain simulations than classical body-fitted techniques that required to constraint boundaries and interfaces into the volume mesh. However, the geometrical accuracy of imp...
متن کاملAnisotropic Mesh Adaptation for Transonic and Supersonic Flow Simulation
We present an efficient tool for the numerical simulation of high speed flows in two and threedimensional domains. The space discretization is carried out with the finite volume method on unstructured triangular and tetrahedral meshes. In order to achieve sufficiently accurate capturing of shock waves, we have applied the anisotropic mesh adaptation technique which seems to be very suitable for...
متن کاملAdaptive Solution of Steady Two Dimensional Flow on an Unstructured Grid
Two-dimensional Euler equations have been solved on an unstructured grid. An upwind finite volume scheme, based on Roes flux difference splitting method, is used to discretize the equations. Using advancing front method, an initial Delaunay triangulation has been made. The adaptation procedure involves mesh enrichment coarsening in regions of flow with high low gradients of flow properties, acc...
متن کاملConstructing Anisotropic Geometric Metrics using Octrees and Skeletons
A three-dimensional anisotropic metric for geometry-based mesh adaptation is constructed from a triangulated domain definition. First, a Cartesian background octree is refined according to not only boundary curvature but also a local separation criterion from digital topology theory. This octree is then used to extract the domain skeleton through a medial axis transform. Finally, an efficient a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- J. Comput. Physics
دوره 257 شماره
صفحات -
تاریخ انتشار 2014