Unstructured Mesh Generation including Directional Reenement for Aerodynamic Flow Simulation

نویسندگان

  • J Peraire
  • K Morgan
چکیده

A method for generating directionally reened unstructured tetrahedral meshes is presented. The motivation is the need to eeciently mesh the complex computational domains which are frequently encountered in aerospace applications. In this context, the method is applicable to the construction of meshes suitable for the simulation of inviscid and viscous aerodynamic ows. Minimum user intervention is required and the user speciied stretching distribution is achieved by locally modifying an existing mesh. The interfacing of the mesh generation procedure with available geometry modellers is discussed and certain implementation issues are also addressed. Examples are presented which illustrate the performance of the proposed methodology.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Unstructured Mesh Generation for 3 Dviscous

In this paper we review the procedures which are currently available for the generation of unstructured meshes suitable for use in the simulation of high Reynolds number viscous ows. For such simulations, computational eeciency generally dictates the requirement for the use of highly stretched cells in viscous dominated regions. Meshes of this type cannot be directly generated by the classical ...

متن کامل

Simulation of Store Separation using Low-cost CFD with Dynamic Meshing

The simulation of the store separation using the automatic coupling of dynamic equations with flow aerodynamics is addressed. The precision and cost (calculation time) were considered as comparators. The method used in the present research decreased the calculation cost while limiting the solution error within a specific and tolerable interval. The methods applied to model the aerodynamic force...

متن کامل

An automatic unstructured grid generation method for viscous flow simulations

High aspect-ratio grids are required for accurate solution of boundary layer and wake flow. An approach for the efficient generation f isotropic and stretched viscous unstructured grids is introduced in this paper. The proposed grid generation algorithm starts with very coarse initial grid. In far field regions, isotropic cells of excellent quality are produced using a combination of point inse...

متن کامل

Molecular dynamics-based unstructured grid generation method for aerodynamic applications

A new approach to triangular mesh generation based on the molecular dynamics method is proposed. Mesh nodes are considered as interacting particles. After the node placement by molecular dynamics simulation, well-shaped triangles or tetrahedra can be created after connecting the nodes by Delaunay triangulation or tetrahedrization. Some examples are considered in order to illustrate themethod’s ...

متن کامل

ذخیره 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 نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1997