Computational fluid dynamics (CFD) has become critical to the design and analysis of aerospace vehicles. Parallel grid adaptation that resolves multiple scales with anisotropy is identified as one challenges in CFD Vision 2030 Study increase capacity capability simulation. The study also cautions computer architectures are undergoing a radical change, dramatic increases algorithm concurrency wi...

A new method for adaptive refinement of unstructured grids has been developed. This method ensures preservation of the element quality and the structural anisotropies of the initial grid. The flexibility of unstructured grids in combination with the implemented error estimation provides a powerful basis for three-dimensional simulation of tiine dependent processes.

Elliptic differential equations are derived for the generation of structured meshes and difference equations for the generation of smooth hybrid meshes from metric identity. A parabolic procedure is used to march the solution of the difference equations simultaneously for both types of meshes away from surface patches meshed by quads or triangles. An aerodynamic application for the ONERA M6 win...

The paper extends weighted essentially non-oscillatory (WENO) methods to three dimensional mixed-element unstructured meshes, comprising tetrahedral, hexahedral, prismatic and pyramidal elements. Numerical results illustrate the convergence rates and non-oscillatory properties of the schemes for various smooth and discontinuous solutions test cases and the compressible Euler equations on variou...

A new graphics package has been developed for the vi-sualization of three-dimensional engineering and scientiic data. Unlike existing packages, it can handle a wide variety of structured and unstructured grids, and deals with generic scalar and vector data, making it suitable for a wide range of physical applications. An important feature of the package is the ability to view unsteady data in e...