Characteristics Finite Element Methods in Computational Fluid Dynamics

Characteristics Finite Element Methods in Computational Fluid Dynamics

Author
Joe Iannelli
Publication Year
2006
Publisher
Springer
Language
English
Document Type
Book
Faculty / Subject Heading
Engineering

This book details a systematic characteristics-based finite element procedure to investigate incompressible, free-surface and compressible flows. The fluid dynamics equations are derived from basic thermo-mechanical principles and the multi-dimensional and infinite-directional upstream procedure is developed by combining a finite element discretization of a characteristics-bias system with an implicit Runge-Kutta time integration. For the computational solution of the Euler and Navier Stokes equations, the procedure relies on the mathematics and physics of multi-dimensional characteristics. As a result, the procedure crisply captures contact discontinuities, normal as well as oblique shocks, and generates essentially non-oscillatory solutions for incompressible, subsonic, transonic, supersonic, and hypersonic inviscid and viscous flows.


Keywords: Engineering / Compressible Flows / Computational Fluid Dynamics / Finite Elements / Free-Surface Flows / Incompressible Flows / Multi-Dimensional, Infinite-Directional Upwind / Reactive Flows / Convection / Fluid dynamics / Fluid mechanics