Coordinate Free Programming of Computational Fluid Dynamics Problems

Coordinate free programming of computational fluid dynamics problems

It has long been acknowledged that the development of scientific applications is in need of better software engineering practices. Here we contrast the difference between conventional software development of CFD codes with a method based on coordinate free mathematics. The former approach leads to programs where different aspects, such as the discretisation technique and the coordinate systems,...

Tensor Abstraction Programming of Computational Fluid Dynamics Problems∗

It has long been acknowledged that scientific software is in need of better software engineering practices. Here we contrast the difference between conventional software development of CFD codes and an abstraction method based on tensor mathematics. The former approach leads to programs where different aspects, such as the discretisation technique and the coordinate systems, can get entangled w...

Hydrodynamic Improvement of underwater glider by Computational Fluid Dynamics method

Gliders are new marine vehicles which have research and military uses and they move by sequent diving and climbing. Suitable design of its main body and wings are important for the most advance velocity. hydrodynamic design variables are main body form, wings (cross section, dimensions, shape, longitudinal and vertical position) and hydrostatic parameters (static trim angle, amount of added for...

Application of genetic algorithms to problems in computational fluid dynamics

Unsteady computational fluid dynamics modeling of free-flight projectile aerodynamics

This paper describes a new multidisciplinary computational study undertaken to model the flight trajectories and the free-flight aerodynamics of both a finned projectile at supersonic velocities and a spinning projectile at subsonic speeds with and without aerodynamic flow-control. Actual flight trajectories are computed using an advanced coupled computational fluid dynamics (CFD)/rigid body dy...