Computational Fluid Dynamics (CFD)

Computational Fluid Dynamics (CFD)

ABSTRACT

The sleek & beautiful aircraft roles down the run away, takes off & rapidly climbs out of sight within a minute, this same aircraft has accelerated to hypersonic speed; still within atmosphere. Its powerful supersonic engine continues to propel aircraft with velocity near 26000 ft/s orbital velocity and vehicle simply coasts into low earth orbit. Is this the stuff of dreams? Not really; indeed this is possible due to CFD.

CFD is the art of replacing the differential equation governing the fluid flow, with a set of algebraic equations. Which in turn can be solved with aid of digital computer to get an approximate solution.

The physical aspects of any fluid flow are governed by three fundamental principles (1) Mass is conserved (continuity equation)

(2) Newton’s second law (Navier-Stokes equations)

(3) Energy is conserved (energy equation)

CFD is a research tool & playing a strong role as design tool, in aerodynamics as well as non-aerospace applications like automobile, flow field inside I.C. engines, industrial manufacturing (actual behavior of molten metal in mould ), civil & environmental Engg.

In a next decade CFD will become a critical technology for aerodynamic design & on other hand concurrent Engg. is possible by drastic changes, shortening of design process & optimization of air vehicle system in terms of overall economical performance. CFD is growth industry with an unlimited numbers of new application & new ideas just waiting in future.

This seminar includes Discretization , Finite Difference Method (FDM), Finite Volume Method (FVM), Finite Element Method (FEM), Grid generation),Simulation & greater advantage of CFD over wind tunnel testing. This seminar also highlights on “AERODYNAMIC DESIGN OF FORMULA ONE RACING CAR BY CFD” (simulation technique)