GRID GENERATION AND SIMULATION IN CFD

GRID GENERATION AND SIMULATION IN CFD

INTRODUCTION:

“There are two kinds of persons in this world, the reasonable one and the unreasonable one. The reasonable person adapts himself to the surrounding. The unreasonable one adapts the surrounding to suit him. So eventually all the progress depends on the unreasonable person . ”
-GEORGE BERNARD SHAW

Computational Fluid Dynamics (CFD) has grown from a mathematical curiosity to become an essential tool in almost every branch of fluid dynamics, from aerospace propulsion to weather prediction . CFD is commonly accepted as referring to the broad topic encompassing the numerical solution by computational methods, of the governing equations which describe fluid flow, the set of Navier-Stokes equations, continuity and any additional conservation equations, e.g.- energy or species concentrations .

What do we mean when we speak of simulating a fluid flow on a computer? In simplest terms, the computer solves a series of well-known equations that are used to compute, for any point in space near an object, the velocity and pressure of the fluid flowing around that object .


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