questions about computational fluid dynamics

jyothi

hi iam interested in cfd so plese send me the basics of these questions as soon as possble by one day so kind of u

1- Why is the need to apply CFD? 2- What are the major advantages and disadvantages of using CFD? 3- What is modelling a physical process means? Why is it essential? 4- What are these items mean in terms of CFD: Discritization, Numerical Grid, Initial Conditions, Boundary Conditions, Sweep, Convergence and Turbulence Modelling.

PART II The overhead projector shown in Figure (1) was found to have an overheating problem of its glass flatbed due to prolonged use. As a computational fluid dynamist, you were asked to study the problem, simulate it and suggest solutions. Figure (1) Simulate the system on the Phoenics CFD Package and present your results in a report format. Make all the necessary assumptions.