Advance Computational Fluid Dynamics — Summer 2022

Explain three different approaches of fluid dynamics?

Differentiate Uniform grid and Non-Uniform grid.

Explain the concept of Reynolds Averaging.

What is Multi Block structured grid?

Concept of Adaptive grid.

Why an implicit method is accurate than Explicit method for complex flow?

Explain the method for transformation of 2D partial differential equation into algebraic equation.

Explain Symmetry boundary condition.

Enlist the factors affecting of grid transformation.

Explain Delalunay triangulation method for unstructured grid generation.

Explain the Eigen value method for classification of partial differential equations.

Explain Dirichalet boundary condition with suitable example.

Advantages over Delalunay and Advancing front unstructured grid generation technique.

Define: Transition and Turbulent flow.

Advantages and Disadvantages of k−𝜔 turbulent model.

What is Boundary Condition? State its importance in solving fluid flow problem.

Difference between the Free-slip and Moving wall boundary condition.

Explain the concept of Turbulent kinetic energy and dissipation effect.

Explain Large Eddy Simulation technique.

Advantages of Reynold stress equation Models over mixing length model.

List out the necessity of turbulence modeling.

Explain RANS model of turbulent flow.

Characteristics and Important features of Turbulent flow.

General properties of turbulent quantities.

What is the step wise procedure for solving pressure based CFD problem?