CFD Training Assessment

Which of the following is a governing equation in fluid mechanics?

• Fourier's Law

• Navier-Stokes Equation

• Hooke's Law

• Ohm's Law

Continuity equation ensures conservation of:

• Energy

• Mass

• Momentum

• Heat

CFD stands for:

• Computational Flow Data

• Computational Fluid Dynamics

• Critical Fluid Domain

• Computerized Flow Design

The three fundamental conservation laws in CFD are:

• Mass, Heat, Pressure

• Mass, Momentum, Energy

• Heat, Force, Viscosity

• Velocity, Density, Force

Which discretization method is widely used in CFD?

• Finite Difference Method

• Finite Volume Method

• Finite Element Method

• All of the above

Reynolds number is the ratio of:

• Inertial forces to viscous forces

• Pressure forces to viscous forces

• Inertial forces to gravitational forces

• Viscous forces to elastic forces

Which type of mesh is most commonly used in CFD for complex geometries?

• Structured grid

• Unstructured grid

• Cartesian grid

• Polar grid

In CFD, boundary conditions are required because:

• They stabilize the solution numerically

• They define physical constraints of the problem

• They reduce mesh size

• They replace conservation equations

Which turbulence model is most widely used for industrial CFD problems?

• Direct Numerical Simulation (DNS)

• k-ε model

• Large Eddy Simulation (LES)

• Potential Flow Model

Pressure-velocity coupling in CFD is usually handled by:

• SIMPLE algorithm

• Euler method

• Runge-Kutta method

• Newton-Raphson method