CFD VAC- 2024 25 Even

What is CFD?

• a technique/method for analyzing fluid flow systems using a wind tunnel

• a technique/method for analyzing fluid flow systems using a computer

• a technique/method for analyzing air flow using a wind tunnel

• Colourful Fluid Dynamics

What is Computational Fluid Dynamics (CFD)?

• A branch of chemistry that deals with the composition of fluids

• A branch of mathematics that studies the behavior of fluids in motion

• A branch of physics that focuses on the properties of fluids at rest

• A branch of fluid mechanics that uses numerical analysis and data structures to analyze and solve problems involving fluid flows

CFD is conducted in 3 main stages. Which answer is incorrect?

• Pre-processing

• Calculation

• Post-processing

• Generating grid/mesh

Which one is NOT the applications of CFD?

• Water flow inside a pipe

• Blood flow through veins

• Car damage due to impact during crash

• Aerodynamics of F1 car

Which flow visualization options are available in CFD?

• XY Plot

• Pressure contour

• Velocity vector

• All answers are correct

What is the fundamental basis of almost all CFD problems?

• The Euler equations

• The Navier–Stokes equations

• The linearized potential equations

• The full potential equations

Conservation of momentum equation is also called as

• Navier Stokes equation

• continuity equation

• Bernoulli Equation

• Euler equation

Which one of the following is NOT a commercial CFD software

• Ansys Fluent

• OpenFoam

• COMSOL

• ORIGIN

Which of the following method can NOT be used for calculations in CFD?

• Finite Element Method

• Finite Volume Method

• Finite Area Method

• Finite Difference

  Method

Which part is NOT available in Navier stokes equation?

• Local acceleration

• Convective acceleration

• Friction loss term

• Pressure gradient term