Explore topic-wise MCQs in Computational Fluid Dynamics Questions and Answers.

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Computational Fluid Dynamics Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.

What is the range of y+ in the log-law layer?

A. 30<y+<500
B. 20<y+<500
C. 30<y+<400
D. 20<y+<400
Answer» B. 20<y+<500
Discussion
2.

What is the range of y+ in the viscous sub-layer?

A. 0<y+<20
B. 0<y+<5
C. 0<y+<10
D. 0<y+<15
Answer» C. 0<y+<10
Discussion
3.

What is u+?

A. The ratio of velocity parallel to the wall to the friction velocity
B. The ratio of the friction velocity to velocity parallel to the wall
C. The ratio of free-stream velocity and friction velocity
D. The ratio of friction velocity and free-stream velocity
Answer» B. The ratio of the friction velocity to velocity parallel to the wall
Discussion
4.

Which of these laws define the dimensionless quantities u+ and y+?

A. Velocity-defect law
B. Log-law
C. Newton’s law of viscosity
D. Law of the wall
Answer» E.
Discussion