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.

Which of these time-steps are needed to approximate the value at time-step \(\frac{\Delta t}{2}\) using the second-order upwind Euler scheme for finite volume approach?

A. t-\(\frac{\Delta t}{2}\) and t-2Δ t
B. t and t-Δ t
C. t-Δ t and t-2Δ t
D. t and t-2Δ t
Answer» D. t and t-2Δ t
Discussion
2.

What is the equivalent of (ρC ΦC)t+Δt/2 using the second-order upwind Euler scheme for finite volume approach?

A. \(\frac{3}{2}\) (ρC ΦC)t+(ρC ΦC)t-Δt
B. (ρC ΦC)t+\(\frac{1}{2}\) (ρC ΦC)t-Δt
C. \(\frac{3}{2}\) (ρC ΦC)t+\(\frac{1}{2}\) (ρC ΦC)t-Δ t
D. \(\frac{1}{2}\)(ρC ΦC)t+\(\frac{1}{2}\) (ρC ΦC)t-Δ t
Answer» D. \(\frac{1}{2}\)(ρC ΦC)t+\(\frac{1}{2}\) (ρC ΦC)t-Δ t
Discussion
3.

Which of these time-steps are used to approximate the value at time-step t-\(\frac{\Delta t}{2}\) using the Crank-Nicolson scheme for finite volume approach?

A. t and t+Δ t
B. t and t-Δ t
C. t and t-\(\frac{\Delta t}{2}\)
D. t and t+\(\frac{\Delta t}{2}\)
Answer» C. t and t-\(\frac{\Delta t}{2}\)
Discussion
4.

What is the equivalent of (ρC ΦC)t+Δt/2 using the Crank-Nicolson scheme for finite volume approach?

A. \(\frac{1}{2}\)(ρC ΦC)t+\(\frac{1}{2}\)(ρC ΦC)t+Δ t
B. (ρC ΦC)t+(ρC ΦC)t+Δt
C. (ρC ΦC)t-(ρC ΦC)t+Δt
D. \(\frac{1}{2}\)(ρC ΦC)t–\(\frac{1}{2}\)(ρC ΦC)t+Δt
Answer» B. (ρC ΦC)t+(ρC ΦC)t+Δt
Discussion