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

This section includes 3 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.

Let x, y be the coordinates in the physical domain and ξ, η be the coordinates in the computational domain. Which of these is correct for adaptive grids?

A. \(\frac{\partial\xi}{\partial x}≠1 \)
B. \(\frac{\partial\xi}{\partial x}≠0 \)
C. \(\frac{\partial\xi}{\partial t}≠0 \)
D. \(\frac{\partial\xi}{\partial t}≠1 \)
Answer» D. \(\frac{\partial\xi}{\partial t}≠1 \)
Discussion
2.

Consider a divergent nozzle as shown in the figure.

A. Let x, y be the coordinates in the physical domain and ξ, η be the coordinates in the computational domain. Which of these equations can give the best-suited grid for this system?
B. ξ=x; η = y×ys
C. ξ=x×ys; η=y×ys
D. \(\xi=\frac{x}{y_s};\eta=\frac{y}{y_s}\)
E. \(\xi=x;\eta=\frac{y}{y_s}\)
Answer» E. \(\xi=x;\eta=\frac{y}{y_s}\)
Discussion
3.

Let x, y be the coordinates in the physical domain and ξ, η be the coordinates in the computational domain. In which of these cases, the horizontal lines are stretched and the vertical lines are equally spaced?

A. ξ=x; η=ln⁡(y+1)
B. ξ=ln⁡(x+1); η=y
C. ξ=x; η=y
D. ξ=ln⁡(x+1); η=ln⁡(y+1)
Answer» B. ξ=ln⁡(x+1); η=y
Discussion