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.

Consider a source-less 3-D steady-state diffusion problem. The general discretized equation is aP ΦP = ∑anb Φnb. What is aP?

A. aP=aW+aE+aS+aN+aT+aB
B. aP=aW+aE+aS+aN
C. aP=aW+aE+aS+aN+aT
D. aP=0
Answer» B. aP=aW+aE+aS+aN
Discussion
2.

I general, for all the steady-state diffusion problems, the discretized equation can be given as aPΦ P = ∑anbΦnb-S. For a one-dimensional problem, which of these is wrong?

A. ∑anb =aT+aB
B. ∑anb =aS+ aN
C. ∑anb =aW+aE
D. ∑anb =aP+aE
Answer» E.
Discussion
3.

If aPΦP=aEΦP+aWΦW+aNΦN+aSΦS+S is the general form of a 2-D steady-state diffusion problem, what is aE by considering the following stencil?

A. \(\frac{\Gamma_E A_E}{\delta y_{PE}}\)
B. \(\frac{\Gamma_E A_E}{\delta y_{PE}}\)
C. \(\frac{\Gamma_E A_E}{\delta x_{PE}}\)
D. \(\frac{\Gamma_E A_E}{\delta x_{WP}}\)
Answer» D. \(\frac{\Gamma_E A_E}{\delta x_{WP}}\)
Discussion