Explore topic-wise MCQs in Computational Fluid Dynamics.

This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Computational Fluid Dynamics knowledge and support exam preparation. Choose a topic below to get started.

1.

Along the downwind line of the NVD, the values of _____________ are changed to make the system stable.

A. ac
B. (l,k)
C. Φc
D. Φf
Answer» C. Φc
Discussion
2.

What is DWFf for the second-order upwind scheme?

A. \(\frac{\tilde{\phi_c}}{2(1-\tilde{\phi_c})}\)
B. \(\frac{1}{2(1-\tilde{\phi_c})}\)
C. \(\frac{\tilde{\phi_c}}{4(1-\tilde{\phi_c})}\)
D. \(\frac{1}{4(1-\tilde{\phi_c})}\)
Answer» B. \(\frac{1}{2(1-\tilde{\phi_c})}\)
Discussion
3.

The deferred correction source term of the NWF method using he normalized interpolation profile \(\tilde{\phi_f}=l\tilde{\phi_c}+k\) is _________

A. (1-l-k)Φu
B. (k)Φu
C. (-l)Φu
D. (l-k)Φu
Answer» B. (k)Φu
Discussion
4.

The value of DWFf for the central difference scheme is __________

A. 1
B. \(\frac{1}{3}\)
C. \(\frac{1}{4}\)
D. \(\frac{1}{2}\)
Answer» E.
Discussion
5.

For a scheme modelled using the DWF method, the diagonal coefficient becomes zero when ___________

A. DWFf > 0
B. DWFf > 1
C. DWFf > 0.5
D. DWFf > 2
Answer» D. DWFf > 2
Discussion
6.

DWFf for the FROMM scheme is ___________

A. \(\frac{1}{2(1-\tilde{\phi_c})}\)
B. \(\frac{1}{4(1-\tilde{\phi_c})}\)
C. \(\frac{1}{2}\)
D. \(\frac{1}{4}\)
Answer» C. \(\frac{1}{2}\)
Discussion
7.

The value of DWF for the downwind scheme is __________

A. 0
B. 1
C. 2
D. 3
Answer» C. 2
Discussion
8.

The value of the Downwind Weighing Factor (DWF) lies between ___________

A. 0≤DWF≤∞
B. DWF≥0
C. 0≤DWF≤1
D. DWF≤1
Answer» D. DWF≤1
Discussion
9.

The Downwind Weighing Factor in the normalized form is given by __________

A. \(\frac{\tilde{\phi_f}-\tilde{\phi_c}}{1-\tilde{\phi_c}}\)
B. \(\frac{\tilde{\phi_c}-\tilde{\phi_f}}{1-\tilde{\phi_c}}\)
C. \(\frac{\tilde{\phi_f}-\tilde{\phi_c}}{1-\tilde{\phi_f}}\)
D. \(\frac{\tilde{\phi_c}-\tilde{\phi_f}}{1-\tilde{\phi_f}}\)
Answer» B. \(\frac{\tilde{\phi_c}-\tilde{\phi_f}}{1-\tilde{\phi_c}}\)
Discussion