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.

The value of the flow variable at face centre (Φf) in terms of the flow variable at the owner cell’s centre (ΦC) and the neighbouring cell’s centre (Φf) as given by the face-based stencil is ________

A. (Note: g is the weighted average).
B. Φf=gC ΦC+gC Φf
C. Φf=gC ΦC+gf Φf
D. Φf=gC ΦC+(1-gC)Φf
E. Φf=gC ΦC+(1+gC)Φf
Answer» D. Φf=gC ΦC+(1-gC)Φf
Discussion
2.

The face-based stencil used for computing Φf in the Green-Gauss Gradient formula is ________

A. more accurate and needs a large stencil
B. less accurate and needs a large stencil
C. more accurate and needs a compact stencil
D. less accurate and needs a compact stencil
Answer» E.
Discussion
3.

What is the final form of the Green-Gauss gradient method for finding the gradient of Φ over element C?

A. ∇ΦC=∑f~nb(c)Φf \(\vec{S_f}\)
B. ∇ΦC=1/VC ∑f~nb(c)Φf \(\vec{S_f}\)
C. ∇ΦC=1/VC ∑f~nb(c)Φf
D. ∇ΦC=1/VC ∑f~nb(c)af Φf
Answer» C. ∇ΦC=1/VC ∑f~nb(c)Φf
Discussion