Explore topic-wise MCQs in Computational Fluid Dynamics.

This section includes 10 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.

Which of these represent the discretization indexing?

A. Φi,j+1, Φi,j-1
B. Φe, Φw
C. Φn+1, Φn-1
D. Φi+1,j, Φi-1,j
Answer» C. Φn+1, Φn-1
Discussion
2.

The values of the flow variables at the faces can be calculated by _____________ in a structured grid.

A. Interpolation
B. Taylor series
C. Fourier series
D. Shape functions
Answer» B. Taylor series
Discussion
3.

In structured grids, computer memory is saved by ____________

A. multi-dimensions
B. localization
C. linearization
D. vectorization
Answer» E.
Discussion
4.

Consider the two 2-D cells given here. Which of these is correct? (Hint: Each face of an element points outside).

A. S1i,j-1=S2i,j
B. S1i,j-1=-S2i,j
C. S3i,j-1=-S4i,j
D. S3i,j-1=S4i,j
E. .a) S1i,j-1=S2i,jb) S1i,j-1=-S2i,jc) S3i,j-1=-S4i,jd) S3i,j-1=S4i,j
Answer» D. S3i,j-1=S4i,j
Discussion
5.

Which is correct?

A. Local index has a single index and global index has multiple indices
B. Global index has a single index and local index has multiple indices
C. Both local and global indices have a single index
D. Both local and global indices have multiple indices
Answer» C. Both local and global indices have a single index
Discussion
6.

In a two-dimensional grid, the elements are ____________ in shape and have ___________ neighbours.

A. Quadrilateral, 4
B. Cube, 6
C. Cube, 4
D. Cuboid, 4
Answer» B. Cube, 6
Discussion
7.

In a three-dimensional structured grid, an element has ____________ faces and ____________ vertices.

A. 8, 6
B. 8, 8
C. 4, 4
D. 6, 8
Answer» E.
Discussion
8.

Topological information is embedded in a structured mesh through ___________

A. neighbours
B. boundaries
C. indices
D. discretization
Answer» D. discretization
Discussion
9.

Structured grids give ____________ and need ____________

A. no access to elements, less memory for storage
B. easy access to elements, less memory for storage
C. easy access to elements, more memory for storage
D. no access to elements, more memory for storage
Answer» C. easy access to elements, more memory for storage
Discussion
10.

For a regular structured grid, which of these statements is true?

A. Each interior cell is connected to the same number of neighbours
B. Each cell is connected to the same number of neighbours
C. Each boundary cell is connected to the same number of neighbours as an interior cell
D. Each direction has the same number of cells
Answer» B. Each cell is connected to the same number of neighbours
Discussion