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.

Find the nature of this system.
((1-M_ infty^2) frac{ partial u}{ partial x}+ frac{ partial v}{ partial y}=0, frac{ partial u}{ partial y}- frac{ partial v}{ partial x}=0. )

A. Hyperbolic/elliptic
B. Elliptic
C. Hyperbolic
D. Parabolic
Answer» B. Elliptic
Discussion
2.

Type of compressible flows depend upon _________

A. free stream pressure
B. free stream density
C. free stream velocity
D. free stream temperature
Answer» D. free stream temperature
Discussion
3.

The mathematical classification of inviscid flow equations are different from that of the viscous flow equations because of __________

A. absence of viscosity coefficients
B. absence of higher order terms
C. absence of convective terms
D. absence of diffusive terms
Answer» C. absence of convective terms
Discussion
4.

Find the nature of the one-dimensional heat equation.

A. Circular
B. Elliptic
C. Hyperbolic
D. Parabolic
Answer» E.
Discussion
5.

Which of these equations are used to classify PDEs?

A. (b( frac{dy}{dx})-c=0 )
B. (a( frac{dy}{dx})^2-b( frac{dy}{dx})=0 )
C. (( frac{dy}{dx})^2-( frac{dy}{dx})+1=0 )
D. (a( frac{dy}{dx})^2-b( frac{dy}{dx})+c=0 )
Answer» E.
Discussion
6.

The classification of PDEs are governed by ________

A. Their highest order derivatives
B. Their least order derivatives
C. The number of terms
D. The constants
Answer» B. Their least order derivatives
Discussion
7.

Find the nature of the second-order wave equation.

A. Hyperbolic/elliptic
B. Parabolic
C. Hyperbolic
D. Elliptic
Answer» D. Elliptic
Discussion
8.

The lines along which the derivatives of the dependent variables are indeterminate are called ___________

A. parabolic lines
B. characteristic lines
C. hyperbolic lines
D. transition lines
Answer» C. hyperbolic lines
Discussion
9.

Which type of flow does the Laplace s equation (( frac{ partial^2 Phi}{ partial x^2}+ frac{ partial^2 Phi}{ partial y^2}=0) ) belong to?

A. Hyperbolic/ Parabolic
B. Hyperbolic
C. Parabolic
D. Elliptic
Answer» E.
Discussion
10.

Which of these is not a type of flows based on their mathematical behaviour?

A. Circular
B. Elliptic
C. Parabolic
D. Hyperbolic
Answer» B. Elliptic
Discussion