Category Archives: Computational Fluid Dynamics MCQ

This set of Computational Fluid Dynamics Multiple Choice Questions & Answers (MCQs) focuses on “Incompressible Flows – Staggered Grid”. 1. The staggered grid can be used to overcome __________ a) decoupling of pressure and velocities b) coupling of pressure and velocities c) interpolation problems d) boundedness problems 2. Which of these statements is correct when … Read more

This set of Computational Fluid Dynamics Multiple Choice Questions & Answers (MCQs) focuses on “Convection-Diffusion Problems – Error Sources”. 1. Numerical diffusion causes __________ a) smearing of sharp gradients b) oscillations c) undershoots and overshoots d) inaccuracy 2. Which of these ways can be used to overcome stream-wise numerical diffusion? a) Decreasing the order of … Read more

This set of Computational Fluid Dynamics Multiple Choice Questions & Answers (MCQs) focuses on “Convection-Diffusion Problems – FROMM Scheme”. 1. Which of these profiles is used by the FROMM scheme? a) Φ(x)=k0+k1 (x-xc)+k2 (x-xc)2 b) Φ(x)=k1 (x-xc )+k2 (x-xc)2 c) Φ(x)=k0+k1 (x-xc) d) Φ(x)=k1 (x-xc) 2. What is the order of accuracy of the FROMM … Read more

This set of Computational Fluid Dynamics Multiple Choice Questions & Answers (MCQs) focuses on “Convection-Diffusion Problems – QUICK Scheme”. 1. What does QUICK stand for? a) Quadratic Upstream Interpolation for Convective Kinetics b) Quadratic Upstream Interval for Convective Kinetics c) Quadratic Upwind Interval for Convective Kinetics d) Quadratic Upwind Interpolation for Convective Kinetics 2. Which … Read more

This set of Computational Fluid Dynamics Multiple Choice Questions & Answers (MCQs) focuses on “Convection-Diffusion Problems – Second Order Upwind Scheme”. 1. The Second Order Upwind (SOU) scheme uses ____________ a) asymmetric linear profile b) symmetric linear profile c) asymmetric quadratic profile d) symmetric quadratic profile 2. The value at the face in the second … Read more

This set of Computational Fluid Dynamics Multiple Choice Questions & Answers (MCQs) focuses on “Convection-Diffusion Problems – Hybrid Differencing Scheme”. 1. The hybrid differencing scheme is a combination of ____________ and ___________ a) upwind and downwind schemes b) downwind and central difference schemes c) central difference and upwind schemes d) two types of central difference … Read more

This set of Computational Fluid Dynamics Multiple Choice Questions & Answers (MCQs) focuses on “Convection-Diffusion Problems – Central Difference Schemes”. 1. Consider the following stencil. What is Φe as given by the central difference scheme? (Note: Φ represents the flow variable). a) b) c) d) 2. Consider the following stencil. Assume that the grid is … Read more

This set of Computational Fluid Dynamics Multiple Choice Questions & Answers (MCQs) focuses on “Convection-Diffusion Problems – Upwind and Downwind Schemes”. 1. The upwind scheme is suitable for _____________ a) convection term b) diffusion term c) both convection and diffusion terms d) either convection or diffusion term 2. The upwind scheme is dependent on the … Read more

This set of Advanced Computational Fluid Dynamics Questions and Answers focuses on “Diffusion Problem – Least-Square Gradient for Cartesian Grids”. 1. Which of these statements is true? a) The Gauss-Gradient method is a special case of the least-square gradient method b) The least-square gradient method is a special case of the Gauss-Gradient method c) The … Read more

This set of Basic Computational Fluid Dynamics Questions and Answers focuses on “Diffusion Problem – Green-Gauss Gradient for Cartesian Grids”. 1. To get the gradient of the flow variable using the Green-Gauss Theorem, which of these theorems is used? a) Mean value theorem b) Stolarsky mean c) Racetrack principle d) Newmark-beta method 2. What is … Read more