This set of Computational Fluid Dynamics Multiple Choice Questions & Answers (MCQs) focuses on “Navier Stokes Equation”. 1. What are the independent variables in the Navier-Stokes equations? a) x, y, z, ρ b) x, y, z, τ c) x, y, z, t, ρ d) x, y, z, t 2. What are the dependent variables in … Read more
This set of Computational Fluid Dynamics Multiple Choice Questions & Answers (MCQs) focuses on “Governing Equations – Stress and Strain Tensor”. 1. Which among these forces used in momentum equation is a tensor? a) Gravitational forces b) Pressure forces c) Viscous forces d) Electromagnetic forces 2. What do the two subscripts of stress tensors represent? … Read more
This set of Computational Fluid Dynamics Multiple Choice Questions & Answers (MCQs) focuses on “Momentum Equation”. 1. What is the physical principle behind momentum equation? a) Newton’s second law of motion b) Newton’s first law of motion c) Zeroth law of thermodynamics d) First law of thermodynamics 2. Which of these statements hold true? a) … Read more
This set of Computational Fluid Dynamics written test Questions & Answers focuses on “Continuity Equation – Infinitesimally Small Element”. 1. Which of the equations suit this model? a) b) c) d) 2. Consider an infinitesimally small fluid element with density ρ (of dimensions dx, dy and dz) fixed in space and fluid is moving across … Read more
This set of Computational Fluid Dynamics Multiple Choice Questions & Answers (MCQs) focuses on “Continuity Equation – Finite Control Volume”. 1. The physical principle behind the continuity equation is __________ a) Mass conservation b) Zeroth law of thermodynamics c) First law of thermodynamics d) Energy conservation 2. Which of these models directly gives this equation? … Read more
This set of Computational Fluid Dynamics Multiple Choice Questions & Answers (MCQs) focuses on “General Transport Equation”. 1. The general equation applicable to all the properties is called the general transport equation. What does this term ‘transport’ signify? a) The equation is applicable to all properties b) The equation can be transformed easily c) The … Read more
This set of Computational Fluid Dynamics Multiple Choice Questions & Answers (MCQs) focuses on “Governing Equations – Substantial Derivative”. 1. How is the substantial derivative of velocity vector denoted? a) b) c) d) 2. Expand the substantial derivative Dρ/Dt. a) b) c) d) 3. Substantial derivative applies to ____________ a) Both stationary and moving models … Read more
This set of Computational Fluid Dynamics Puzzles focuses on “Governing Equations – Velocity Divergence”. 1. In mathematical terms, how can the divergence of a velocity vector be represented? a) b) c) d) 2. For a control volume moving along with the flow, which of these properties is a constant? a) Volume b) Shape c) Mass … Read more
This set of Computational Fluid Dynamics Multiple Choice Questions & Answers (MCQs) focuses on “Governing Equations – Eulerian and Lagrangian Conservation Laws”. 1. The principle of conservation is applicable to _______ systems. a) isolated system b) closed system c) open system d) all the systems irrespective of its type 2. The fluid is subdivided into … Read more
This set of Computational Fluid Dynamics Multiple Choice Questions & Answers (MCQs) focuses on “Governing Equations – Flow Models”. 1. What does this diagram represent? a) Finite control volume moving along with the flow b) Stationary finite control volume c) Infinitesimally small element with the fluid passing through it d) Infinitesimally small element moving along … Read more
