Computational Fluid Dynamics (CFD) in design MCQs – Aerospace

1. “Computational Fluid Dynamics (CFD)” is primarily used in aerospace to:
(A) Analyze and simulate fluid flow around aircraft components
(B) Increase the weight of the aircraft
(C) Simplify the aerodynamic design
(D) Enhance the visual appearance of components

2. “Mesh generation” in CFD refers to:
(A) Creating a computational grid to discretize the fluid domain
(B) Simplifying the aerodynamic shape of the aircraft
(C) Increasing the size of the aircraft components
(D) Enhancing the visual design of the aircraft

3. “Boundary conditions” in CFD simulations are used to:
(A) Define the behavior of the fluid at the edges of the computational domain
(B) Simplify the design of the control systems
(C) Increase the complexity of the aerodynamic shape
(D) Reduce the weight of the aircraft

4. “Navier-Stokes equations” are fundamental in CFD because they:
(A) Describe the motion of fluid substances
(B) Simplify the aerodynamic design
(C) Increase the aircraft’s drag
(D) Enhance the visual appeal of the aircraft

5. “CFD simulations” can help in optimizing:
(A) Aerodynamic shapes and performance of aircraft components
(B) The weight of the aircraft
(C) The number of onboard systems
(D) The visual appearance of the cockpit

6. “Solver algorithms” in CFD are used to:
(A) Numerically solve the equations governing fluid flow
(B) Increase the aircraft’s drag
(C) Simplify the manufacturing process
(D) Enhance the visual design of components

7. “Velocity field” in CFD simulations refers to:
(A) The distribution of fluid velocity throughout the computational domain
(B) The weight distribution of the aircraft
(C) The aerodynamic shape of the wings
(D) The visual design of the aircraft

8. “Pressure distribution” analysis in CFD helps to:
(A) Understand how pressure varies across aircraft surfaces
(B) Simplify the design of control surfaces
(C) Increase the aircraft’s weight
(D) Enhance the visual appeal of the components

9. “Mesh refinement” in CFD is performed to:
(A) Improve accuracy in areas with high gradients or complex flow features
(B) Simplify the aerodynamic design
(C) Increase the size of the aircraft’s components
(D) Reduce the number of onboard systems

10. “Validation of CFD models” involves:
(A) Comparing simulation results with experimental data to ensure accuracy
(B) Increasing the complexity of the simulation
(C) Simplifying the control systems
(D) Enhancing the visual appearance of the aircraft