Computational Fluid Dynamics MCQ

Q1. Computational Fluid Dynamics is primarily used to:

Q2. Which basic law forms the foundation of CFD?

Q3. In CFD, discretization means:

Q4. What does a mesh in CFD represent?

Q5. Which method is NOT standard for discretization in CFD?

Q6. CFD can solve which type of problem?

Q7. To model turbulence in CFD, which model is often used?

Q8. What does “boundary condition” specify in a CFD simulation?

Q9. Conservation of mass in CFD is enforced using:

Q10. Which variable is NOT a primary variable in fluid simulation?

Q11. The CFL condition in CFD ensures:

Q12. Which process converts a partial differential equation to algebraic equations?

Q13. A solution that does not change with time is called:

Q14. "Mesh independence" means:

Q15. Which technique reduces calculation error by using smaller time steps?

Q16. Main advantage of Finite Volume Method in CFD is:

Q17. The "iteration" process in CFD refers to:

Q18. Staggered grid avoids pressure-velocity coupling problems in:

Q19. Wall function in CFD is used for:

Q20. Which error reduces with mesh refinement?

Q21. Which flow assumption is made in incompressible CFD?

Q22. What is the main goal of turbulence modeling in CFD?

Q23. A very fine mesh leads to:

Q24. Reynolds Number shows ratio of:

Q25. For high-speed compressible flows, which equation is crucial?

Q26. In CFD, “residual” indicates:

Q27. Implicit solvers in CFD are:

Q28. Solver convergence criterion is usually based on:

Q29. CFD software can provide:

Q30. The SIMPLE algorithm in CFD stands for:

Q31. Grid cell aspect ratio mainly affects:

Q32. Post-processing in CFD includes:

Q33. A “coarse mesh” can lead to:

Q34. “Ghost cells” are used in CFD for:

Q35. Heat transfer by convection in CFD is modeled via:

Q36. The Pressure Correction equation helps:

Q37. CFD validation ensures:

Q38. What is “VOF method” in CFD commonly used for?

Q39. The result of a converged steady CFD simulation should:

Q40. Which of the following is NOT a CFD application?