WorksheetsBMKU 4633 QUIZ CHAPTER 1
Total questions: 10
Worksheet time: 7mins
What is the disadvantage in predicting a complex problem with a very limited objective in CFD?
Time-consuming
Impossible to solve
Slower
Expensive
What is the advantage of numerical methods over analytical method?
Speed
Cost
Flexibility
Time
Why ideal conditions should be simulated in CFD?
Experimental analysis is impossible for ideal conditions
Experimental set-up will have imperfections
Experimental set-up will lead to wrong solutions
Experimental analysis can be done for ideal cases
A teacher wants to show the effects of turbulence over an aircraft to the students. What is the best way to simulate it?
Wind tunnel with analytical backup
Wind tunnel with CFD backup
Flow visualization in wind tunnel
Turbulence modelling and animation using CFD tools
For optimization of designs, CFD is ___________
Slow and expensive
Cost-effective but slow
Fast but expensive
Cost-effective and fast
CFD is the third approach for fluid flow analysis. What are the other two approaches?
Theoretical and experimental
Physical and Mathematical
Numerical and experimental
Experimental and physical
Which among the following is a reason why we do not completely rely upon ground tests for analysing fluid dynamics?
Three-dimensional flows cannot be analysed
Facilities do not exist in all fight regimes
The output generated is not as accurate as theoretical analysis
Long run-time
Which of the following is not true about CFD?
There will be a need for theory and experiments
CFD is an equal partner of theoretical and experimental analyses
CFD will complement theoretical and experimental Fluid Dynamics
CFD will replace the approaches of pure theory and pure experiments
CFD analyses Fluid Dynamics using this method.
Analytical
Physical
Numerical
Experimental
CFD provides results of ____________
Continuous time varying results at discrete locations
Discrete points of space and time
Continuous spatial results at discrete time points
Continuous in time and space
