Computational Fluid Dynamics Turbulent Boundary Layer Online Exam Quiz
Computational Fluid Dynamics Turbulent Boundary Layer GK Quiz. Question and Answers related to Computational Fluid Dynamics Turbulent Boundary Layer. MCQ (Multiple Choice Questions with answers about Computational Fluid Dynamics Turbulent Boundary Layer
What is the range of y+ in the viscous sub-layer?
Options
A : 0<y+<20
B : 0<y+<5
C : 0<y+<10
D : 0<y+<15
What is the range of y+ in the log-law layer?
Options
A : 30<y+<500
B : 20<y+<500
C : 30<y+<400
D : 20<y+<400
For flows over a flat plate, at length scales near to the length of the flat plate, which of these is correct?
Options
A : Inertial force is zero
B : Inertial force is large
C : Inertial force is equal to viscous force
D : Viscous force is large
The fluid layer which is in contact with a smooth wall is called ____________
Options
A : Inviscid layer
B : Linear sub-layer
C : Log-law layer
D : Wake-law layer
What is the other name of the velocity-defect law?
Options
A : Linear law
B : Log law
C : Law of the wall
D : Law of the wake
The velocity at a point far away from the wall is defined by ____________
Options
A : Power law
B : Log-law
C : Velocity-defect law
D : Newton’s law of viscosity
What is u+?
Options
A : The ratio of velocity parallel to the wall to the friction velocity
B : The ratio of the friction velocity to velocity parallel to the wall
C : The ratio of free-stream velocity and friction velocity
D : The ratio of friction velocity and free-stream velocity
Which of these laws define the dimensionless quantities u+ and y+?
Options
A : Velocity-defect law
B : Log-law
C : Newton’s law of viscosity
D : Law of the wall
The layer with viscous and turbulent stresses in equal magnitude is called _____________
Options
A : Viscous sub-layer
B : Log-law layer
C : Buffer layer
D : Velocity-defect layer
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