In the laminar boundary layer flow over a flat plate, the ratio (δ/x) varies as: (where, 'δ' is the boundary layer thickness and 'x' is the distance from the leading edge in the direction of flow)?
Correct answer: D. Re-1/2
- A. Re
- B. √Re
- C. 1/Re
- D. Re-1/2
Explanation
For a laminar flat-plate boundary layer, δ is proportional to √x, so δ/x is proportional to 1/√x or Re_x^-1/2. Hence the ratio decreases as Reynolds number increases.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Fluid Flow Operations
909 free Fluid Flow Operations MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Fluid Flow Operations questions
In case of isentropic flow, the speed of sound in an ideal gas is proportional to (where M = molecular weight of the gas) ?
The bulk modulus of elasticity of a liquid__________________?
The most suitable flow measuring device for the fluid flow measurement in a very large diameter pipeline is a____________________?
An ideal nozzle design aims at________________?
One horsepower is equal to________________?
In case of isentropic flow, the speed of sound in an ideal gas is proportional to (where, T = absolute temperature) ?