Chemical Engineering - Heat Transfer - Discussion
Discussion Forum : Heat Transfer - Section 2 (Q.No. 26)
26.
For flow over a flat plate, the ratio of thermal boundary layer thickness, 'xt' and hydrodynamic boundary layer thickness 'x' is equal to (where, NPr = Prandtl number)
Discussion:
13 comments Page 1 of 2.
KOSISOCHUKWU said:
9 years ago
The answer is C.
The Prandtl number is defined as the ratio of hydrodynamic boundary layer thickness to thermal boundary layer thickness. It is therefore clearly seen that this is the inverse of the problem statement.
The Prandtl number is defined as the ratio of hydrodynamic boundary layer thickness to thermal boundary layer thickness. It is therefore clearly seen that this is the inverse of the problem statement.
(1)
Ashish said:
7 years ago
I am totally agree @Dipankar.
(1)
Miswahul haq said:
11 months ago
By comparing the equations for the thermal and hydrodynamic boundary layers, it can be shown that the ratio of 'xt' to 'x' is equal to the inverse of the Prandtl number raised to the power of one-third: xt/x = NPr^ (-1/3).
Therefore, the correct answer is option 'B', NPr^ (1/3).
Therefore, the correct answer is option 'B', NPr^ (1/3).
(1)
Ash said:
1 decade ago
Answer is D.
xt/x = 1/Npr^1/3.
xt/x = 1/Npr^1/3.
Jonathan said:
9 years ago
The answer should be D.
Turbulence said:
8 years ago
According to me, the answer is D.
Dipankar Kakati said:
7 years ago
(Hydrodynamic Boundary Thickness)/(Thermal Boundary Thickness) = Pr^(1/3).
So, Answer is D.
So, Answer is D.
Yadav said:
7 years ago
I think [D] is the correct option.
Heera singh said:
7 years ago
The answer is D.
Utkarsh said:
7 years ago
Yes, the correct answer would be D.
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