Chemical Engineering - Chemical Engineering Basics - Discussion
Discussion Forum : Chemical Engineering Basics - Section 1 (Q.No. 4)
4.
Friction factor for fluid flow in pipe does not depend upon the
Discussion:
39 comments Page 2 of 4.
Prem said:
10 years ago
They asked f for the pipe.
f equals 16/re.
for a pipe Reynolds no. diameter is considered.
re for a flat plate length is considered.
So for a pipe, since diameter is considered to calculate Reynolds no.
Pipe length is not required.
Friction factor is independent of pipe length.
f equals 16/re.
for a pipe Reynolds no. diameter is considered.
re for a flat plate length is considered.
So for a pipe, since diameter is considered to calculate Reynolds no.
Pipe length is not required.
Friction factor is independent of pipe length.
Sushil said:
9 years ago
@ALL.
Here the length given may refers to the (entrance length) afterwards the flow becames fully developed and hence friction factor start existing.
Here the length given may refers to the (entrance length) afterwards the flow becames fully developed and hence friction factor start existing.
Laxman said:
9 years ago
Pipe roughness; fluid density & viscosity and mass flow rate of fluid if these parameters u alter, frictional losses of particular will change. Isn't it? What is going to do by increasing or decreasing length.
Ivana said:
8 years ago
@Laxman.
When the length increases friction losses increase. But f is independent of length.
When the length increases friction losses increase. But f is independent of length.
Ritik gupta said:
8 years ago
It does not depend upon length but its depend upon flow rate because if the flow rate is high then friction is less.
So, A is the right answer.
So, A is the right answer.
Ajama said:
8 years ago
Thanks all for explaining.
Nain said:
1 decade ago
@Muhammad.
Very well done, Thanks.
Very well done, Thanks.
N.d.madhani said:
7 years ago
Friction factor does not depends on pipe length.
Sourabh said:
6 years ago
Yes, it should depend on length.
Gobi said:
6 years ago
Yes, friction factor does not depend on the pipe length.
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