from where u will get friction factor 'f' in darcy's formula?

Categories >> Engineering >> Mechanical Engineering
Suggest New Category

Question Posted / guest

7 Answers
15944 Views
IGCAR, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

from where u will get friction factor 'f' in darcy's formula?..

Answer / shams parwez

Hf=(4flv^2/d2g)

Is This Answer Correct ?

15 Yes

5 No

from where u will get friction factor 'f' in darcy's formula?..

Answer / karthik

for laminar flow f= 64/Re
for turbulent flow f is obtained from the moody diagram
using Re and the relative roughness of the pipe.
the relative roughness can be obtained by using the relation
relative roughness = absolute roughness/inside diameter of
the pipe.

Re means Reynolds number

Is This Answer Correct ?

11 Yes

2 No

from where u will get friction factor 'f' in darcy's formula?..

Answer / prince ali

Hf=(f'L V^2)/2gD
Where F' is the friction factor and
f'=4f,
where f= darcy coefficient

Is This Answer Correct ?

10 Yes

1 No

from where u will get friction factor 'f' in darcy's formula?..

Answer / suhel khan

since darcy's formula=4f'lv^2/2gd
here,f' is the coefficient of friction ,and friction factor
(f)=4f'.
value of f' can be obtained by following realtion,
for Re<2000,f'=16/RE
FOR Re VARYING FROM 4000-10^5,f'=0.079/Re^(1/4)
where Re=reynold's number

Is This Answer Correct ?

7 Yes

0 No

from where u will get friction factor 'f' in darcy's formula?..

Answer / gurunath

Hf=(4flv^2/d2g)

Is This Answer Correct ?

5 Yes

4 No

from where u will get friction factor 'f' in darcy's formula?..

Answer / sadha

H=f(L/D)(v^2/2g)

Is This Answer Correct ?

7 Yes

7 No

from where u will get friction factor 'f' in darcy's formula?..

Answer / prasad surendra naik

f gets depend upon the type of bend

Is This Answer Correct ?

3 Yes

6 No

Post New Answer

More Mechanical Engineering Interview Questions

i need previous 5 years solved q&a for rrb chennai section engg(mech) anybody if you know please atleast provide me the link or if u could send me it to my mail id karthick.silence@gmail.com

0 Answers

The boiling point of corbondioxide is?

6 Answers HAL,

What is the diffrent between centrifugal and positive displacement pump

4 Answers

What are steam turbine parts usually come into damage?

0 Answers RRB,

in a centrifugal pump .. when we close the delivery valve partially .. does this increase the pressure before or after the valve .. and why ??

1 Answers

what is more dangerous longitudinal stress or Hoop stress and why?

3 Answers Bhel,

what is the difference between pipe and a tube?

0 Answers

which material use/make in boiler tube?

3 Answers Sidhee Cement,

• What do you know about Petro Star Mount

1 Answers Petro Star Mount,

how to know the direction of a flow in a pipe line in a room without using pressure gauge?

1 Answers ATS,

SUBJECTS: 1 THERMODYNAMICS .2 HYDROLIC MACHINE . 3 POWER PLANT ENGINEERING .4 ENGINEERINGS MATERIALS .5THERMAL ENGINEERING .6 PRODUCATION TECHNOLOGY .

1 Answers BPCL Bharat Petroleum, HPCL, SAA, TN,

what are the parameters are selected while manufacturing a single cylinder block?what are the different kind of test is conducted on it so that it can withstand with all those condition which required to run the engine efficiently.which force is act when piston slide inside the cylinder.

0 Answers

For more Mechanical Engineering Interview Questions Click Here