• Support PF! Buy your school textbooks, materials and every day products Here!

Calculating pressure gradient

  • Thread starter corinnab
  • Start date
9
0
a very dilute orange juice flows along a smooth tube (0.010m in diameter) with a maximum flow rate of 0.1m/s.
a) State the assumptions needed to solve the problem
b) Calculate the pressure gradient

Equations:
Vmax = (Change in P * R^2)/(4*viscosity*L)

Reynolds number = (density*D*v)/viscosity

I am a bit confused about how to solve this as I havn't done any engineering before. This is what I have come up with so far:

a) Assume laminar flow - Reynolds number = 2100
Assume newtonian fluid
Assume density of dilute orange juice is same as for water.

b) Use Reynolds number to solve for viscosity. Then solve for change in pressure/L using Vmax equation.

Any help would be appreciated!
 

Answers and Replies

Related Threads for: Calculating pressure gradient

Replies
0
Views
3K
Replies
0
Views
2K
Replies
4
Views
666
  • Last Post
Replies
0
Views
1K
  • Last Post
Replies
1
Views
1K
Replies
2
Views
2K
  • Last Post
Replies
4
Views
1K
Replies
1
Views
827
Top