Head loss due to contraction

  • Thread starter foo9008
  • Start date
  • #1
678
4

Homework Statement


I was told that for loss of head at entrance , the degree of contaction depends on how thick the pipe walls is .
i really don't know the meaning , can someone clarify ? the author also stated that the loss coefficients will vary , for very thin tubes , k is very high ?
head loss = k (V^2) / 2g

Homework Equations




The Attempt at a Solution


as we can see , the haed loss is affected by velocity of water , how can thickness of pipe affect the head loss? [/B]
 

Answers and Replies

  • #2
21,982
5,011

Homework Statement


I was told that for loss of head at entrance , the degree of contaction depends on how thick the pipe walls is .
i really don't know the meaning , can someone clarify ? the author also stated that the loss coefficients will vary , for very thin tubes , k is very high ?
head loss = k (V^2) / 2g

Homework Equations




The Attempt at a Solution


as we can see , the haed loss is affected by velocity of water , how can thickness of pipe affect the head loss? [/B]
Can you provide an exact quote?
 
  • #3
678
4
Can you provide an exact quote?
The degree of contraction depends upon how far the flow the pipe may project within the reservior and also how thick the pipe walls are , compared with its diameter
 
  • #4
21,982
5,011
The degree of contraction depends upon how far the flow the pipe may project within the reservior and also how thick the pipe walls are , compared with its diameter
Can you provide a diagram?
 
  • #5
678
4

Attachments

  • DSC_0041.JPG
    DSC_0041.JPG
    35 KB · Views: 331
  • #6
Nidum
Science Advisor
Gold Member
2,990
850
Edit : Inlet profiles illustration removed .
 
Last edited:
  • #8
678
4

Related Threads on Head loss due to contraction

  • Last Post
Replies
3
Views
686
Replies
3
Views
1K
Replies
2
Views
796
  • Last Post
Replies
18
Views
2K
  • Last Post
Replies
1
Views
639
  • Last Post
Replies
33
Views
2K
  • Last Post
Replies
13
Views
2K
  • Last Post
Replies
0
Views
5K
  • Last Post
Replies
12
Views
1K
  • Last Post
Replies
3
Views
19K
Top