How does pipe thickness affect head loss at entrance?

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Homework Help Overview

The discussion revolves around the relationship between pipe thickness and head loss at the entrance of a pipe. Participants are exploring how the thickness of pipe walls influences the degree of contraction and the associated loss coefficients in fluid dynamics.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants are questioning the meaning of how pipe thickness affects head loss, particularly in relation to the velocity of water and the loss coefficients. There is a focus on understanding the implications of the degree of contraction and how it relates to pipe dimensions.

Discussion Status

The discussion is ongoing, with participants seeking clarification on specific terms and concepts. There are requests for exact quotes and diagrams to aid understanding, indicating a collaborative effort to unpack the topic further.

Contextual Notes

Some participants express confusion regarding the definitions and implications of the concepts discussed, particularly the relationship between pipe thickness and head loss. There are references to external resources and illustrations that have been shared, but the discussion remains exploratory.

foo9008
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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]
 
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foo9008 said:

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?
 
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Chestermiller said:
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
 
foo9008 said:
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?
 
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Chestermiller said:
Can you provide a diagram?
 

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Edit : Inlet profiles illustration removed .
 
Last edited:
Nidum said:
https://www.physicsforums.com/attachments/100868
What are you trying to say?
 
Chestermiller said:
Can you provide a diagram?
do you have any idea now ?
 

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