Civil Engineering - Hydraulics - Discussion
Discussion Forum : Hydraulics - Section 1 (Q.No. 17)
17.
The shear stress distribution in viscous fluid through a circular pipe is :
Discussion:
48 comments Page 1 of 5.
Yatheesh Kumar said:
11 months ago
The answer is Maximum at the pipe surface because the pipe surface will the zone of 'no slip area' where the nearest layer of the liquid is expiring the highest shear force and it moves very slowly as compared to the mean layer of water so that the maximum shear force will more near to pipe surface.
(1)
Sandeep maurya said:
8 years ago
In a pipe flow friction developed, Which cause velocity not constant throughout the section, so that shear stress never constant through the section. Shear stress proportional to the distance from center of the pipe. As radius 0 shear stress 0, and are maximum, shear stress will be maximum.
MAAZ KHAN said:
9 months ago
The correct answer is 'maximum at the inside of the surface'.
In a viscous fluid flowing through a circular pipe, the shear stress is zero at the centre of the pipe and increases linearly with radial distance, reaching its maximum value at the pipe wall (the inside surface of the pipe).
In a viscous fluid flowing through a circular pipe, the shear stress is zero at the centre of the pipe and increases linearly with radial distance, reaching its maximum value at the pipe wall (the inside surface of the pipe).
Ejaz Ahmad said:
10 years ago
In circular pipe Shear stress is minimum at center and maximum at face inside the pipe because it varies with are i.e radius keeping dp/dx is constant but in case of velocity i.e velocity is maximum at center and minimum at face inside the pipe.
Hence answer should be B.
Hence answer should be B.
PRADEEP said:
6 years ago
1. Velocity distribution is parabolic. That is maximum at the centre.
2. The shear stress distribution is zero at the centre and gradually increased though it the inner surface.
Here, "B" is the correct answer.
2. The shear stress distribution is zero at the centre and gradually increased though it the inner surface.
Here, "B" is the correct answer.
BALOCH said:
4 years ago
I think the given answer is correct because it is being asked regarding Shear stress distribution in VISCOUS FLUID.
So, for VISCOUS FLUID shear stress distribution will be the same throughout the section.
So, for VISCOUS FLUID shear stress distribution will be the same throughout the section.
(1)
BALOCH said:
4 years ago
I think the given answer is correct because it is being asked regarding Shear stress distribution in VISCOUS FLUID.
So, for VISCOUS FLUID shear stress distribution will be the same throughout the section.
So, for VISCOUS FLUID shear stress distribution will be the same throughout the section.
(1)
Pavankalyan said:
8 years ago
As it is a viscous liquid it offers some resistance. So, shear stress will be min. At centre and max. At surface of the pipe. So, the answer should be B. If it is non-viscous fluid then answer is correct.
Pkota said:
4 years ago
In the case of inviscous flow i.e. ideal flow shear stress distribution is of rectangular shape so answer c is correct.
In case of real flow steady and laminar then option B will be correct.
In case of real flow steady and laminar then option B will be correct.
(1)
Suraj said:
7 years ago
Shear stress across a section varies with r. Hence dp/dx across a section is constant. Hence shear across a section is linear. Hence shear stress is maxed at inside surface of the pipe.
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