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If the Reynolds number of the flow of a liquid in a pipe is more than 2800, then the flow is called as
  • a)
    Turbulent flow
  • b)
    Neither Laminar nor Turbulent
  • c)
    Streamlined flow
  • d)
    Laminar flow
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
If the Reynolds number of the flow of a liquid in a pipe is more than ...
Reynolds Number:
  • It is the ratio of the inertial forces to viscous forces.
  • It is a dimensionless number used to categorize the fluid systems in the effect of viscosity is important in controlling the velocities or the flow pattern of a fluid.
Mathematically, Reynolds Number is
Where,  ρ = density, V = velocity, d = diameter, μ = viscosity
Flow-through pipes are classified into three main categories:
  • If Reynold's number is very low (less than 2000) then flow is called Laminar flow. 
  • If Reynold's number is in the range of 2000 to 4000 then flow is called transition flow.
  • If Reynold's number is very high (greater than 4000) then flow is called Turbulent flow.
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Most Upvoted Answer
If the Reynolds number of the flow of a liquid in a pipe is more than ...
Explanation:

Reynolds Number:
- The Reynolds number (Re) is a dimensionless quantity used to predict flow patterns in different fluid flow situations.
- It is defined as the ratio of inertial forces to viscous forces within a fluid flow.

Interpretation of Reynolds Number:
- When the Reynolds number is less than 2000, the flow is considered laminar.
- When the Reynolds number is between 2000 and 4000, the flow is considered to be in a transitional zone.
- When the Reynolds number exceeds 4000, the flow is considered turbulent.

Relevance to the Question:
- In the given question, if the Reynolds number of the flow of a liquid in a pipe is more than 2800, it falls in the transitional zone.
- This means that the flow is neither purely laminar nor fully turbulent.
- It is a critical range where the flow characteristics can exhibit aspects of both laminar and turbulent flow.

Conclusion:
- Option B, "Neither Laminar nor Turbulent," is the correct answer because a Reynolds number greater than 2800 falls in the transitional zone, showing characteristics of both laminar and turbulent flow.
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If the Reynolds number of the flow of a liquid in a pipe is more than 2800, then the flow is called asa)Turbulent flowb)Neither Laminar nor Turbulentc)Streamlined flowd)Laminar flowCorrect answer is option 'B'. Can you explain this answer?
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