The value of viscosity of crude oil is to be determined above which it will show laminar flow. Concept introduction: Viscosity is the resistance to the motion of fluid which doesn’t allow it to move in a given direction. The flow of a fluid is said to be Laminar when it is moving at a low speed with a streamline motion. The laminar flow can be shown by the Reynold’s number of a fluid. Re = ρvD μ ……. (1) In the given formulae, the notations used are, Re is the Reynold's Number ρ = Density of fluid v = Average Velocity of fluid D = Diameter of pipeline in which fluid is moving μ = Viscosity of fluid For laminar flow critical value of Reynold’s number is 2100.

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Chapter 3, Problem 3.9P

Interpretation Introduction

Interpretation: The value of viscosity of crude oil is to be determined above which it will show laminar flow.

Concept introduction: Viscosity is the resistance to the motion of fluid which doesn’t allow it to move in a given direction.

The flow of a fluid is said to be Laminar when it is moving at a low speed with a streamline motion. The laminar flow can be shown by the Reynold’s number of a fluid.

Re = ρvDμ ……. (1)

In the given formulae, the notations used are,

Re is the Reynold's Numberρ = Density of fluidv = Average Velocity of fluidD = Diameter of pipeline in which fluid is movingμ = Viscosity of fluid

For laminar flow critical value of Reynold’s number is 2100.

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