Hydraulic Engineering - Vol 1 | 19. Laminar and Turbulent Flow (Contd.) by Abraham | Learn Smarter
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Knowledge
19. Laminar and Turbulent Flow (Contd.)

The chapter focuses on shear stresses in turbulent flow, detailing the Boussinesq model which introduces the concept of eddy viscosity. It discusses Reynolds' shear stress theories and Prandtl's mixing length theory, highlighting how shear stress in turbulent flows is significantly influenced by turbulence. Furthermore, it elucidates the relationship between kinematic quantities and flow characteristics in fluid dynamics, particularly in pipes.

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Sections

  • 1

    Hydraulic Engineering

    This section delves into the principles of shear stresses in turbulent flow, exploring concepts such as eddy viscosity, Reynolds shear stress, and the mixing length theory introduced by Prandtl.

    Learning Practice

  • 1.1

    Lecture- 15

    Learning

  • 1.2

    Laminar And Turbulent Flow (Contd.)

    This section discusses the concept of shear stress in turbulent flow and introduces Boussinesq's model, which includes the significance of turbulent viscosity and Reynolds shear stress.

    Learning Practice

  • 1.3

    Shear Stress In Turbulent Flow

    This section discusses shear stress in turbulent flow, emphasizing Boussinesq’s model, Reynolds shear stress, and Prandtl’s mixing length theory.

    Learning Practice

  • 1.4

    Boussinesq’s Model

    Boussinesq’s model describes the shear stress in turbulent flow, highlighting the concept of eddy viscosity and its significance in hydraulic engineering.

    Learning Practice

  • 1.5

    Eddy Viscosity

    Eddy viscosity is a concept in fluid dynamics, particularly relevant to turbulent flow, where it serves as an additional component of shear stress.

    Learning Practice

  • 1.6

    Reynolds Shear Stress

    This section explores the concept of Reynolds shear stress in turbulent flow and its relationship with the flow's eddy viscosity and mixing length.

    Learning Practice

  • 1.7

    Prandtl's Mixing Length Theory

    Prandtl’s Mixing Length Theory provides a framework for understanding shear stress in turbulent flows by relating fluctuating velocities to a defined mixing length.

    Learning Practice

  • 1.8

    Mixing Length (Lm)

    This section explains the concept of mixing length in fluid dynamics, particularly how it relates to shear stress in turbulent flow.

    Learning Practice

  • 1.9

    Turbulent Flow In Pipes

    This section discusses the additional shear stresses in turbulent flow compared to laminar flow and introduces the concepts of Boussinesq's model and Prandtl's mixing length theory.

    Learning Practice

References

15a.pdf

Class Notes

Memorization

What we have learnt

  • Shear stress in turbulent f...
  • Eddy viscosity and kinemati...
  • Reynolds shear stress invol...

Final Test

Revision Tests