• Skip to main content
  • Skip to primary sidebar
  • Home
  • Construction Engineering
    • Civil Engineering Construction
    • Plain & Reinforced Concrete-II
    • Civil Engineering Estimation
    • Engineering Materials
    • Structural Engineering
  • Mechanics
    • Mechanics of Solids 1
    • Mechanics of Solids 2
    • Soil Mechanics 1
    • Soil Mechanics 2
  • Survey
    • Surveying and Levelling
    • Surveying and Levelling 2
  • Environmental Engineering
    • Environmental Engineering
    • Environmental psychology
    • Environment planning
    • Environmental Design
  • Water Engineering
    • Fluid Mechanics 1
    • Fluid Mechanics 2
    • Hydraulic Engineering
    • Irrigation Engineering
    • Engineering Hydrology
  • Misc.
    • Pavement and Foundation
    • Engineering Geology
    • Theory of structures
    • Design of Structures
    • Steel Structures
    • Research methodology
    • Transportation Engineering
    • Contact Us

Civil Engineering Terms

Easy and Understandable Terms Related to Civil Engineering

You are here: Home / Fluid Mechanics 1 / Reynolds Number | Laminar Flow and Turbulent Flow with respecet to Reynolds number

Reynolds Number | Laminar Flow and Turbulent Flow with respecet to Reynolds number

March 2, 2011 by admin 2 Comments

Reynolds Number :

It is the ratio between inertial forces and viscous forces.

It is shown by RN.

  • RN=FI/Fv

Where FI is the inertial forces between the layers of the fluid.

and Fv is the Viscous Forces.

  • Units:

As Reynolds number is the ratio, so it has no units.

There are two distinctly different types of fluid flow was demonstrated by Osborne Reynolds in 1883.

  • Laminar Flow:

The type of flow in which Fluid particles move in smooth layers or in lamination is called laminar flow.

If Reynolds number is is less than or equal to 2000 , the Flow will be laminar.

  • Turbulent Flow:

The type of flow in which fluid particles does not move in layers or lamination is called turbulent flow.

If Reynolds number is greater than 2000 then the flow will be turbulent.

  • Significance of Reynolds number :

The significance of Reynolds number  is that we can estimate whether the flow is laminar or turbulent. Laminar flow occurs at low Reynolds number. By the definition RN=FI/Fv , We can see Reynolds number will be low if the viscous forces are dominant. And Flow will be turbulent at high Reynolds number high Reynolds number will be when the internal forces will be high.

Filed Under: Fluid Mechanics 1

Reader Interactions

Comments

  1. jack says

    June 15, 2012 at 2:49 pm

    You mean “inertial” forces, not “internal”.

    Reply
  2. admin says

    June 27, 2012 at 9:10 pm

    Thanks Jack. It is corrected now.

    Reply

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Primary Sidebar

Sponsors

Recent Posts

  • Brick calculator | Brickwork calculation and brick estimation
  • Los Angeles Abrasion test | Test for road aggregates
  • Shuttering removal time of different structural members
  • Weight of steel bars per meter – Weight of steel bars formula
  • How to calculate quantity of mortar and its materials
  • Specifications of First class brickwork
  • Properties of first class bricks

Pages

  • About CivilEngineeringTerms
  • Contact Us
  • Privacy Policy
  • Submit your article or Ask any query

Categories

  • Articles
  • Civil Engg Construction and Graphics
  • Civil Engg Construction and Graphics
  • Civil Engineering Construction
  • Civil Engineering Estimation
  • Civil Engineering Practice
  • Construction management
  • Design of Structures
  • Engineering Geology
  • Engineering Hydrology
  • Engineering Materials
  • Environment planning and practice
  • Environmental Engineering 1
  • Environmental psychology
  • Fluid Mechanics 1
  • Fluid Mechanics 2
  • General Terms related to Civil Engineering
  • Hydraulic Engineering
  • Introduction to Environmental Design
  • Mechanics of Solids 1
  • Mechanics of Solids 2
  • Pavement and Foundation
  • Plain & Reinforced Concrete-II
  • Research methodology
  • Soil Mechanics 1
  • Soil Mechanics 2
  • Steel Structures
  • Structural Engineering
  • Surveying and Levelling
  • Surveying and Levelling 2
  • Theory of structures 1
  • Transportation Engineering
  • Water Resources & Irrigation Engineering

Site Stats

Copyright © 2022 · Magazine Pro on Genesis Framework · WordPress · Log in