Dimensionless Number | Irrigation Engineering - Civil Engineering (CE) PDF Download

Introduction

Dimensionless parameters or numbers are obtained by dividing the inertia force by a force like viscous or gravity force.
Important dimensionless numbers are:

  • Reynold’s number
  • Froude’s number
  • Euler’s number
  • Weber’s number
  • Mach’s number

1. Reynolds number (Re): It is the ratio of inertia force to viscous force.
Dimensionless Number | Irrigation Engineering - Civil Engineering (CE)

2. Froude’s number (Fr): It is the square root of the ratio of the inertia force and gravity force.
Dimensionless Number | Irrigation Engineering - Civil Engineering (CE)
Dimensionless Number | Irrigation Engineering - Civil Engineering (CE)

3. Euler’s number (Eu): It is the square root of the ratio of inertia force to pressure force.
Dimensionless Number | Irrigation Engineering - Civil Engineering (CE)

4. Weber’s number (We): It is the square root of ratio of inertia force to surface tension force.
Dimensionless Number | Irrigation Engineering - Civil Engineering (CE)
Dimensionless Number | Irrigation Engineering - Civil Engineering (CE)

5. Mach’s number (M): It is the square root of the ratio of inertia force to the elastic force
Dimensionless Number | Irrigation Engineering - Civil Engineering (CE)
Dimensionless Number | Irrigation Engineering - Civil Engineering (CE)
Where, C = Velocity of sound in the fluid.

The document Dimensionless Number | Irrigation Engineering - Civil Engineering (CE) is a part of the Civil Engineering (CE) Course Irrigation Engineering.
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