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Dimensionless Numbers and Their Importance in Fluid Mechanics

In fluid mechanics, Dimensionless numbers or non-dimensional numbers are those which are useful to determine the flow characteristics of a…

DIMENSIONAL HOMOGENEITY

Dimensional Homogeneity ·         Any equation is only true if both sides have the same dimensions. ·         It must be dimensionally homogenous. What…

Dimensions and Units in Fluid Mechanics

A dimension is a measure of a physical variable. In fluid mechanics, there are four primary dimensions: mass, length, time, and temperature. Primary…

Boundary Layer Thickness

We define the thickness of the boundary layer as the distance from the wall to the point where the velocity is 99%…

BOUNDARY LAYER

A boundary layer is a thin layer of viscous fluid close to the solid surface of a wall in contact…

The Hydraulic Gradient

In the pages on the flow of a fluid through pipes, it is seen that there is a loss of…

Minor losses

Pipes – in Series or Parallel

Pressure loss in pipes connected in series or parallel Pipes in Series For pipes connected in series the pressure loss…

Moody Diagram

The Moody diagram (also known as the Moody chart) is a graph in non-dimensional form that relates the Darcy friction factor, Reynolds number,…

Darcy Friction Factor

The Darcy Equation is a theoretical equation that predicts the frictional energy loss in a pipe based on the velocity…

DARCY’S EQUATION FOR LOSS OF HEAD DUE TO FRICTION IN PIPE

A pipe is a closed conduit through which the fluid flows under pressure.When the fluid flows through the piping system,some…

FLOW THROUGH CIRCULAR CONDUITS

PRE REQUEST DISCUSSION This page has an in dept dealing of laminar flow through pipes, boundary layer concept, hydraulic and…