Calculator
Fluid Flow
Pump Hydraulic and Shaft Power Calculator
Calculate hydraulic power, mechanical pump shaft power, and pump losses from actual flow, total pump head, fluid density, gravity, and pump efficiency.
P = ρgQH / η
ENGINEERING TOPIC
Fluid Flow
Pipe velocity, Reynolds number, fluid head, and pressure drop calculations.
08 RESOURCES
Resources
Calculator
Fluid Flow
Pressure–Head Converter
Convert pressure difference and equivalent fluid head in either direction with explicit density and gravity, SI and engineering units, and worked steps.
h = ΔP / ρg
Calculator
Fluid Flow
Pipe Velocity Calculator
Calculate mean pipe velocity from actual volumetric flow and internal diameter, with SI and engineering units, flow area, worked steps, and an example.
v = 4Q / πD²
Calculator
Fluid Flow
Reynolds Number Calculator
Calculate Reynolds number with dynamic or kinematic viscosity, SI and engineering units, explicit diameter basis, and circular-pipe flow-regime guidance.
Re = ρ v D / μ
Guide
Fluid Flow
Pumps and Piping: Hydraulic Power, Head, and System Curves
A pump offers hydraulic energy to a liquid along a pump curve, while the piping system demands energy along a system curve made…
Guide
Fluid Flow
Reynolds Number Explained for Internal Pipe Flow
The Reynolds number (Re) compares inertial to viscous forces in a flowing fluid and predicts whether pipe flow will be laminar or turbulent:…
Guide
Fluid Flow
Hydraulic Power vs Shaft Power: A Pump Calculation Example
Hydraulic power is the useful energy a pump transfers to the fluid per second—flow rate times pressure rise—while shaft power is the mechanical…
Guide
Fluid Flow
Mass Flow vs Volumetric Flow: Why Density Conditions Matter
Mass flow rate measures the mass of fluid passing per unit time and is independent of temperature and pressure; volumetric flow rate measures…