Fluid Mechanics

Fluid mechanics calculators in course order: Reynolds number, Bernoulli, Darcy-Weisbach friction, pipe flow, venturi meters, boundary layers and pump power.

1. 1

   Reynolds Number

   Calculate the Reynolds number and determine flow regime (laminar, transitional, turbulent) for pipe flow. Includes Darcy friction factor. Fr…
2. 2

   Bernoulli & Continuity Solver

   Solves the Bernoulli equation and continuity equation for pipe flow with changing cross-section. Given inlet velocity, both diameters, and i…
3. 3

   Darcy-Weisbach Pressure Drop

   Calculate pipe friction pressure drop and head loss using the Darcy-Weisbach equation. Returns ΔP in kPa and head loss in metres. Free chemi…
4. 4

   Hazen-Williams Pipe Flow

   Calculate pipe flow velocity and flow rate using the Hazen-Williams equation. Instant hydraulic results with velocity checks. Free civil eng…
5. 5

   Venturi / Orifice Flow Meter

   Calculate volumetric flow rate, throat velocity, Reynolds number and permanent pressure loss for Venturi tubes, orifice plates and flow nozz…
6. 6

   Boundary Layer Growth· Simulation

   Flat-plate boundary layer thickness δ, displacement thickness δ* and momentum thickness θ using Blasius (laminar) and 1/7 power-law (turbule…
7. 7

   Pump Power

   Calculate centrifugal pump hydraulic power, shaft power and efficiency. Returns kW, horsepower and energy per m³. Free chemical engineering …
8. 8

   NPSH & Cavitation Check

   Calculate net positive suction head available (NPSHa) and check for cavitation risk in centrifugal pumps. Returns NPSHa, safety factor, maxi…