Fluids & Thermal Tools

Flow, pressure and heat are the three things a fluid system is judged on, and the arithmetic behind them is short enough to do by hand and easy enough to fumble in the unit conversion. Flow Rate Calculator starts the section from the measurement people actually take: time a known volume into a bucket, or take a pipe bore and a velocity off a drawing, and it reports the same flow in litres per second and minute, cubic metres per hour, US and UK gallons per minute, CFM and gallons per day — then adds the velocity in the line and the mass flow for eight named fluids.

Pressure drop, Bernoulli, pump efficiency, Reynolds number, heat transfer and thermal expansion are next, along with the machining speeds and feeds that share the same units.