Class FluidFlow

java.lang.Object

org.episteme.natural.engineering.fluids.FluidFlow

public class FluidFlow
extends Object

Fluid flow calculations. Modernized to use high-precision Real and typed Quantities.

Since:

1.0

Author:

Silvere Martin-Michiellot, Gemini AI (Google DeepMind)

Method Summary

Modifier and Type	Method	Description
static Quantity<Pressure>	bernoulliPressure(Quantity<Pressure> p1, Quantity<Velocity> v1, Quantity<Length> h1, Quantity<Velocity> v2, Quantity<Length> h2, Real density)	Bernoulli's equation for incompressible flow.
static FlowRegime	flowRegime(Real reynoldsNumber)	Flow regime based on Reynolds number.
static Real	laminarFrictionFactor(Real reynoldsNumber)	Darcy friction factor for laminar flow. f = 64 / Re
static Real	laminarPipeFlow(Real pressureDrop, Real radius, Real dynamicViscosity, Real length)	Hagen-Poiseuille equation for laminar flow in a pipe.
static Real	reynoldsNumber(Real velocity, Real characteristicLength, Real kinematicViscosity)	Reynolds number: Re = v * L / ν Dimensionless quantity.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

reynoldsNumber

public static Real reynoldsNumber(Real velocity,
 Real characteristicLength,
 Real kinematicViscosity)

Reynolds number: Re = v * L / ν Dimensionless quantity.

flowRegime

public static FlowRegime flowRegime(Real reynoldsNumber)

Flow regime based on Reynolds number. Returns LAMINAR, TRANSITIONAL, or TURBULENT.

bernoulliPressure

public static Quantity<Pressure> bernoulliPressure(Quantity<Pressure> p1,
 Quantity<Velocity> v1,
 Quantity<Length> h1,
 Quantity<Velocity> v2,
 Quantity<Length> h2,
 Real density)

Bernoulli's equation for incompressible flow. Calculates pressure at point 2 given conditions at point 1 and flow parameters. P2 = P1 + 0.5*ρ*(v1² - v2²) + ρ*g*(h1 - h2)

laminarPipeFlow

public static Real laminarPipeFlow(Real pressureDrop,
 Real radius,
 Real dynamicViscosity,
 Real length)

Hagen-Poiseuille equation for laminar flow in a pipe. Q = π * ΔP * r⁴ / (8 * μ * L) All inputs as Reals in consistent base units (e.g. SI).

laminarFrictionFactor

public static Real laminarFrictionFactor(Real reynoldsNumber)

Darcy friction factor for laminar flow. f = 64 / Re