phaxor 1.0.2

Engineering Calculator Library — Ideal Gas, Ohm's Law, Mohr's Circle, Beam Analysis, and more with rich Jupyter output

🔬 Phaxor — Engineering Calculator Library

Embeddable engineering calculations for JavaScript and Python.

Install

pip install phaxor

Quick Start

import phaxor

# Ideal Gas Law
result = phaxor.compute('ideal-gas', {
    'solveFor': 'pressure',
    'volume': 0.02241,
    'moles': 1,
    'temperature': 273.15,
    'gas': 'air'
})
print(f"Pressure = {result['P']:.0f} Pa")  # 101325 Pa

# Ohm's Law
result = phaxor.compute('ohms-law', {
    'solveFor': 'I',
    'voltage': 12,
    'resistance': 100
})
print(f"Current = {result['I']} A")  # 0.12 A

# Unit Conversion
km = phaxor.convert('length', 1, 'mi', 'km')
print(f"1 mile = {km:.6f} km")  # 1.609344 km

# Mohr's Circle
result = phaxor.compute('mohrs-circle', {
    'sigmaX': 80,
    'sigmaY': -40,
    'tauXY': 30,
    'theta': 25
})
print(f"σ₁ = {result['sigma1']:.1f} MPa")

# List all calculators
for calc in phaxor.list_calculators():
    print(f"  {calc['id']:20s} {calc['name']}")

Available Calculators (All 74 Engines)

ID	Name	Category
arrhenius	Arrhenius	Chemical
cstr	CSTR Design	Chemical
chem-equilibrium	Chem Equilibrium	Chemical
distillation	Distillation	Chemical
gibbs	Gibbs	Chemical
pfr	PFR Design	Chemical
packed-bed	Packed Bed	Chemical
stoichiometry	Stoichiometry	Chemical
vle	VLE / Phase Equilibrium	Chemical
battery-ups	Battery Ups	Electrical
cable-sizing	Cable Sizing	Electrical
circuit-breaker	Circuit Breaker	Electrical
dc-motor	DC Motor	Electrical
earthing	Earthing	Electrical
electrical-efficiency	Electrical Efficiency	Electrical
energy-consumption	Energy Consumption	Electrical
impedance	Impedance	Electrical
induction-motor	Induction Motor	Electrical
ohms-law	Ohm's Law	Electrical
power	Power	Electrical
pf-correction	Power Factor Correction	Electrical
rectifier	Rectifier	Electrical
resonance	Resonance	Electrical
short-circuit	Short Circuit	Electrical
solar-sizing	Solar Sizing	Electrical
transformer	Transformer	Electrical
geometry	Geometry	General
matrix	Matrix	General
unit-converter	Unit Converter	General
open-channel	Open Channel Flow	Hydraulics
pavement-thickness	Pavement Thickness	Hydraulics
sight-distance	Sight Distance	Hydraulics
weir-orifice	Weir & Orifice	Hydraulics
apf	Atomic Packing Factor	Materials
corrosion	Corrosion	Materials
fatigue-life	Fatigue Life	Materials
hardness-conversion	Hardness Conversion	Materials
rule-of-mixtures	Rule of Mixtures	Materials
beam	Beam	Mechanical
bearing-life	Bearing Life	Mechanical
belt-drive	Belt Drive	Mechanical
bolt-analysis	Bolt Analysis	Mechanical
cop	Coefficient of Performance	Mechanical
flywheel	Flywheel	Mechanical
gear-ratio	Gear Ratio	Mechanical
heat-exchanger	Heat Exchanger	Mechanical
heat-transfer	Heat Transfer	Mechanical
ideal-gas	Ideal Gas Law	Mechanical
pipe-flow	Pipe Flow	Mechanical
pressure-force	Pressure Force	Mechanical
pump-power	Pump Power	Mechanical
rankine-cycle	Rankine Cycle	Mechanical
shaft-design	Shaft Design	Mechanical
spring-design	Spring Design	Mechanical
torque-power	Torque Power	Mechanical
vibration	Vibration	Mechanical
weld-strength	Weld Strength	Mechanical
beam-deflection	Beam Deflection	Structural
bearing-capacity	Bearing Capacity	Structural
column-buckling	Column Buckling	Structural
concrete-volume	Concrete Volume	Structural
development-length	Development Length	Structural
earth-pressure	Earth Pressure	Structural
failure-theory	Failure Theory	Structural
isolated-footing	Isolated Footing	Structural
mohrs-circle	Mohr's Circle	Structural
rcc-beam	RCC Beam Design	Structural
rcc-column	RCC Column Design	Structural
rcc-slab	RCC Slab Design	Structural
reinforcement-qty	Reinforcement Qty	Structural
settlement	Settlement	Structural
soil-properties	Soil Properties	Structural
steel-weight	Steel Weight	Structural
stress-strain	Stress Strain	Structural

Pipe Flow (Detailed Model)

import phaxor

# Pressure-driven solve using NPS + Schedule diameter lookup
result = phaxor.compute('pipe-flow', {
    'solveMode': 'known-pressures',
    'nps': '4',
    'schedule': '40',
    'length': 120,
    'roughness': 0.000045,
    'minorLossK': 6.5,
    'elevationChange': 5,
    'inletPressure': 220,   # kPa gauge
    'outletPressure': 0,    # kPa gauge
    'density': 998,
    'viscosity': 0.001002
})

print(f"Q = {result['flowRate']*3600:.2f} m3/h")
print(f"ID source = {result['diameterSource']}")
print(f"Delta P = {result['pressureDeltaKPa']:.2f} kPa")

The pipe-flow engine now supports:

• known-flow and known-pressures boundary modes
• Flow input by volumetric flow, mass flow, or velocity
• Minor loss (K) and elevation/pump head terms
• Pipe sizing by direct diameter or nps + schedule
• Extended outputs (major/minor loss split, power estimates, turbulence initialization fields)

Jupyter Notebooks

In Jupyter, calling phaxor.compute() automatically renders a styled HTML table:

import phaxor

# This renders a beautiful HTML table in Jupyter!
phaxor.compute('ideal-gas', {
    'solveFor': 'pressure',
    'volume': 0.02241,
    'moles': 1,
    'temperature': 273.15,
})

API

phaxor.compute(calculator_type, inputs)  # Run any calculator
phaxor.convert(category, value, from_unit, to_unit)  # Unit conversion
phaxor.list_calculators()  # List all available calculators

License

MIT