Reproducibility is a feature
Testing & validation
Check the engineering foundation against analytical equations; run actual ngspice cases separately from browser mathematics.
Passed checks
30 / 30
Failed checks
0
ngspice integration cases
Not run yet
Deterministic test results
Ohm’s law · 12 V / 3 kΩ = 4 mA
Deterministic calculation against stated analytical tolerance.
Kirchhoff current law · divider
Deterministic calculation against stated analytical tolerance.
Kirchhoff voltage law · divider
Deterministic calculation against stated analytical tolerance.
RC at one time constant · 63.212%
Deterministic calculation against stated analytical tolerance.
RL at one time constant
Deterministic calculation against stated analytical tolerance.
DC motor initial di/dt · 600 A/s
Deterministic calculation against stated analytical tolerance.
DC motor RK4 step convergence
Deterministic calculation against stated analytical tolerance.
AC power · P² + Q² = S²
Deterministic calculation against stated analytical tolerance.
Unit conversion · 1000 mA = 1 A
Deterministic calculation against stated analytical tolerance.
Wind slider minimum · 0 m/s, 0 W
Deterministic calculation against stated analytical tolerance.
Wind slider intermediate · 10 m/s
Deterministic calculation against stated analytical tolerance.
Wind slider maximum · 20 m/s
Deterministic calculation against stated analytical tolerance.
Cubic wind scaling · P(20) / P(10) = 8
Deterministic calculation against stated analytical tolerance.
Wind energy conservation
Deterministic calculation against stated analytical tolerance.
Fan energy conservation
Deterministic calculation against stated analytical tolerance.
Circuit energy conservation · ΣP = 0
Deterministic calculation against stated analytical tolerance.
Motor energy residual < 0.01 J
Deterministic calculation against stated analytical tolerance.
RMS · constant DC
Deterministic calculation against stated analytical tolerance.
Reject singular numerical system
Deterministic calculation against stated analytical tolerance.
Reject missing circuit ground
Deterministic calculation against stated analytical tolerance.
Motor integration endpoint matches requested time
Deterministic calculation against stated analytical tolerance.
Reject mismatched conversion dimensions
Deterministic calculation against stated analytical tolerance.
Reverse wind preserves energy and reverses speed
Deterministic calculation against stated analytical tolerance.
Reject nonphysical Cp
Deterministic calculation against stated analytical tolerance.
Airflow changes calculated speed and electrical output
Deterministic calculation against stated analytical tolerance.
Reject nonfinite fan input
Deterministic calculation against stated analytical tolerance.
Reject negative RC observation time
Deterministic calculation against stated analytical tolerance.
Reject invalid RK4 derivative dimension
Deterministic calculation against stated analytical tolerance.
Reject negative RMS magnitude
Deterministic calculation against stated analytical tolerance.
Reject out-of-range blade pitch
Deterministic calculation against stated analytical tolerance.
Implemented foundation
Linear DC modified nodal analysis with partial pivoting and residual checks; ngspice WebAssembly netlist integration; ideal passive/source circuit models; coupled PMDC motor RK4; steady wind energy extraction; ideal fan jet energy; engineering mathematics and unit conversions.
View each component’s support status →Limitations & safety
No hardware certification, CFD, finite-element electromagnetic fields, detailed thermal network, induction/stepper/servo solver, embedded firmware emulation, or validated power-system network model. Advanced entries are reference-only. Generic diode tests do not validate a manufacturer device. Use rated isolation, overcurrent protection, and qualified supervision for hardware.