The Golden Hour Lock — MySimulator

DRAG TO ORBIT SPACE PLAY/PAUSE R RESET

Live instrumentation

Water & vessel status

READY

Raise the chamber

Close the lower gate, raise the water to the upper canal level, then open the upper gate and guide the boat through.

CHAMBER LEVEL m · analytic reference

Live levelUpper targetPump-only

GATE FLOW m³/s · signed

Upper gateLower gate

The science · equations & assumptions

Gate discharge (Torricelli / orifice model)

Q = C_d A sign(Δh) √(2 g |Δh|)

Chamber continuity

dh/dt = (Qin + Qout + Qpump + Qrain − Qleak) / Alock

Rainfall input

Qrain = (r × 0.001 / 3600) Alock

Floating boat (Archimedes)

draft = mboat / (ρwater Awaterplane)
freeboard = hull depth − draft

Constants: g = 9.81 m/s²; ρwater = 1000 kg/m³; discharge coefficient C_d = 0.62; chamber area = 80 m²; hull depth = 0.92 m.

Assumptions & simplifications: incompressible water, constant density and chamber area, quasi-steady orifice flow, box-like hull with constant waterplane area. Gate motion, boat acceleration and wind sway are simplified. The pump-only curve is an analytic constant-rate reference, not a prediction of the full gate-flow system.

Credits: original procedural scene and equations; no external 3D assets.

Educational model · SI units · Not for real-world lock operation.

00:00 ELAPSED

CHAMBER FILL PHASE

2.40 m HEAD

Keeper's decision · 00:40

A branch is drifting toward the boat

Choose how to handle the passing debris. A lower throttle keeps the approach calm; proceeding is quicker but adds a little more sway.

Transfer complete

A smooth passage

★★★

The boat has reached the upper reach.

Elapsed time00:00

Final freeboard0.00 m

Peak head before opening0.00 m

FIELD GUIDE · 1 / 7

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