FVM Time-Step — ThermoFluidCalc

ThermoFluidCalc — Section 4 : CFD Numerical Tools — Calculator #20
Reference : Versteeg & Malalasekera; Moukalled, Mangani & Darwiche

🔨 Input Parameters

1 — Quick
Δt = V/(v·S)

2 — Convective
Multi-face

3 — Diffusive
Multi-face

4 — Combined
min(Δt_c,Δt_d)

Cell volume V (m³)

Safety factor (0 < SF ≤ 1)

Velocity v (m/s)

Face area S (m²)

Diffusivity α (m²/s)

Preset cell topologies

△ Tri 2D (3) □ Quad 2D (4) ▵ Tet 3D (4) ▭ Hex 3D (6)

#	S_f (m²)	v_n,f (m/s)	d_f (m)
1				✕

✚ Add face