Boundary Layers & External Flow 3
- Boundary Layer Thickness CalculatorCalculatorVelocity, thermal and concentration boundary-layer thickness on a flat plate at the station you name, laminar…
- Displacement and Momentum Thickness CalculatorCalculatorδ*, θ and the shape factor H, with two separate threshold ladders because H = 2.6…
- Flat Plate Skin Friction CalculatorCalculatorLocal C_f and average C̄_f side by side, clearly labelled, with the wall shear, the total…
Flow Regime & Dimensionless Numbers 3
- Isentropic Flow and Stagnation Conditions CalculatorCalculatorMach number and the isentropic stagnation ratios — p₀/p, T₀/T, ρ₀/ρ and the area ratio A/A*…
- Normal Shock CalculatorCalculatorDownstream Mach number and every jump across a normal shock — p₂/p₁, T₂/T₁, ρ₂/ρ₁, p₀₂/p₀₁ and…
- Reynolds Number & Flow Regime CalculatorCalculatorRe for a round pipe, a rectangular duct, an annulus, an open channel, a flat plate,…
Internal Flow & Pressure Drop 5
- Darcy-Forchheimer Porous Media Coefficients CalculatorCalculatorTurn a measured pressure-drop curve into the viscous and inertial resistance coefficients your solver asks for:…
- Entrance Length CalculatorCalculatorHow much straight inlet duct you need before the profile is developed — hydrodynamic and thermal,…
- Hydraulic Diameter CalculatorCalculatorD_h = 4A/P for a round pipe, a rectangular or square duct, an annulus, parallel plates,…
- Minor Loss Coefficient CalculatorCalculatorK factors turned into pressure drop, head loss and an equivalent length in diameters — with…
- Pipe Friction Factor & Pressure Drop CalculatorCalculatorDarcy friction factor, pressure drop, head loss, wall shear stress and pumping power for a pipe,…
Mesh & Wall Treatment 5
- CFD Domain Size and Blockage Ratio CalculatorCalculatorHow far the inlet, outlet and side boundaries of an external-aerodynamics domain have to sit, and…
- CFD Mesh Cell Count EstimatorCalculatorHow many cells your mesh will have, and how much RAM that implies, worked out before…
- First Cell Height to y+ CalculatorCalculatorYou have already built the mesh. This says what y+ it actually reaches, whether that suits…
- Prism Layer Stack CalculatorCalculatorThe geometric series behind an inflation layer, done exactly: total thickness, last layer, the jump from…
- y+ to First Cell Height CalculatorCalculatorTurn a target y+ into the first cell height you actually have to mesh — with…
Turbulence & Time Stepping 3
- Courant Number (CFL) & Time Step CalculatorCalculatorCFL from velocity, cell size and time step, and the time step a target CFL needs…
- LES / DES Affordability CalculatorCalculatorWhether a scale-resolving run is affordable, answered before a week of cluster time is committed. Cell…
- Turbulence Inlet Conditions CalculatorCalculatorTurbulence intensity, length scale, k, ε, ω and the eddy-viscosity ratio from one velocity and one…
Verification & Solver Resources 2
- CFD Solver Memory & Runtime CalculatorCalculatorHow much RAM a case needs, whether it fits the node you have, how many cells…
- Grid Convergence Index (GCI) CalculatorCalculatorThree grids, three solutions, and the number a reviewer asks for: the observed order of convergence,…
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