Examples for

Dimensionless Quantities

From the Reynolds number to the Rayleigh number, Wolfram|Alpha can compute and provide information about dimensionless quantities used throughout physics, engineering and other fields. Find defining formulas, plug in values and obtain additional information on hundreds of dimensionless quantities using Wolfram|Alpha.
Dimensionless Quantities

Compute and obtain details on named dimensionless quantities.

Compute a dimensionless quantity:

Reynolds number rho=1000 kg/m^3, v=1 m/s, l=10 cm, eta=1 cP
Atwood number rho=1300 kg/m^3, rho=1200 kg/m^3
Eckert number 10 m/s, 0.1 J/(kg K), 273 K
Brinkman rheological number formula 0.2 m/s, 1.002 Pa s, 0.58 W/(m K), 0.5 K
Boussinesq approximation parameter formula 0.098 m/s^2, 1 g

Compute a dimensionless quantity with specified values:

Arrhenius number 300C, 84kJ/mol
Galileo number L=350um, nu=42cSt
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