Grashof Number Calculator

Gravitational Acceleration (g):

Thermal Expansion Coefficient (β):

Temperature Difference (Δ T):

Characteristic Length (L):

Kinematic Viscosity (ν):

How This Is Calculated

G r = \frac{g β Δ T L^{3}}{ν^{2}}

where:

Gr = Grashof Number (Dimensionless)

g = Gravitational Acceleration (m/s²)

β = Thermal Expansion Coefficient (K^-1)

Δ T = Temperature Difference (K)

L = Characteristic Length (m)

ν = Kinematic Viscosity (m²/s)

Assumptions

The fluid is incompressible.
The fluid flow is laminar.
Steady flow conditions.
The temperature of the fluid is uniform.

Related Calculators

Froude Number

Mach Number

Reynolds Number

Weber Number

Biot Number