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Dynamic viscosity of atmospheric air
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Head loss coefficient applicable to partially open ball valve
Triangular weir
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Grashof's number
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Default
Input data
Expansion coefficient, in 1/K (β)
-
-
Superficial temperature
°C
°F
K
Fluid temperature
°C
°F
K
Characteristic length
m
mm
cm
km
ft
in
mi
µm
Kinematic viscosity, in m²/s
-
-
Output data
Grashof's number
-
-
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Description
Dimensionless parameter that correlate natural convection data.
References
WELTY, James R.; RORRER, Gregory L.; FOSTER, David G. Fundamentos de Transferência de Momento, de Calor e de Massa, 6ª edição. Grupo GEN, 2017.