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Churchill-1983-1-1E11 — Sphere

Name: Natural Convection Correlations — sphere: correlation id Churchill (1983)#1-1e11 · characteristic length definition L = D (sphere diameter); properties at Tf=(Ts+Tinf)/2 except beta at Tinf · Nu correlation text Nu = 2 + 0.589*Ra^(1/4) / (1+(0.469/Pr)^(9/16))^(4/9) · orientation immersed · Ra max 100000000000 dimensionless
Creator: Engineering Database

Geometry: Sphere
Correlation Id: Churchill (1983)#1-1E11
Nu Correlation Text: Nu = 2 + 0.589*Ra^(1/4) / (1+(0.469/Pr)^(9/16))^(4/9)
Pr Range Max (dimensionless): 2,000
Pr Range Min (dimensionless): 0.7
Ra Max (dimensionless): 100,000,000,000
Ra Min (dimensionless): 1
Characteristic Length Definition: L = D (sphere diameter); Properties at Tf=(Ts+Tinf)/2 Except Beta at Tinf
Fluid Assumption: Pr >= 0.7
Orientation: Immersed

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sphere — correlation id Churchill (1983)#1-1e11 · characteristic length definition L = D (sphere diameter); properties at Tf=(Ts+Tinf)/2 except beta at Tinf · Nu correlation text Nu = 2 + 0.589*Ra^(1/4) / (1+(0.469/Pr)^(9/16))^(4/9) · orientation immersed · Ra max 100000000000 dimensionless | Natural Convection Correlations | Engineering Database