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Home/Reference Data/Radiation View Factors/Concentric Cylinders/concentric-cylinders-r0p25

Concentric-Cylinders-R0P25 — Concentric Cylinders

Geometry Class
Concentric Cylinders
Geometry Id
Concentric Cylinders R0P25
Configuration Notes
Inner Cylinder Is Convex So F11=0 and F12=1 (all Radiation Hits Outer cylinder). Reciprocity: 2pi*r1*L*1=2pi*r2*L*F21 → F21=r1/r2=0.25. Outer Cylinder Self-view: F22=1-R1/R2=0.75.
Formula Expression
F12=1; F21=r1/r2
Geometry Description
Two Concentric Infinitely Long cylinders; Radius Ratio R1/R2=0.25
Param 1 Name
R1 Over R2
Param 1 Value
0.25
Reciprocity F21
0.25
Surface 1
Inner Cylinder Surface (radius R1)
Surface 2
Outer Cylinder Surface (radius R2)
View Factor F12
1

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concentric_cylinders — geometry id concentric_cylinders_r0p25 · configuration notes Inner cylinder is convex so F11=0 and F12=1 (all radiation hits outer… · geometry description Two concentric infinitely long cylinders; radius ratio r1/r2=0.25 · param 1 value 0.25 · reciprocity F21 0.25 | Radiation View Factors | Engineering Database