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Home/Reference Data/Radiation View Factors/Enclosure/sphere-inside-large-enclosure

Sphere-Inside-Large-Enclosure — Enclosure

Geometry Class
Enclosure
Geometry Id
Sphere Inside Large Enclosure
Configuration Notes
for Any Convex Surface F11=0 (no Self-view). Summation Gives F12=1. When Enclosure Is Much Larger F21=A1/A2≈0. Classic Small-Body-in-Large-Room Assumption Used in Radiation analysis.
Formula Expression
F12=1 for Any Convex surface; F21=A1/A2→0
Geometry Description
Convex Surface (sphere Or Any Convex body) Fully Enclosed by Much Larger Surface
Param 1 Name
A1 Over A2
Param 1 Value
0
Reciprocity F21
0
Surface 1
Convex Surface (sphere)
Surface 2
Large Enclosing Surface
View Factor F12
1

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enclosure — geometry id sphere_inside_large_enclosure · configuration notes For any convex surface F11=0 (no self-view). Summation gives F12=1. When… · geometry description Convex surface (sphere or any convex body) fully enclosed by much larger surface · formula expression F12=1 for any convex surface; F21=A1/A2→0 · surface 1 Convex surface (sphere) | Radiation View Factors | Engineering Database