Radiation View Factors: parallel_plates
Radiation view factors (F12) for common geometric configurations — parallel plates, perpendicular surfaces, concentric cylinders/spheres, coaxial disks, enclosures
| geometry class | geometry id | configuration notes | formula expression | geometry description | param 1 name | param 1 value | surface 1 | surface 2 | view factor F12 |
|---|---|---|---|---|---|---|---|---|---|
| parallel_plates | inf_parallel_strips_W0p5 | 2D crossed-string (Hottel) method. W=0.5: F12=sqrt(1+4)-2=sqrt(5)-2=2.2361-2=0.2361. As W→inf F12→1; as W→0 F12→0. F21=F12 by symmetry (equal areas per unit length). | F12=sqrt(1+(1/W)^2)-(1/W); W=w/L | Two infinitely long parallel equal-width strips; width-to-separation ratio W=w/L=0.5 | W_ratio | 0.5 | Infinite strip 1 (width w) | Infinite strip 2 (width w) | 0.2361 |
| parallel_plates | inf_parallel_strips_W10p0 | W=10.0: F12=sqrt(1+0.01)-0.1=sqrt(1.01)-0.1=1.00499-0.1=0.9050. | F12=sqrt(1+(1/W)^2)-(1/W); W=w/L | Two infinitely long parallel equal-width strips; W=w/L=10.0 | W_ratio | 10 | Infinite strip 1 (width w) | Infinite strip 2 (width w) | 0.9051 |
| parallel_plates | inf_parallel_strips_W1p0 | W=1.0: F12=sqrt(2)-1≈0.4142. F21=F12 by symmetry. | F12=sqrt(1+(1/W)^2)-(1/W); W=w/L | Two infinitely long parallel equal-width strips; W=w/L=1.0 | W_ratio | 1 | Infinite strip 1 (width w) | Infinite strip 2 (width w) | 0.4142 |
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