Radiation View Factors: coaxial_disks
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 |
|---|---|---|---|---|---|---|---|---|---|
| coaxial_disks | coaxial_disks_equal_Rh0p5 | R/h=0.5 → h/R=2. S=(2)^2+2=6. F12=(6-sqrt(36-4))/2=(6-sqrt(32))/2=(6-5.6569)/2=0.1716. Formula from Incropera Table 13.2. | S=(h/R)^2+2; F12=(S-sqrt(S^2-4))/2 | Two coaxial parallel disks of equal radius R; R/h=0.5 (h is separation) | R_over_h | 0.5 | Disk 1 (radius R) | Disk 2 (radius R) | 0.1716 |
| coaxial_disks | coaxial_disks_equal_Rh1p0 | R/h=1.0 → h/R=1. S=1+2=3. F12=(3-sqrt(9-4))/2=(3-sqrt(5))/2=(3-2.2361)/2=0.3820. | S=(h/R)^2+2; F12=(S-sqrt(S^2-4))/2 | Two coaxial parallel disks of equal radius R; R/h=1.0 | R_over_h | 1 | Disk 1 (radius R) | Disk 2 (radius R) | 0.382 |
| coaxial_disks | coaxial_disks_equal_Rh2p0 | R/h=2.0 → h/R=0.5. S=2.25. F12=(2.25-sqrt(2.25^2-4))/2=(2.25-sqrt(1.0625))/2=(2.25-1.03078)/2=0.6096. | S=(h/R)^2+2; F12=(S-sqrt(S^2-4))/2 | Two coaxial parallel disks of equal radius R; R/h=2.0 | R_over_h | 2 | Disk 1 (radius R) | Disk 2 (radius R) | 0.6096 |
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