Configuration factor for element perpendicular to rectangle cfd1-2 -- Algorithm 3.15

The small element is perpendicular to the rectangle with its centre line passing through the corner.

Input

Parameters X & Y where

as in diagram

Equation

Note

Angles are expressed in radians.

The algorithm is another form of the equation for sky factor, algorithm 2.31

Source

Siegel(1)

References

1. Siegel R and Howell J R Thermal Radiation Heat Transfer (New York: McGraw Hill) (1972)