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)

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