Strutt|Propagation|SEL from Moving Point Source inserts the Sound Exposure Level (SEL) from a moving point source into the active row of the worksheet.
The SEL from a moving point source is calculated by:
`SEL = L_max+10log_10(K_r/V)`, where `0 <= K_r <= pi`
For a completely directional source, `K_r=0`; for an omnidirectional source, `K_r=pi`
A value of `K_r = 1.83` is suggested for aircraft noise. For diesel locomotives, the directivity characteristics of the source lead to a maximum value of 2.0 for `K_r`.
`V` is the velocity of moving point source.