Parameter

Values

Description

SPLFAC

< Real > 0.0 >

Default = 1.0

This parameter specifies the scale factor (q) used to calculate the Sound Pressure Level in Radiated Sound Analysis. The equation used for the calculation is:

Sound Pressure

Total Complex Acoustic Sound Pressure requested by SPL is:

Where,

f is the frequency of the sound wave in the medium.

is the density of the acoustic medium defined by PARAM, SPLRHO.

is the distance from the acoustic source grid j on the panel to the microphone location grid (see Figure 1).

is the velocity flux of the source grid j.

k is the wave number as defined in Wave Number.

i is the square root of -1

np is the number of source grids (see Figure 1).

q is the value of the scale factor specified using the parameter PARAM, SPLFAC.