#The volume air flow (VAF), measured here in cubic feet per minute (cfm), is a linear function of engine displacement (here in CI), compression cycles per minute (RPM/2), and volumetric efficiency (VE), as shown in the following equation.
#VAF = (CI/1728) x (RPM/2) x VE
CID:=330:
VE:=.99; #THIS IS ASSUMING 99% effiency which doesnt happen.
VAF:=(CID/1728)*(5500/2)*.99;
0.99
519.9218749
#Now for a few more calculations from my new software lol
Restart;
Restart
#i represents RPM in this case.
for i
from 1000 to 5500 by 500
do:
VAF:=(330/1728)*(i/2)*.99;
i;
end do;
94.53125000
1000
141.7968750
1500
189.0625000
2000
236.3281250
2500
283.5937500
3000
330.8593750
3500
378.1250000
4000
425.3906250
4500
472.6562500
5000
519.9218750
5500
Restart;
Restart
# so lets find out the CFM at loads.
VAF:=(330/1728)*(2000/2)*.90;
VAF:=(330/1728)*(2500/2)*.97;
VAF:=(330/1728)*(3000/2)*.93;
VAF:=(330/1728)*(4000/2)*.88;
VAF:=(330/1728)*(5000/2)*.75;
171.8750000
231.5538194
266.4062500
336.1111111
358.0729167
