Flare testing raw data
Round one - 50 litre twin driver box 240w
Calculated Power = ( Voltage squared ) / 7
|
Port
Dia / Flare radius
( mm) |
Area
Ratio
|
Voltage
|
Power
(Watts) |
Velocity
(m/sec) |
|
51
/ 10
|
1.94
|
2.4
@ 30hz
|
0.82
@ 30hz
|
5.3
@ 30hz
|
|
86 unflared |
1
|
5 @15hz 3.5 @ 20hz 4 @25hz 5 @ 30hz 6 @ 35hz |
3.6 @15hz 1.8 @ 20hz 2.3 @25hz 3.8 @ 30hz 5.1 @ 35hz |
3.4 @15hz 3.3 @ 20hz 3.7 @25hz 4.0 @ 30hz 3.8 @ 35hz |
|
86 / 10 |
1.5
|
6.5 @15hz 4.5 @ 20hz 5 @25hz 8.8 @ 30hz 15 @ 35hz |
6.0 @15hz 2.9 @ 20hz 3.6 @25hz 11.1 @ 30hz 32.1 @ 35hz |
4.4 @15hz 4.1 @ 20hz 4.6 @25hz 6.9 @ 30hz 9.5 @ 35hz |
|
86 / 25 |
2.5
|
10 @15hz 8 @ 20hz 8.8 @25hz 15 @ 30hz 20 @ 35hz |
14.3 @15hz 9.1 @ 20hz 11.1 @25hz 32.1 @ 30hz 57.1 @ 35hz |
6.8 @15hz 7.3 @ 20hz 8.1 @25hz 11.7 @ 30hz 12.7 @ 35hz |
|
86 / 35 |
3.3
|
11 @15hz 8.5 @ 20hz 10 @25hz 19 @ 30hz 32 @ 35hz |
17.3 @15hz 10.3 @ 20hz 14.3 @25hz 51.6 @ 30hz 146 @ 35hz |
7.5 @15hz 7.8 @ 20hz 9.2 @25hz 14.8 @ 30hz 20.3 @ 35hz |
|
86 / 50 |
4.7
|
16 @15hz 15 @ 20hz 16 @25hz 25 @ 30hz plim @ 35hz |
36.6 @15hz 32.1 @ 20hz 36.6 @25hz 89.3 @ 30hz plim @ 35hz |
10.9 @15hz 13.8 @ 20hz 14.6 @25hz 19.5 @ 30hz @ 35hz |
|
103 / 30 |
2.5
|
16 @15hz 15 @ 20hz 18 @25hz 31 @ 30hz plim @ 35hz |
36.6 @15hz 32.1 @ 20hz 46.3 @25hz 137 @ 30hz plim @ 35hz |
7.6 @15hz 9.6 @ 20hz 11.5 @25hz 16.8 @ 30hz @ 35hz |
|
The 51/10 port was only tested at 30hz because it was difficult to get a consistent result. If accurate data is required for this diameter, a series of ports with larger flares would be required. There are no plans for this at the moment. |
Round two - Variable volume quad driver box 350w
Calculated Power = ( Voltage squared ) / 3.5
86mm ports tested in 70 Litre Box
|
Port
dia / Flare radius
(mm) |
Area
Ratio
|
Voltage
|
Power
(watts) |
Velocity
(m/sec) |
|
86
/ 63
|
6.0
|
11 @15hz 10 @ 20hz 12 @25hz 22 @ 30hz 32 @ 35hz |
35 @15hz 29 @ 20hz 41 @25hz 138 @ 30hz 293 @ 35hz |
16 @15hz 16.3 @ 20hz 16.3 @25hz 24 @ 30hz 29.4 @ 35hz |
|
86
/ 71
|
7.0
|
12 @15hz 10 @ 20hz 12 @25hz 22 @ 30hz 32 @ 35hz |
41 @15hz 29 @ 20hz 41 @25hz 138 @ 30hz 293 @ 35hz |
17.3 @15hz 16.3 @ 20hz 16.3 @25hz 24 @ 30hz 29.4 @ 35hz |
103mm ports tested in 100 Litre Box
|
Port
dia / Flare radius
(mm) |
Area
Ratio
|
Voltage
|
Power
(watts) |
Velocity
(m/sec) |
|
103
/ 13
|
1.5
|
8 @15hz 6 @ 20hz 7 @25hz 9 @ 30hz 19 @ 35hz |
18 @15hz 10 @ 20hz 14 @25hz 23 @ 30hz 103 @ 35hz |
7.7 @15hz 7.6 @ 20hz 8.8 @25hz 9.4 @ 30hz 16.1 @ 35hz |
|
103
/ 52
|
4.0
|
18 @15hz 14 @ 20hz 17 @25hz 25 @ 30hz Plim @ 35hz |
93 @15hz 56 @ 20hz 83 @25hz 179 @ 30hz Plim @ 35hz |
17.5 @15hz 18.0 @ 20hz 21.4 @25hz 26.2 @ 30hz Plim @ 35hz |
|
103
/ 64
|
5.0
|
19 @15hz 15 @ 20hz 17 @25hz 30 @ 30hz |
103 @15hz 64 @ 20hz 86 @25hz 257 @ 30hz |
18.4 @15hz 19.3 @ 20hz 21.8 @25hz 31.3 @ 30hz |
|
103
/ 75
|
6.0
|
20 @15hz 16 @ 20hz 17 @25hz 30 @ 30hz |
114 @15hz 73 @ 20hz 83 @25hz 257 @30hz |
19.3 @15hz 20.6 @ 20hz 21.4 @25hz 31.3 @ 30hz |
152mm ports tested in 160 Litre Box
|
Port
dia / Flare radius
(mm) |
Area
Ratio
|
Voltage
|
Power
(watts) |
Velocity
(m/sec) |
|
152
/ 13
|
1.3
|
18 @15hz 10 @ 20hz 11 @25hz 19 @ 30hz |
93 @15hz 29 @ 20hz 35 @25hz 103 @ 30hz |
7.6 @15hz 6.3 @ 20hz 8.6 @25hz 13.4 @ 30hz |
|
152
/ 25
|
1.7
|
Xlim @15hz 17 @ 20hz 17 @25hz 27 @ 30hz |
Xlim @15hz 83 @ 20hz 83 @25hz 208 @ 30hz |
Xlim @15hz 10.7 @ 20hz 13.2 @25hz 19.0 @ 30hz |
Summary of 30hz data as graphed on the Flare testing page
|
Port
dia / Flare radius
(mm) |
Area
Ratio
|
"Chuffing" velocity @30hz
(m/sec) |
|
51
/ 10
|
1.94
|
5.3
|
|
86
unflared
|
1
|
4.0
|
|
86
/ 10
|
1.5
|
6.9
|
|
86
/ 25
|
2.5
|
11.7
|
|
86
/ 35
|
3.3
|
14.8
|
|
86
/ 50
|
4.7
|
19.5
|
|
86
/ 63
|
6.0
|
24
|
|
86
/ 71
|
7.0
|
24
|
|
103
/ 13
|
1.5
|
9.4
|
|
103
/ 30
|
2.5
|
16.8
|
|
103
/ 52
|
4.0
|
26.2
|
|
103
/ 64
|
5.0
|
31.3
|
|
103
/ 75
|
6.0
|
31.3
|
|
152
/ 13
|
1.3
|
13.4
|
|
152
/ 25
|
1.7
|
19.0
|
Last update to this page 05/03/06
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