hongshaorou/openrocket
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Compute the radius of the tube fin based on number of tubes.

Browse Source
This commit is contained in:
kruland2607 2014-11-10 12:35:51 -06:00
parent c2df4f707d
commit fcd3220633
1 changed files with 15 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
core/src/net/sf/openrocket/rocketcomponent/TubeFinSet.java
View File

@ -76,8 +76,22 @@ public class TubeFinSet extends ExternalComponent {
r = ((SymmetricComponent) c).getAftRadius();
}
}
if (r < 0)
if (r < 0) {
r = DEFAULT_RADIUS;
} else {
// for 5,6, and 8 fins, adjust the diameter to provide touching fins.
switch (fins) {
case 5:
r *= 1.43; // sin(36) / (1- sin(36), 36 = 360/5/2
break;
case 7:
r *= 0.77; // sin(25.7) / (1- sin(25.7)
break;
case 8:
r *= 0.62; // sin(22.5) / (1- sin(22.5)
break;
}
}
return r;
}
return outerRadius;