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correct wetted area calculation

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This commit is contained in:
JoePfeiffer 2022-05-03 15:51:40 -06:00
parent 1e0734ae1f
commit 30dcdda0bf
1 changed files with 2 additions and 2 deletions
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4
core/src/net/sf/openrocket/aerodynamics/barrowman/TubeFinSetCalc.java
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@ -101,9 +101,9 @@ public class TubeFinSetCalc extends TubeCalc {
// body tube, only consider the other half of the area // body tube, only consider the other half of the area
final double outerArea = tubes.getLength() * Math.PI * tubes.getOuterRadius(); final double outerArea = tubes.getLength() * Math.PI * tubes.getOuterRadius();
// Surface area of the portion of the body tube masked by the tube fins // Surface area of the portion of the body tube masked by the tube fins, per tube
final BodyTube parent = (BodyTube) tubes.getParent(); final BodyTube parent = (BodyTube) tubes.getParent();
final double maskedArea = tubes.getLength() * 2.0 * Math.PI * parent.getOuterRadius(); final double maskedArea = tubes.getLength() * 2.0 * Math.PI * parent.getOuterRadius() / tubes.getFinCount();
wettedArea = outerArea - maskedArea; wettedArea = outerArea - maskedArea;
log.debug("wetted area of tube fins " + wettedArea); log.debug("wetted area of tube fins " + wettedArea);