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Update ExternalComponent.java

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Surface roughness comments
This commit is contained in:
H Craig Miller 2022-12-12 09:45:00 -08:00
parent 04177a99f7
commit a8ace36600
1 changed files with 15 additions and 0 deletions
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15
core/src/net/sf/openrocket/rocketcomponent/ExternalComponent.java
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@ -20,6 +20,12 @@ import net.sf.openrocket.unit.UnitGroup;
public abstract class ExternalComponent extends RocketComponent {
public enum Finish {
/* The surface roughness changes are intended to begin the implementation of known values derived from
* the Thesis and Hoerner Fluid Dynamics. It is anticipated that the ability to enter a custom surface
* roughness value will be added as a feature in the future.
*/
//// Rough
ROUGH("ExternalComponent.Rough", 500e-6),
//// Rough unfinished
@ -34,6 +40,15 @@ public abstract class ExternalComponent extends RocketComponent {
OPTIMUM("ExternalComponent.Optimumpaint", 5e-6),
//// Polished
POLISHED("ExternalComponent.Polished", 2e-6),
/* The "polished" surface roughness was originally set at 2.0 microns. However, after reviewing the Thesis
* and Hoerner Fluid Dynamics, upon which the Thesis surface roughness values were based, it was determined
* that the "polished" surface roughness should have been 0.5 microns. To reduce the potential for causing
* inadvertent errors, "POLISHED" was retained and "FINISHPOLISHED" added, with the correct values for each.
* "POLISHED" is now described to the user as "Aircraft sheet-metal" with a value of 2.0 microns and
* "FINISHPOLISHED" is now described to the user as "Polished" with a value of 0.5 microns.
*/
//// Optimum paint
FINISHPOLISHED("ExternalComponent.Finishedpolished", .5e-6),
//// Optimum paint