I've just dug into learning about
air density. I needed this knowledge in regards to doing some work with using the value of air density.
Apparently one can determine air density using a variety of parameters, but the most accurate may come from using atmospheric pressure, temperature, dewpoint and elevation.
I have create two calculators, a
humid air density calculator and a
dry air density calculator. I did this using a Java-based utility class for air density that a wrote a couple of weeks ago;
JAirDensity.
My question is for humid air density... I could only figure out determining the humid air density with three of the four parameters using Herman Wobus's algorithm (air pressure, temperature and dewpoint)...
However, I was not able to implement an equation that incorporates elevation... How significant is factoring in elevation for a more accurate representation of air density, and how closely do rotorcraft pilots pay attention to the value of air density, if you guys do at all?