Calculating Gas Density at Altitude: Simple Equation for Terminal Velocity

AI Thread Summary
To calculate gas density at altitude for use in the terminal velocity equation, a simple formula is provided: p = 100 * ((44331 * 514 - z) / (11880 * 516)), where p represents density and z is altitude in meters. This equation simplifies the process by avoiding complex factors like dew point, which are often included in meteorological calculations. The discussion highlights the need for a straightforward approach to gas density calculations. The formula is shared for those seeking an efficient method to determine gas density at varying altitudes. This provides a practical solution for applications involving terminal velocity.
MegaMan64
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Hi I have been reading a lot about how to calculate gas density and I am stumped. What I would like to know is how to calculate the gas density as apposed to altitude so I can use it in the terminal velocity equation found here http://www.grc.nasa.gov/WWW/k-12/airplane/termv.html
I would like to know if there is a simple equation that can calculate the gas density with only a few factors and not with dew point and other factors that I have seen in Meteorology.
Thanks for any help with this
 
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Hi I found an formula for calculating gas density at height it anyone needs it
p = 100 * ((44331 * 514 - z)/ (11880 * 516))
p is density and z is altitued in meters.
 
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