AVIATION PHYSICS-Finals for Aeronautical Engineering students

Aviation physics lecture

1. AVIATION PHYSICS Engr. Christian joy m. reyes

2. FUNDAMENTALS OF AERODYNAMICS Aerodynamics it is the study of the motion of air and of the forces on solids in motion relative to the air. -The science relating to the effects produced by air or other gases in motion. The study of the properties of moving air, and especially of the interaction between the air and solid bodies moving through it.

3. THE INTERNATIONAL STANDARD ATMOSPHERE The atmosphere is the mechanical mixture of gases surrounding the earth. Atmospheric Constituents Nitrogen 78.03% Oxygen 20.99% Argon 0.94% Carbon Dioxide 0.03% Hydrogen 0.01% Helium 0.004% Neon 0.0012% and small amount of water vapor and other gases.

4. Four (4) Layers of Earth’s Atmosphere 1. Troposphere 2. Stratosphere 3. Ionosphere 4. Exosphere

5. ALTIMETERS An altimeter is a pressure gauge which indicates an altitude in the standard atmosphere corresponding to the measured pressure. Pressure altitude, ℎ𝑝 - Is the altitude given by an altimeter set to 29.92”Hg Density altitude, ℎ𝑑 - Is the altitude corresponding to a given density in the standard atmosphere. Temperature altitude, ℎ𝑡 - Is the altitude corresponding to a given temperature in the standard atmosphere.

6. STANDARD VALUES FOR AIR AT SEA LEVEL

7. SEA LEVEL UP TO TROPOPAUSE

8. SEA LEVEL UP TO TROPOPAUSE

9. SEA LEVEL UP TO TROPOPAUSE

10. SEA LEVEL UP TO TROPOPAUSE

11. Sample problems Calculate the pressure, density and temperature at 25,000 ft altitude in standard atmosphere Calculate the pressure, density, and temperature 1,200 meters altitude in standard atmosphere given that the true temperature is 16 degree Celsius at that height.