1. Explain the variation of temperature in various regimes of earth's atmosphere. 2. Draw the pressure distribution around a 2-D aerofoil. 3. Explain span efficiency factor. 4. Wha... 1. Explain the variation of temperature in various regimes of earth's atmosphere. 2. Draw the pressure distribution around a 2-D aerofoil. 3. Explain span efficiency factor. 4. What is meant by aerodynamic center? 5. What are the various propeller coefficients? 6. Derive an expression for circular velocity. 7. Define the terms Range and Endurance of an aircraft. 8. How is aerodynamic balancing of control surfaces done in an aircraft? 9. What do you mean by wind tunnel balances? 10. What is meant by range and endurance of an aircraft? 11. a) What do you mean by temperature, pressure and density altitudes? b) Consider an airplane flying at an altitude where the pressure and temperature are 25.37 Kpa and 216.66 K, respectively. Calculate the pressure and density altitudes at which the airplane is flying. 12. a) Explain how lift coefficient can be obtained from pressure coefficient.
Understand the Problem
The questions are asking for explanations and calculations related to aerodynamics and aircraft performance, including temperature variation, pressure distribution, aerodynamic center, and lift coefficients.
Answer
Temperature changes with altitude across atmospheric layers: decreases in Troposphere, increases in Stratosphere, decreases in Mesosphere, and increases in Thermosphere.
Temperature varies across the atmospheric layers: Troposphere decreases with altitude, Stratosphere increases due to ozone absorption, Mesosphere decreases again, and Thermosphere increases due to solar radiation absorption.
Answer for screen readers
Temperature varies across the atmospheric layers: Troposphere decreases with altitude, Stratosphere increases due to ozone absorption, Mesosphere decreases again, and Thermosphere increases due to solar radiation absorption.
More Information
The temperature variation is related to how solar radiation and heat are absorbed and emitted by different atmospheric components, with each layer having unique characteristics.
Tips
A common mistake is assuming temperature only decreases with altitude. Different layers have distinct temperature trends.
Sources
- Atmospheric Temperature Profile - study.com
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