- #1
Deepesh
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Why do we take ISA conditions(Atm. Temperature, Atm. Pressure) as static and not stagnation?
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Standard atmospheric conditions refer to the typical conditions of temperature, pressure, and humidity found in the Earth's atmosphere at sea level. These conditions are used as a baseline for comparison in scientific experiments and engineering calculations.
The standard temperature at sea level is 15 degrees Celsius (59 degrees Fahrenheit) and the standard pressure is 101.325 kilopascals (kPa) or 1 atmosphere (atm). This is commonly referred to as "STP."
As altitude increases, the temperature and pressure of the atmosphere decrease. This is due to the decrease in air density as altitude increases. The humidity may also vary at different altitudes, depending on factors such as location and weather patterns.
Standard atmospheric conditions provide a consistent baseline for scientists to compare and analyze data. This allows for more accurate and reliable results in experiments and calculations.
Changes in standard atmospheric conditions can have a significant impact on our daily lives, especially in terms of weather and air quality. For example, changes in temperature and humidity can affect our comfort levels and changes in air pressure can impact aircraft flight. Changes in atmospheric conditions can also affect plant growth and crop production.