A vapor cone, also known as shock collar or a shock egg, is a visible cloud...

 

Transcribed Image Text:

A vapor cone, also known as shock collar or a shock egg, is a visible cloud of condensed water which can sometimes form around an object moving at high speed through moist air, for example an aircraft flying at transonic speeds. When the localized air pressure around the object drops, so does the air temperature. In the picture below the jet is flying over ocean water where the ambient temperature is 16 Celsius, ambient pressure is 101.3 kPa (absolute) and the dew point pressure is 90.1 kPa (absolute). The angle shown on the vapor cone below is approximately 55 degrees. Estimate the relative humidity of the air and the speed of the jet in Mach number. 0=55 A vapor cone, also known as shock collar or a shock egg, is a visible cloud of condensed water which can sometimes form around an object moving at high speed through moist air, for example an aircraft flying at transonic speeds. When the localized air pressure around the object drops, so does the air temperature. In the picture below the jet is flying over ocean water where the ambient temperature is 16 Celsius, ambient pressure is 101.3 kPa (absolute) and the dew point pressure is 90.1 kPa (absolute). The angle shown on the vapor cone below is approximately 55 degrees. Estimate the relative humidity of the air and the speed of the jet in Mach number. 0=55