Pressure gradient in the vertical direction (z) is: (eq. 1) dP dzpg This differential equation can...
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Pressure gradient in the vertical direction (z) is: (eq. 1) dP dzpg This differential equation can be integrated when the density is a constant and give you the well-known pressure equation of AP pg (22-21). Now what if the density is not a constant? What happens to the pressure equation if the density of air as an ideal gas varies with pressure and temperature? The purpose of this lab is to solve the differential equation (eq. 1), assuming a variable air density governed by the ideal gas equation: P=pRT (eq. 2) where P is pressure, p is the density, R is the gas constant and is the temperature. Now look at the temperature distribution in Troposphere (fig 1). Assume that the temperature profile is given by the following function of height T (z): T(z) Ta - Bz (eq. 3) where To is the temperature at sea level (z=0), and 3 is the lapse rate (the rate of change of temperature with elevation). Now combine the equations 1,2 and 3 and set up the differential equation of pressure gradient for Troposphere. 1) Solve the differential equation and find the pressure in troposphere as a function of height. Pressure gradient in the vertical direction (z) is: (eq. 1) dP dzpg This differential equation can be integrated when the density is a constant and give you the well-known pressure equation of AP pg (22-21). Now what if the density is not a constant? What happens to the pressure equation if the density of air as an ideal gas varies with pressure and temperature? The purpose of this lab is to solve the differential equation (eq. 1), assuming a variable air density governed by the ideal gas equation: P=pRT (eq. 2) where P is pressure, p is the density, R is the gas constant and is the temperature. Now look at the temperature distribution in Troposphere (fig 1). Assume that the temperature profile is given by the following function of height T (z): T(z) Ta - Bz (eq. 3) where To is the temperature at sea level (z=0), and 3 is the lapse rate (the rate of change of temperature with elevation). Now combine the equations 1,2 and 3 and set up the differential equation of pressure gradient for Troposphere. 1) Solve the differential equation and find the pressure in troposphere as a function of height.
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step1 To solve the differential equation for pressure gradient in the troposphere we can substitute the expressions for pressure density and temperatu... View the full answer
Related Book For
Modern Classical Physics Optics Fluids Plasmas Elasticity Relativity And Statistical Physics
ISBN: 9780691159027
1st Edition
Authors: Kip S. Thorne, Roger D. Blandford
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