In the Great Lakes areas of the US, during the cold season, a freezing rain sometimes occurs, during which it rains liquid but forms an ice sleet on the roads, tree branches, power lines, etc. A subcooled raindrop with the temperature below the freezing point instantly freezes as it comes into contact with any cold surface. In 2009, a passenger plane crashed into a residential area near Buffalo, NY, due to an ice buildup on its outer surfaces which made the plane heavier and likely caused a loss of lift. One of the methods of "deicing" airplane wings during a flight is redirecting some of the heat from the engine to melt the ice away and to keep the surface temperature above the freezing point. Let's consider a simplified model for this design. The top surface of a plane wing is modeled as a 2-D flat plate with its length L = 1.7 m from the leading edge to the trailing edge. Air flows over the surface with free stream pressure and temperature at p = 1 atm and To =265 K. The surface temperature is constant at T = 275 K. The free stream velocity of the air is V = 70 m/s. What is the heat transfer rate per unit span of the surface, q' in W/m? You should interpolate the property table using the reference temperature. Air Too V Ts
In the Great Lakes areas of the US, during the cold season, a freezing rain sometimes occurs, during which it rains liquid but forms an ice sleet on the roads, tree branches, power lines, etc. A subcooled raindrop with the temperature below the freezing point instantly freezes as it comes into contact with any cold surface. In 2009, a passenger plane crashed into a residential area near Buffalo, NY, due to an ice buildup on its outer surfaces which made the plane heavier and likely caused a loss of lift. One of the methods of "deicing" airplane wings during a flight is redirecting some of the heat from the engine to melt the ice away and to keep the surface temperature above the freezing point. Let's consider a simplified model for this design. The top surface of a plane wing is modeled as a 2-D flat plate with its length L = 1.7 m from the leading edge to the trailing edge. Air flows over the surface with free stream pressure and temperature at p = 1 atm and To =265 K. The surface temperature is constant at T = 275 K. The free stream velocity of the air is V = 70 m/s. What is the heat transfer rate per unit span of the surface, q' in W/m? You should interpolate the property table using the reference temperature. Air Too V Ts
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:In the Great Lakes areas of the US, during the cold season, a freezing rain
sometimes occurs, during which it rains liquid but forms an ice sleet on
the roads, tree branches, power lines, etc. A subcooled raindrop with the
temperature below the freezing point instantly freezes as it comes into
contact with any cold surface. In 2009, a passenger plane crashed into a
residential area near Buffalo, NY, due to an ice buildup on its outer
surfaces which made the plane heavier and likely caused a loss of lift.
One of the methods of "deicing" airplane wings during a flight is
redirecting some of the heat from the engine to melt the ice away and to
keep the surface temperature above the freezing point. Let's consider a
simplified model for this design.
The top surface of a plane wing is modeled as a 2-D flat plate with its
length L = 1.7 m from the leading edge to the trailing edge. Air flows
over the surface with free stream pressure and temperature at p = 1 atm
and T = 265 K. The surface temperature is constant at T = 275 K. The
free stream velocity of the air is V= 70 m/s. What is the heat transfer rate
per unit span of the surface, q' in W/m? You should interpolate the
property table using the reference temperature.
Air
Too
V
Ts
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