Fundamentals of Aerodynamics
6th Edition
ISBN: 9781259129919
Author: John D. Anderson Jr.
Publisher: McGraw-Hill Education
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Chapter 19, Problem 19.6P
To determine
The profile of total temperature through the boundary layer is a function of the velocity profile via
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Chapter 19 Solutions
Fundamentals of Aerodynamics
Ch. 19 - The wing on a Piper Cherokee general aviation...Ch. 19 - For the case in Problem 19.1, calculate the...Ch. 19 - For the case in Problem 19.1, calculate the...Ch. 19 - Consider Mach 4 flow at standard sea level...Ch. 19 - Repeat Problem 19.4 for the case of all turbulent...Ch. 19 - Prob. 19.6PCh. 19 - Prob. 19.7P
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- Consider a Lear jet flying at a velocity of 250 m/s at an altitude of 10 km,where the density and temperature are 0.414 kg/m3 and 223 K,respectively. Consider also a one-fifth scale model of the Lear jet beingtested in a wind tunnel in the laboratory. The pressure in the test section ofthe wind tunnel is 1 atm = 1.01 × 105 N/m2. Calculate the necessaryvelocity, temperature, and density of the airflow in the wind-tunnel testsection such that the lift and drag coefficients are the same for thewind-tunnel model and the actual airplane in flight.arrow_forwardAn air-hockey puck has a mass of 50 g and is 9 cm in diameter.When placed on the air table, a 20 °C air film, of0.12-mm thickness, forms under the puck. The puck isstruck with an initial velocity of 10 m/s. Assuming a linearvelocity distribution in the air film, how long will it takethe puck to ( a ) slow down to 1 m/s and ( b ) stop completely?Also, ( c ) how far along this extremely long table will thepuck have traveled for condition ( a )?arrow_forwardASAParrow_forward
- What are the physical and quantitative evidence of turbulence in fluid flow?arrow_forwardDiscuss the flow properties of Newtonian and Non-Newtonian liquids.arrow_forwardAir is flowing at a speed of 30 m/sec over a flat plate. The air temperature is 20o C and its pressure is 1 atm. The plate is kept at a constant temperature of 65o C. What is the heat transfer rate per unit length between 7.5 cm to 30 cm, from the edge of the plate?arrow_forward
- A rod of diameter 0,08 m and length 0,13 m is inside a concentric cylindrical casing. The rod and its casing are vertically located. A liquid of density 900 kg/m3 and viscosity 0.9 Pa.s is used as a lubrication medium between rod and its casing. The rod is rotated at a speed of 46 rad/s. Due to the narrow clearance 0,03 m between rod and casing gravitational effects and surface curvature effects are ignored . Assume liquid flow in clearance as laminar steady and incompressible and use pi number, π = 3.14 a) What is the magnitude of shearing stress over the rod (in Pa)? b) What is the magnitude of frictional torque on rod (in N m)? c) What is the magnitude of Reynolds Number of flow ? Use clearence as dimensional characteristics in Reynolds Number calculationarrow_forwardpleasearrow_forwardASSIGNMENT A flat plate with a length of 2.4 m and width 0.9 m moves horizontally with velocity 1 m/s in still air with a density 1.21 kg/m³ and kinematic viscosity of 1.49 x 105 m²/s. Determine 8, 8*, 0 at 2.4 m from the leading edge, and to Cf Cof and Df by using the Von Karman approximate method. The boundary layer is laminar, solve the problem by using the following velocity profiles. Determine the corresponding percentage error for the calculated 8, 8*, and 0. (i) Linear (ii) Parabolic (iii) Cubic (iv) Sin wave (u/U)=y/8 21 21 21 U =sin 28arrow_forward
- Q4: Air at 20°C and with 1 Bar Pressure is flowing over a flat plate at a velocity of 2.801 m/s. If the plate is 27.5 cm wide and at 60°C, calculate the value of Boundary layer thickness, Average friction coefficient, Shear stress due to friction, Local convective heat transfer coefficient, Average heat transfer coefficient, Rate of heat transfer by convection and Total Drag on the plate. The properties at 40°C are: Density: 1.1298 kg/m³, cp = 1.005 kJ/kg°C, k= 0.02777 w/m°C, Kinematic viscosity is 17.12 x 10-6 m2/sarrow_forwardPlease answer the problems. Show the complete solution.arrow_forwardEvaluate the capillary number for water at 20°C and a velocity of 5 cm/s. For water at 20°C, p = 0.001 kg/m-s and Y= 0.0728 N/m.arrow_forward
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