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Consider a flat plate at an angle of attack in a viscous supersonic flow; i.e., there is both skin friction drag and wave drag on the plate. Use linear theory for the lift and wave-drag coefficients. Denote the total skin friction drag coefficient by
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Chapter 12 Solutions
Fundamentals of Aerodynamics
- Complete solution and Fbd only. I prefer handwritten solution. I will Upvote A rod is composed of three segments subjected to axial loads as shown. The propertiesof each segment are given in the provided table. Determine the failure stresses of eachmaterial if the whole assembly experienced:a. A total temperature drop of 50°C and sprung 1.2 mm.b. A total temperature rise of 50°C, and assuming it is firmly attached to unyieldingsupports.Assume FS = 1.85. ANSWERS: (a) σfail St = 356.952 MPa σfail Br = 93.126 MPa σfail Al = 91.615 MPa (b) σfail St = 320.754 MPa σfail Br = 148.912 MPa σfail Al =arrow_forwardComplete solution and Fbd only. I prefer handwritten solution. I will Upvote Three cables at an ambient temperature of 75°C are connected in series. The assemblyis subjected to a total tension force P = 3.75 kN. The properties of the three cables aregiven in the provided table.a. At 100°C, what is the total elongation of the assembly?b. If the said cables are arranged in a parallel assembly, determine the stress anddeformation of each cable subjected to the same tension force given andtemperature change in (a). answers: (a) δtotal = 19.969 mm(b) σA = 50.357 MPa; δA = 1.923 mm σB = 160.858 MPa; δB = 2.486 mm σC = 78.836 MPa; δC = 2.196arrow_forwardFind the heat transfer per unit area through the composite wall. Assume one dimensional heat flow.Please DO NOT USE AI, I need a real answer.arrow_forward
- Determine the heat transfer per unit area through the composite wall that is outlined. Assume a one-dimensional heat flow.arrow_forwardWhat is gearboxarrow_forward3 Water at 15°C ( p = 999.1 kg/m³ and µ = 1.138 × 10¯³kg/m.s) is flowing steadily in a 34-m-long and 6-cm-diameter horizontal pipe made of stainless steel at a rate of 10 L/s. Determine the pressure drop, the head loss, and the pumping power requirement to overcome this pressure drop. The roughness of stainless steel is 0.002 mm. 10 L/s 6 cm L The pressure drop is 34.77 kPa. The head loss is 3.55 m. (Round the final answer to two decimal places.) The pumping power requirement is 0.348 kW. (Round the final answer to three decimal places.)arrow_forward
- 6 10 ints awarded Scored Gasoline ( p = 680 kg/m³ and v = 4.29 × 107 m²/s) is transported at a rate of 240 L/s for a distance of 2 kilometre. The surface roughness of the piping is 0.03 mm. If the head loss due to pipe friction is not to exceed 14 m, determine the minimum diameter of the pipe using the third Swamee-Jain formula. (Round the final answer to three decimal places.) The minimum diameter of the pipe is 0.443 m.arrow_forward1 Water at 15°C ( p = 999.1 kg/m³ and µ = 1.138 × 10¯¯³kg/m.s) is flowing steadily in a 34-m-long and 6-cm-diameter horizontal pipe made of stainless steel at a rate of 10 L/s. Determine the pressure drop, the head loss, and the pumping power requirement to overcome this pressure drop. The roughness of stainless steel is 0.002 mm. eBook Hint 10 L/s 6 cm L The pressure drop is The head loss is kPa. |m. (Round the final answer to two decimal places.) The pumping power requirement is three decimal places.) kW. (Round the final answer toarrow_forward3 eBook Hint Air enters an 15-m-long section of a rectangular duct of cross section 15 cm x 20 cm made of commercial steel at 1 atm and 35°C at an average speed of 5 m/s. Disregarding the entrance effects, determine the fan power needed to overcome the pressure losses in this section of the duct. The properties of air at 1 atm and 35°C are p = 1.145 kg/m³, µ = 1.895 × 10−5 kg/m·s, and v = 1.655 × 10¯5m²/s. The roughness of commercial steel surfaces is = 0.000045 m. (Round the final answer to three decimal places.) L 15 cm Air 20 cm 5 m/s The fan power needed to overcome the pressure losses is 4.0695 W.arrow_forward
- 12) A particle is moving along a circular path having a radius of 6 in. such that its position as a function of time is given by 0 = sin 3t, where 0 is in radians, the argument for the sine are in radians, and t is in seconds. Determine the acceleration of the particle at 0 = 30°. The particle starts from rest at 0 = 0°.arrow_forward6) == The particle travels along the path defined by the parabola y 0.5x2. If the component of velocity along the x axis is Vx = (5t) ft/s, where t is in seconds, determine the particle's distance from the origin O and the magnitude of its acceleration when t = 1s. When t 0, x = 0, y = 0. =arrow_forward7) Determine the minimum initial velocity vo and the corresponding angle 00 at which the ball must be kicked in order for it to just cross over the 3-m high fence. VO θα 6 m 3 marrow_forward
Principles of Heat Transfer (Activate Learning wi...Mechanical EngineeringISBN:9781305387102Author:Kreith, Frank; Manglik, Raj M.Publisher:Cengage Learning
Refrigeration and Air Conditioning Technology (Mi...Mechanical EngineeringISBN:9781305578296Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill JohnsonPublisher:Cengage Learning