A projectile travelling at supersonic speed produces a Mach cone angle of 30 b) degree. Calculate the static temperature of the air and the velocity of the projectile when the relative total temperature of the air in which it is travelling is 15 °C. The ratio of specific heats for air is 1.4 and its gas constant is 287 kJ/kg-K. c) find such a nozzle in use? Briefly explain what a convergent-divergent nozzle is. Where are you likely to

A projectile travelling at supersonic speed produces a Mach cone angle of 30 b) degree. Calculate the static temperature of the air and the velocity of the projectile when the relative total temperature of the air in which it is travelling is 15 °C. The ratio of specific heats for air is 1.4 and its gas constant is 287 kJ/kg-K. c) find such a nozzle in use? Briefly explain what a convergent-divergent nozzle is. Where are you likely to

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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For Air: y = 1.4 PART B Question B1 a) With the aid of sketches give a clear account of the operation of convergent nozzles as a function of back pressure. In your answer clearly indicate the critical points (pressure ratios) along the pressure ratio axis. b) Determine the required area ratio A part of the expansion of new teaching and research facilities at QMUL, a new two dimensional blow- down supersonic jet facility is going to be designed, manufactured and installed at our Whitehead Aeronautical Laboratory, Figure QB1. The design Mach number for this facility is M₁ = 2.0. A = A₁ A R=287J/kg K A₁ location at which the area ratio ( A₁ c) What should be the supply pressure to the nozzle (P) in order to have a normal shock wave at a Ax =) is 1.5? A Settling Chamber Po To for this design Mach number. d) For part c, what would be the discharge mass flow rate per unit throat area? You may assume P =105 N/m² and To = 300K. atm Convergent-Divergent Nozzle A AX Schematic of a Supersonic Jet…
Suppose a gas flows through a constant insulated path. Parameters of temperature, pressure and mach is 520R, 50psi and 0.45 respectively. A point in the downstream calculated the mach number to equal to 1. Calculate for the temperature and pressure downstream. Methane Gas (k=1.32, R=96.4 ft-lbf/ lbm-R) 1 slug = 32.174 lbm
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4. "A maximum 10-minute mean wind of 124 km/h was registered at North Point anemometer located inside the Victoria Harbour." [Super Typhoon Mangkhut (1822), Tropical Cyclone Reports and Publications, Hong Kong Observatory, 2018] Consider wind flow past a yellow beacon, as shown in Figure Q4(A) when Super Typhoon Mangkhut attacked Hong Kong in 2018. (a) Find the Reynolds numbers at the sphere and at the pole, i.e. Res, Rep. Is the flow turbulent or laminar? (b) From Figure Q4(B), find C, for the sphere and the pole. Calculate the total drag force acting on the yellow beacon. (c) What is the moment at the base of the yellow beacon? (d) State the assumptions. (e) From your understanding of form drag and drag coefficient of various geometry, explain why horse riders lean forward as much as they can when they are racing. D = 300mm h = 2m H-d = 10mm Figure Q4(A) Co a:b Laminar Turbulent Elliptical cylinder 1 1.2 0.3 2 0.6 0.2 4 0.35 0.15 0.25 0.1 Ellipsoid 1 0.47 0.2 2 0.27 0.13 b 4 0.25 0.1…
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QUESTION 3 A 7.62 mm caliber bullet travel in two different medium of gas of helium and nitrogen at constant speed of 1,548 miles per hour. The properties of the gas are given in Table 1. Cp (kJ/kg.K) Cv (kJ/kg.K) Temperature (K) Pressure (kPa) Table 1 Helium 5.192 3.115 300 unknown Nitrogen 1.039 0.746 300 unknown
(please solve a and b)
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