Air flows through a cylindrical combustion chamber of diameter 0.3 m and length 3 m as shown in the figure below. M₁ T₁ P₁ 2 M₂ T₂ P₂ Stations (1) and (2) are the inlet and outlet, respectively. The inlet stagnation temperature is 1,000 K and the inlet stagnation pressure is 1.5 MPa. a) If the skin friction coefficient is Cf = 0.004 (approximately uniform) and no combustion takes place, what will be the inlet Mach number if it is subsonic and the exit Mach number is unity? What are the values of static and stagnation pressure at the exit? b) If combustion takes place and the heat of reaction is 600 kJ/kg of mixture, neglecting frictional effects, and if the inlet Mach number is 0.25, what is the exit Mach number? What are the values of static and stagnation pressure at the exit? The combustion process may be simulated by simple heating with constant specific heat ratio. The fluid may be considered a perfect gas with y = 1.4 and a molecular weight of 29 kg/kmol.

Air flows through a cylindrical combustion chamber of diameter 0.3 m and length 3 m as shown in the figure below. M₁ T₁ P₁ 2 M₂ T₂ P₂ Stations (1) and (2) are the inlet and outlet, respectively. The inlet stagnation temperature is 1,000 K and the inlet stagnation pressure is 1.5 MPa. a) If the skin friction coefficient is Cf = 0.004 (approximately uniform) and no combustion takes place, what will be the inlet Mach number if it is subsonic and the exit Mach number is unity? What are the values of static and stagnation pressure at the exit? b) If combustion takes place and the heat of reaction is 600 kJ/kg of mixture, neglecting frictional effects, and if the inlet Mach number is 0.25, what is the exit Mach number? What are the values of static and stagnation pressure at the exit? The combustion process may be simulated by simple heating with constant specific heat ratio. The fluid may be considered a perfect gas with y = 1.4 and a molecular weight of 29 kg/kmol.

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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