Consider an oblique shock generated at a compression corner with a deflection angle
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- = 1-An oblique shock forms in air at an angle of 0 30°. Before passing through the shock, the air has a temperature of 60°F, a pressure of 10 psia, and is traveling at M = 2.6. elocity components before and after (a) Compute the normal and tangential the shock. HEGE Of and (b) Determine the temperature and pressure after the shock. (c) What is the deflection angle?arrow_forwardQ.3. Airflow at M1 = 2.2 takes a compression turn of 12° and then another turn of angle as shown in the figure. What is the maximum value of 0max for the second shock to be attached? 3 M1 = 2.2 Omax (2 12°arrow_forward2. Determine the back pressure necessary for a normal shock to appear at the exit of a converging-diverging nozzle, as shown in the figure. Assume y = 1.4. Pr = 1.0 MPa T₁ = 800 K рь A exit A throat = 2.0arrow_forward
- 30. A normal shock wave across which the pressure ratio is 1.25 is propagating down a duct containing still air at a pressure of 120 kPa and a temperature of 35°C. This shock wave is reflected off the closed end of the duct. Find the pressure and tem- perature behind the reflected shock wave.arrow_forwardQ.3. Airflow at M1 angle as shown in the figure. What is the maximum value of 0max for the second 2.2 takes a compression turn of 12° and then another turn of shock to be attached? M1 = 2.2 Omax 12°arrow_forwardIn the figure below, M1 = 3.0 and A1 = 2.0ft?. If the fluid is carbon monoxide and the shock occurs at an area of 1.8ft?, what is the minimum area possible for section 4? What is the entropy generation across the shock?arrow_forward
- 1. A normal shock wave with a velocity of 700 m/s moves down a tube into air with static properties of 40 kPa and 320 K. At the end of the tube, a piston is moving at 60 m/s, as shown below. Find the velocity of the reflected wave and the static and stagnation pressures (relative to the tube) behind the reflected wave. Vw= 700 m/s V = 60 m/s P = 40 kPa T= 320 Karrow_forwardA sample of steam is at a pressure of 300 kPa (x=0.75). Solve for its entropy.arrow_forwardThe flow downstream of intersecting shocks of opposite families (compression vs. expansion) adjusts itself such that the total pressures on either side of the slip line are equal and the flow directions match the pressure and velocity match on either side of the slip line the entropy on either side of the slip line is equal the pressures on either side of the slip line are equal and the flow directions matcharrow_forward
- 0/ QI diesel engine has a clearance volume is 0.00025m and bore and stroke of 152.5mm and 200mm, respectively. A charge of air at 100kPa and 20C is taken into the cylinder and compressed adiabatically y=1.4. After combustion at constant pressure the temperature is 1090°C. The expansion which follows is adiabatic. Find a- the temperature and the pressure at the end of compression b- the temperature and pressure after expansion c- the ideal thermal efficiency of the engine (591°Č,4400kPa,227°C,188kPa,0.633)arrow_forwardQ1. A turbojet aircraft flying at speed of 1645 km/h and altitude of 9000 m. A supersonic intake was designed with a conical center body, which generated one oblique shock wave and normal shock wave at the inlet of the aircraft. The deflection of the conical center body is a 10°. Calculate the fluid flow properties and velocity at the aircraft inlet of the intake. Assume a weak solution. Take: R= 0.287 kJ/kg K, and Cp=0.9 kJ/kg K.arrow_forwardA radial flow machine has an impeller with inlet diameter D1= 0.025m, outlet diameter D2=0.077m, inlet blade angle β1=40º, outlet blade angle β2=10º, and N=950 rpm. The angle of attack at the inlet is 90º Neglect the effects of slip conditions and losses, and assuming the radial flow components of the absolute velocity are the same at the inlet and the outlet. Calculate the specific work of the machine in J/kg Is this machine a pump or a turbine?arrow_forward
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