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Consider a supersonic wind tunnel with test section Mach number of 2 and fixed geometry diffuser designed to operate with minimum stagnation pressure losses (smallest diffuser area). Find the stagnation pressure loss: a. when the shock stands downstream of the diffuser where the duct area is 5% larger than at the diffuser throat. b. when the diffuser is replaced by a piece of straight pipe.
Determine the turbine inlet temperature, the cycle thermal efficiency, and the back-work ratio of this cycle.
A cylindrical specimen of this alloy 24 mm in diameter and 186 mm long is to be pulled in tension. Calculate the force necessary to cause a 0.0119 mm reduction in diameter. Assume a value of 0.33 for Poisson's ratio.
consider uniform potential flow past an ellipse with thickness ratio t. use an appropriate joukowski transformation to
The piston is now unlocked so it is free to move, and it conducts heat so the air comes to a uniform temperature . Find the mass in both A and B, and the final T and P.
Determine the resulting stress equations for σx, σy and τxy given the Airy's stress function ? = a1x^4 + a2(x^3)y + a3(x^2)(y^2) + a4x(y^3) + a5(y^4), where ai are constants. Also determine, if any, the restrictions between constants.
Two collars C and D move along the vertical rod as shown. Knowing that the velocity of collar C is 50 in/s downward, find the instant centers of all three bars, the angular velocity of AB, the velocity of collard D.
Mainframe computing used to be the only way to manage enterprise data. Then personal computers changed the data management scene. How do these two computing styles differ, and how did shift to PC-based computing evolve.
Show that the spacing between (111) planes in the FCC structure is the same as the spacing (002) planes in the HCP structure. Imagine the atoms to behave as hard spheres.
If an identical spring is cut so that one part is one-fourth and the other part three-fourths of the original length, and the mass m is connected to the two parts, what would be the natural period of the system?
The system on site is a pressure sand filter, with a service curve. The filter is backwashed using the feed pump, at a higher flow rate, shown as backwash curve. What is the speed of the pump to achieve the service and backwash flow rates ?
Cantilever Beam with maximum tensile strength. A cantilever beam is to be made using a symmetrical I section beam. The cantilever is to carry a load of 40kN at a distance 2.5m from the fixed end. The situation allows for a depth of I beam to be no..
(a) derive an expression for the net work transfer for the cycle. Prove that for a Stirling Cycle, the net work transfer is always from the system to the surroundings.
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