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energy to the air, then humidified by sat steam (at 110oC) with a rate of 0.33kg/min, find
the final air dry and wet bulb temperatures for unit mass rate.
Consider a discrete fluid-solid mechanical system (for instance a wing profile with two degrees of freedom). Solutions of the form V
⃗
e
λt
are looked for, V
⃗
being a two components vector. On the figure below the real and imaginary parts of λ
are plotted as function of the Cauchy number. Give an estimate of the critical value of the Cauchy number at which an instability occurs.
A compressor of 25 kg is mounted on isolator as shown in the figure.
The isolator is idealized by a spring and a damper of damping ration 𝜁= 0.3 . it is found that the compressor suffers from vibration due to unbalance of 0.001 sin50t. also, it is found that all the maximum impressed force is transmitted to the floor. What will be the TR and the maximum Ft to the floor when the excitation force becomes 0.005sinwt ?
Linear plate elements and linear solid elements can easily be used in the same mode true or false
Q (litres/s): 12 28 45 63 95 120 160 180
N (rps): 5 10 15 20 30 40 60 80
Plot the dependence of propeller coefficient against propeller Reynolds number. A geometrically similar propeller with diameter 100 mm was installed in a 300 mm-diameter pipe conveying oil with density 800 kg/m3 and dynamic viscosity 0.007 Ns/m2 . Estimate the discharge in the oil pipe for measured propeller speeds of 40 rps and 90 rps.
#340153 on Dec 2023