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Consider fully developed two-dimensional Poiseuille flow-flow between two infinite parallel plates separated bydistance h, with both the top plate and bottom plate stationary, and a forced pressure gradient dP/dx driving the flow as illustrated in Fig. P4-82. (dP/dx is constant and negative.) width=
The flow is steady, incompressible, and two-dimensional in the xy-plane. The velocity components are given by width=
where µ is the fluid's viscosity. Is this flow rotational or irrotational? If it is rotational, calculate the vorticity component in the z-direction. Do fluid particles in this flow rotate clockwise or counterclockwise?
In an interview for a manufacturing engineering position, you have been told that a certain product was not performing as intended and that changes needed to be made to a few of the features on the component such as shaft sizes and hole dia..
Calculate the elastic modulus of a composite of 40 vol.% continuous aligned boron ?bers in an aluminum matrix (E = 70 GPa)
a car is to be hoisted by elevator to the fourth floor of a parking garage which is 48 ft above the ground. if the
a parachute was used during part of the landing sequence to deposit the spirit rover on the martian surface. the
a satellite is in a circular orbit 250 mi above the surface of the earth. determine the new perigee and apogee
a vertical wall is at a temperature of 100c. it is situated in a 20c room. if the height of the square wall is 10cm and
An Ideal reheats Rankine cycle. From 1 to 2 we go through Turbine 1. Then 2 to 3 we reheat in a steam generator. Then 3 to 4 we go through Turbine 2. Then from 4 to 5 we go through a Condenser. From 5 to 6 we go through a pump.
a gas is contained in a vertical fractionless- cylinder device. the piston has a mass of 4 kg and cross sectional area
determine the shortest time possible for the rear wheel drive 2 mg truck to achieve a speed of 16 ms with a constant
calculate the attractive force of equilibrium between a pair of k and br- ion that just touch eachother rk 0.133nm and
what two maintained tools will hurt an automotive technicians on the job performance?
a gas initially at p1 1 bar and occupying a volume of 1 liter is compressed within a piston-cylinder assembly to a
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