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Source and sink in uniform flow
Using the software 2DFlowPlus, investigate the flow pattern resulting by addition of one source (strength +5) at (X = +3, Y = 0) and one sink (strength -5) at (X = -3, Y = 0) in an uniform flow (V∞ = 1). Plot the pressure and velocity field. Where are located the stagnation points?
The water is pumped out of the aquifer at a rate of 2000 gpd, treat it with activated carbon and then put it back into the aquifer. At the flow rate how long until al the PCE is removed, assume carbon removed 100% of the PCE (ans. 54 days)
A developer has requested permission to build a large retail store at a location adjacent to the intersection of an undivided four-lane major road and a two-lane minor road. Traffic on the minor road is controlled by a stop sign.
What type of exercise takes place in a classroom setting arranged to look like an emergency operations center or in an actual emergency operations center, and involves simulation using written, telephone, and radio messaging.
A cutting 9 m deep is to be excavated in saturated clay of unit weight 19 kN/m3. The design shear strength parameters are cu = 30 kN/ m2 and fu = 0. A hard stratum underlies the clay at a depth of 11 m below ground level.
question 1. the variation of 2sdt q with q of a basin is given by q 0.00152sdt q2nbsp 0.1952sdt q - 0.3833. the
Find the discharge with an 80% risk of being equaled or exceeded at least once in the next 10 years. (Hint: first find the annual probability of exceedance for this discharge.)
When a channel of triangular cross section was new, a flowrate of Q caused the water to reach L = 2 m up the side of the channel. After considerable use
a 10.0 inch long 10-guage wire of yellow brass (E=105 GPa) is subjected to an axial tensile force of 400 lbs. Find the normal sress and deformation in the wire. A 10-guage wire has a diameter of 2.588 mm.
The difference in water level is 60ft. Determine the size of pipe for a water temperature of 60 degrees Fahrenheit. Apply The Darcy-Weisbach equation.
During a hot air balloon race one specific balloon, initially at rest, accelerate vertically upward at a constant rate of a=4.5 ft/s^2 when t0=42 s from the ground the surface, which is at an altitude above mean sea level of s0=3750 ft.
The specimens cured at 150oC had an average shear strength of 620 psi, with a standard deviation of 20 psi. Those cured at 130oC had an average shear strength of 750 psi, with a standard deviation of 30 psi.
Assuming the flow through the nozzle to be isentropic, determine the exit area and the exit Mach number.
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