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A film of newtonian liquid folws down the outside surface of avertical cylinder of radius R. the flow is steady, laminar and the thickness of the film is constant.
(a) derive an equation for the velocity profile within thefilm in terms of radial distance r, measured from the cylinderaxis, the film thickness, δ, and the appropriate physicalpropertiesof the liquid. State clearly all assumptions made
(b) Sketch clearly the velocity and shear stress profiles inthe liquid film.
The behaviour of structural materials using comparative statement when they are formed into structural member
A pressurized steel tank has a radius r=0.6m, a wall thickness t=18mm and an internal pressure p of 2.8 MPa.The steel has a modulus of elasticity E of 200 GP and a poissons ratio 0.30.
The subsoil at the site is a thick layer of soft alluvial river silts and sands, the bearing capacity of the silt has been found to be in the region of 80 kN/m2. There is a high ground water table present.
A 10cm long cylindrical rod of steel is elongated to become 12.1cm long by the application of a force of 10kN. 1- What is the ration of initial diameter to final diameter, assuming no net volume change
What is the minimum distance from the stalled car at which the driver could apply the brakes and still stop before hitting it? Assume coefficient of rolling resistance of 0.013.
A 5000 m3/day wastewater treatment plant discharges to a river with a minimum drought flow of 140 m3/min (upstream of outfall) a)What total allowable BOD (kg/day) could be discharged by the plant if the BOD in the river after initial dilution must ..
If the energy loss in the contraction is equal to \(V_1^{2}/2g\) where V1 is the average velocity upstream of the contraction, what is the depth of flow in the constriction. A lined rectangular concrete drainage channel is 10m wide and carries a..
Design a cord (design the constants k and ) so the cord stretches 2.5 times the unstretched length, and the acceleration of the jumper doesn't exceed 3g, and the cord has zero stiffness at the bottom of a 400ft drop.
Carbon dioxide at 30 C and 320 kPa absolute pressure expands isothermally to an absolute pressure of 170 kPa. Determine the final density of the gas.
Include a description of the types of property markers used as well as any problems a surveyor may encounter in this process in your explanation. In addition, discuss the minimum alignment required to establish the centerline
A sightseeing tourist submarine is constructed. The portals along the side can be assumed to be essentially flat, vertical and 1 meter in diameter. Assume a specific weight of seawater of 10,000 N/m3.
Find the minimum flow rate of air and the heat exchanger second-law efficiency.
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