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- Evaluate the dimensionless groups hcD/k,UD/, and cp/k for water, n-butyl alcohol, mercury, hydrogen, air, and saturated steam at a temperature of 100C. Let D=1m,U=1m/sec, and hc=1W/m2K.(b) The kinematic viscosity of a fluid used for model is one third of the kinematic viscosity of the fluid used for prototype. During testing of the model, if viscosity and gravity forces are predominant, find the scale ration, velocity ratio and discharge rationThe sketch shows an oil manometer that is connected between two pipes which transport water. The density of water can be taken as 998kg/m3, the specific gravity of glycerol is 0.76 and atmospheric pressure is 100 kPa. The respective dimensions (as shown on the sketch) are given below: h1 = 0.17 m h2 = 350 mm h3 =15cm. From the given data, calculate the pressure difference between the two pipes.
- 17. The moment of viscous liquid bctween two cylinder depend on angular velocity o of internal cylinder, cylinders diameters d, D., absolute viscosity u. Find the dimensionless parameters and obtain the similarity of dimensionless parameters. M= f(d.D.Global warming will produce rising sea levels partly due to melting ice caps and partly due to the expansion of water as average ocean temperatures rise. To get some idea of the size of this effect, calculate the change in length, Ah (in mm), of a column of water 1.5 km high for a temperature increase of 1.2 °C.Assume the column is not free to expand sideways. As a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to the surface can expand sideways onto land, and only to a limited degree. As another approximation, neglect the fact that ocean warming is not uniform with depth. Properties of water: 3 = 210 x 10 /C. c= 4186 J/kg - °C, L; = 334 kJ/kg, Le = 2256 kJ/kg Enter you answer below (to the nearest mm): Ah (in mm) = Type your answer.Convert a viscosity of 61 g/(cm s) to lbf/(hr ft2). Use dimensional analysis in cancellation of units. Final answer in two decimal. Please show your complete solution and write clearly. Thank you.
- 7.At ground level the atmospheric pressure is 101.325 kPaat 15 °C.Calculate the pressure at a point 6500 m above the ground, assuming (a) no density variation, (b) an isothermal variation ofdensity with pressure. Fluid MechanicsIn Falling ball Viscometer, the density of the ball is p=7746.8 kg/m and its radius is 4 mm, the ball is travelling through water, what will be the drag force (N)?A block of wood (SG = 0.6) floats in fluid X such that 75 percent of its volume is submerged in fluid X. Estimate the vacuum pressure (in Pa) of the air in the tank. (Type only the magnitude). ... Air = 0 kPa gage Air pressure? Wood 40 cm 70 cm Fluid X
- Z= 25. Shown in fig. below, fluid A is oil (S.G. 0.82) and fluid B is salt solution (S.G. 1.10), = 21.5 in, y = 7.0 in. The local acceleration of gravity and barometric pressure and both standard. Compute the pressure at point x if the specific gravities are relative to 62.4 lbm/ft³ water. 10 Fluid A open Fluid BAn oil drum of 500 mm diameter and 1.5 long is to be rolled across a footstep of 100 mm high. Find the minimum push required at the top of the drum. Take density of the oil as 1 kg/litre. Neglect weight of the drum. [Ans. 1444.5 N]An object was submerged in water. Given the following parameters, calculate the buoyant force and weight of the object: Volume Displaced Vdisp = 300 mL