u=1.5m/s, kinematic viscosity v=0.89×10-6 m 2 /s when water temperature is 25℃ Judge flow regime in...
d. A cireular pipe ho he ater 50man f water v1.5m/s, kinematie viseosity 0.89x10 *m is when water temperature is 25'c. Judge flow regime in the pipe. (10 points)
2. When gasoline with a kinematic viscosity of s x 10-7 m'l's flows in a 200-mm-diameter smooth pipe the friction head loss is 0.43 m per 100 m. Find the flow rate.
A hydraulic oil with a kinematic viscosity of 4 x 10-4 m2/s and specific gravity of 0.89 flows in a 22 mm diameter pipe at 3 m/s. Determine the head loss (in bar) due to friction for a 95 m long pipe.?
use table A-15 kinematic viscosity 6. Consider a 2-m long smooth cylindrical pipe of 5 cm internal diameter, that is maintained at a constant surface temperature. Air flows through the tube at 0.5 m/s. Air enters the pipe at 20°C and leaves it at 60°C. Determine: (a) Is the flow laminar or turbulent? (b) Is the flow fully developed? (c) What Nu number correlation will you use to find h? Find Nu. (d) Find the convection heat transfer coefficient (h)...
Water, with density of 1000 kg/m3 and kinematic viscosity of 1.0 x 10- m2/s, is pumped through a total length of 60 m of pipe from a lower reservoir to a higher reservoir. The inner diameter of the pipe is 30 cm. Both reservoirs are open to the atmosphere, and the water surface of the higher reservoir is 10 m above that of the lower reservoir. The entrance from the lower reservoir to the pipe is sharp-edged, and along the...
3 x 10-6 m2/s, estimate the i) (1 pes.) The kinematic viscosity Reynolds number for the flow around a particle of size on the order of 1 μ m (= 10° m), assuming the velocity of the flow is on the order of 1 cm/s. Would "creeping flow" be a good approximation to the flow? Recall Re pULIp. し μ/ρ of a fluid is about
2(a) A luid with kinematic viscosity 1.45x10* m'ls enters a smooth pipe of internal diameter d- 25 mm and length L-5 m. i) Sketch the velocity profile across a diameter of the pipe at 0, 1, 2, 3 and 4 m from the pipe entrance for U- 1 m/s (you may assume that the pipe has a bell mouth entrance for smooth unseparated flow entry). Also sketch a graph of the centre-line velocity Uma against the distance x measured from...
The density of water is p = 1000 kg and the viscosity is u = 2 kg. Consider diameter of pipe is lm and the velocity of the flow is 1m/s. Compute the Reynolds number. m3 Compute the friction factor, if Reynolds number in pipe flow is 1000.
Question 3 [20 marks] Water (density p1000 kg/m2; dynamic viscosity 0.001 Pa-s) flows steadily through a horizontal, straight pipe with circular cross section of diameter D=0.2 m. The volumetric flow rate is 0.01 m°/s. Argue that this is turbulent flow. [4 marksl а. Pressure drop in the pipe is due to friction. The pressure drop per unit length can be written as Др 4f L with U the average velocity in the pipe and fthe friction factor. Given the pipe...
Consider an oil of density p 800 kg/m3, viscosity u 0.01 Pa.s (10 times the viscosity of water), heat capacity of Cp 2 k]/(kg K) and thermal conductivity of Koll -0.15 W/(mk). This oil flows at mass flowrate of 30 kg/minute through a copper pipe of d- 2 cm inner diameter, with wall thickness of t-1 mm. At the relevant conditions, copper has thermal conductivity of ke 400 W/(m.K). The copper pipe loses heat to the surroundings of Tsurr 20°C...