A cast iron pipe with 20 cm diameter and 15 mm wall thickness is carrying water from a reservoir. At the end of the pipe a valve is installed to regulate the flow. The following data are available: • e = 0.15 mm (absolute roughness) , • L = 1500 m (length of pipe), • Q = 40 l/sec (design flow) , • K = 2.1 x 109 N/m2 (bulk modulus of water), • E = 2.1 x 1011 N/m2 (modulus of elasticity of cast iron), • = 0.25 (poisson’s ratio), • = 1000 kg/m3 • T = 150 C. Find , , fc , and fL due to the water hammer produced for the following cases: a) Assuming rigid pipe when tc = 10 seconds, and tc = 1.5 seconds. b) Assuming elastic pipe when tc = 10 seconds, and tc = 1.5 seconds, if: 1. the pipe is free to move longitudinally, 2. the pipe is anchored at both ends and throughout its length, 3. the pipe has expansion joints. c) Draw the time history of the pressure wave for the case (b-3) at: 1. a point just to the left of the valve, and 2. a distance x = 0.35 L from the reservoir. d) Find the total pressure for all the cases in (b-3). sir please solve this problem total head 1s 13 m
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Sir it's very helpful.... Thank u sir.... Do more such short problems for every chapters... It would be more helpful.
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A cast iron pipe with 20 cm diameter and 15 mm wall thickness is carrying water from a reservoir. At the end of the pipe a valve is installed to regulate the flow. The following data are available: • e = 0.15 mm (absolute roughness) , • L = 1500 m (length of pipe), • Q = 40 l/sec (design flow) , • K = 2.1 x 109 N/m2 (bulk modulus of water), • E = 2.1 x 1011 N/m2 (modulus of elasticity of cast iron), • = 0.25 (poisson’s ratio), • = 1000 kg/m3 • T = 150 C.
Find , , fc , and fL due to the water hammer produced for the following cases: a) Assuming rigid pipe when tc = 10 seconds, and tc = 1.5 seconds. b) Assuming elastic pipe when tc = 10 seconds, and tc = 1.5 seconds, if: 1. the pipe is free to move longitudinally, 2. the pipe is anchored at both ends and throughout its length, 3. the pipe has expansion joints. c) Draw the time history of the pressure wave for the case (b-3) at: 1. a point just to the left of the valve, and 2. a distance x = 0.35 L from the reservoir. d) Find the total pressure for all the cases in (b-3). sir please solve this problem total head 1s 13 m
Water hammer sey pani ka temperature badh sakta hai kya??
Great job sir
supop sir
Plz Upload it's second part
sir power transmission through the pipe ka vedio bana dije
Thank u
Koi reply to kro
Sorry for the delay, actually i get lot of comments on daily basis so its very difficult to comment on every comment.
Pavika fluid says Tawi ok sir
The first comment i have not read so any problem in any concept.