A pipe of 300mm diameter conveying 0.3m3/s has a right angled bend in a horizontal plane. Find the resultant force exerted on the bend if the pressure at the inlet and out let of the bend is 24.525n/cm2 and 23.544n/cm2.
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Area of pipe = 3.14 x (30/2)^2
= 706.5 cm2
Change in pressure, ΔP = 24.525-23.544
=0.981 n/cm2
Hence for right angle band, Force = √2 x ΔP x Area
= 1.414 x 0.981 x 706.5
=980.15 N
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