Water flows in a pipe of diameter 0.5 m. the dianeter of the to 1,0 m. a u-tube manometer is of the enlargement with joining ercury levels 5 mm. determine the flow rate as well as the pressure 3 water pipe suddenly enlarges connected to either side pipes which contain water. the difference in m head loss as a result of the enlargement.

Q = 0.943

= 0.6605 m

Explanation:

Given :

Diameter, d₁ = 0.5 m

Area, A₁ =

             = 0.19625

Enlargement diameter, d₂ = 1 m

Enlargement Area, A₂ =

             = 0.785

Manometric difference, h = 35 mm

                                          =35 X m

From manometer , we get

                                                =

                                                = -0.441

Now from newtons first law,

-0.441 =

-0.441 =

Therefore. Q = 0.943

Now V₁ =

            =

            = 4.80 m/s

       V₂ =  

            =

            = 1.20 m/s

Therefore, heat loss due to sudden enlargement is given by

               = 0.6605 m

energy can cross the boundaries of a closed system in the form of heat and mass

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