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3. Molten Aluminium at a temperature of 750 $$^{\circ}$$C flows through a ceramic pipe in a metal casting industry. Molten Aluminum metal density at this temperature is given as 3700 kg/m$$^{3}$$. The diameter of the ceramic pipe is 170mm and the velocity of molten metal is 0.2 m/s. As it flows through the pipe the temperature of the metal reduces linearly to 600 $$^{\circ}$$C over a distance of 3m. The viscosity of molten metal at the inlet of the cavity is given as approximately 1.2x10$$^{-2}$$ Pa.s. As the metal flows through the pipe, its viscosity increases linearly up to 1.3x10$$^{-2}$$ Pa.s. Determine the Reynolds number at 3 locations along the cavity and draw the variation of Re as a function of distance. [10]

          3. Molten Aluminium at a temperature of 750 $$^{\circ}$$C flows through a ceramic pipe in a metal casting industry. Molten Aluminum metal density at this temperature is given as 3700 kg/m$$^{3}$$. The diameter of the ceramic pipe is 170mm and the velocity of molten metal is 0.2 m/s. As it flows through the pipe the temperature of the metal reduces linearly to 600 $$^{\circ}$$C over a distance of 3m. The viscosity of molten metal at the inlet of the cavity is given as approximately 1.2x10$$^{-2}$$ Pa.s. As the metal flows through the pipe, its viscosity increases linearly up to 1.3x10$$^{-2}$$ Pa.s. Determine the Reynolds number at 3 locations along the cavity and draw the variation of Re as a function of distance.
[10]

3 molten aluminium at a temperature of 750 circc flows through a ceramic pipe in a metal casting industry molten aluminum metal density at this temperature is given as 3700 kgm3 the diameter 24048

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