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zakf355

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**fluid mechanics question help!?**

## Homework Statement

Air flows through a horizontal duct of dimensions 300 x 300 mm with a velocity of 15 m/s. At position (1) in the duct a water guage (water manometer) registers a hieght of 215mm. The duct bends downwards and reduces in size to 240 x 240 mm, dropping a distance of 12 m to position (2). the specific volume of the air is 0.85 m^3 / kg and this may be taken as constant. Determine:

a) volume flow rate and mass flow rate.

b) pressure at (1) in kPa

c) The Velocity at (2)

d) pressure at (2) in kPa (guage) and mm water guage if losses are neglected.

e) pressure at (2) in kPa (guage and mm water guage if losses are 10% of the total head at (1) and elevation (2) is used as datum

## Homework Equations

Bernoulli's Equation

mass flow rate = v A relative density

## The Attempt at a Solution

im struggling guys

## Homework Statement

## Homework Equations

## The Attempt at a Solution

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