Mechanical and Materials Engineering Homework Solutions

FLUID MECHANICS #2

An Airbag is inflated by approximately 0.15 kg of gas in 50 ms. If the temperature change is about 200 degree C, calculate the average power associated with this deployment.

Potential flow theory

(See attached files for full problem description)

Express a pressure of 50 kPa in (a) millimeters of mercury, (b) meters of water, (c) meters of acetylence tetrabromide, S=2.94.

Express a pressure of 50 kPa in: (a) millimeters of mercury (b) meters of water (c) meters of acetylence tetrabromide, S=2.94.

A standpipe 30 ft in diameter and 40 ft high is filled with water.

A standpipe 30 ft in diameter and 40 ft high is filled with water. How much potential energy in this water. See attached file for full problem description.

Fluid Mechanic # 7

Find the flow (per foot in the Z direction) through each side of the square with the corners at(0,0), (0,1), (1,1), (1,0), due to: V = (16y-12x)i + (12y - 9x) j and how that continuity is satisfied. The answer in the book is: YES (please show detail) Thank you, Lisa. ISBN: 0070625379

FLUID MECHANICS # 15

(See attached file for full problem description with diagram) --- Problem #15 - Calculate the value of H in figure below for 125 L/s water in 15 degreeC through the commercial steel pipe. Include minor losses. ---

Francis turbine

(See attached file for full problem description)

Flow around a circular cylinder

The maximum flow past a circular cylinder is 2 X the Up stream velocity. The max velocity occurs at the center line of the top of the cylinder. Assume std pressure and Temp for air and irrotational flow. What is the difference between the lowest and highest pressures? The cylinder is suspended in a 40/m wind.

Solutions of the Newtonian Viscous-flow

Solutions of the Newtonian Viscous-flow Eqns- 3-9. Given laminar fully developed flow in an elliptical duct... (see attached) 3-10. Air at 20C and approximately 1 atm... (see attached) Prescribed text: Viscous Fluid Flow : 1991: Mcgraw-Hill: By Frank White

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