hw5-010 - D E P A R T M E N T O F C H E M IC A L E N G IN E...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
DEPARTMENT OF CHEMICAL ENGINEERING UNIVERSITY OF CALIFORNIA, SANTA BARBARA ChE120B Introduction to Heat Transfer Processes Winter 2010 Out Wednesday, February 24 Due: Wednesday, March 3, 2010 1. A plane wall is initially at temperature T 0 . At time t=0, t he temperature on the left side of the wall is changed and then held constant at a temperature T 1 . Determine the time evolution of the temperature recognizing that there is a steady state solution that you are quite familiar with. 2. (from last quarter) Air at 72 F and 1 atm (v = 0.16 cm 2 /sec) flows past a flat plate with a uniform free stream velocity of 3 ft/sec. What is the boundary layer thickness at a point 5 inches from the leading edge? If the plate is 8 ft long and 3 ft wide, what is the drag force on one side of the plate? 3. Sometimes viscous dissipation of heat is important. Consider two large plates separated by a 2 mm thick oil film. The upper plate moves with a constant velocity of 12 m/s, while the lower plate is stationary. Both plates are maintained at 20 C. Take the oil to have k = .145 W/m-K and
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 2

hw5-010 - D E P A R T M E N T O F C H E M IC A L E N G IN E...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online