Title page for ETD etd-11142012-040143

Type of Document Master's Thesis
Author VandenBerghe, Terrance Michael
URN etd-11142012-040143
Title Heat transfer from in-line and perpendicular arrangements of cylinders in steady and pulsating crossflow
Degree Master of Science
Department Mechanical Engineering
Advisory Committee
Advisor Name Title
Dillaha, Theo A. III Committee Chair
Telionis, Demetri P. Committee Member
Thomas, William C. Committee Member
  • Heat-transfer media
Date of Defense 1985-09-15
Availability restricted

An investigation was conducted to determine the effect of organized flow pulsations on mean heat transfer from a single cylinder, in-line arrangements and perpendicular arrangements of cylinders. Pulsation frequencies of up to twice the natural vortex shedding frequency and zero to peak. amplitudes as high as 36 percent were used. Pulsations were sinusoidal with at least 93 percent of the power at the fundamental frequency. Turbulence levels (Tu=0.5 percent) were not altered by the addition of unsteady flow. Reynolds number ranged from 23,000

Mean heat transfer was found to increase for all three arrangements when organized flow pulsations were applied. For a single cylinder and for perpendicular arrangements, heat transfer increases were found primarily on the back of the cylinder. For in-line arrangements, increases occurred mostly on the front of the cylinder. for the range of pitch ratio most useful to heat exchanger design, in-line arrangements were found to have a higher Nusselt number than perpendicular arrangements.

  Filename       Size       Approximate Download Time (Hours:Minutes:Seconds) 
 28.8 Modem   56K Modem   ISDN (64 Kb)   ISDN (128 Kb)   Higher-speed Access 
[VT] LD5655.V855_1985.V362.pdf 9.06 Mb 00:41:57 00:21:34 00:18:53 00:09:26 00:00:48
[BTD] next to an author's name indicates that all files or directories associated with their ETD are accessible from the Virginia Tech campus network only.

Browse All Available ETDs by ( Author | Department )

dla home
etds imagebase journals news ereserve special collections
virgnia tech home contact dla university libraries

If you have questions or technical problems, please Contact DLA.