Heat transfer from a circular cylinder in a pulsating crossflow

The effects of organized well-defined harmonic disturbances in the mean crossflow on heat transfer from a circular cylinder were experimentally determined. Local, time-averaged heat transfer data at constant wall temperature is reported for Reynolds numbers between 3 x 10⁴ and 9 x 10⁴. Pulsation amplitudes were generally small (<10 per cent) with frequencies up to and beyond the frequency of natural shedding. Small increases in heat transfer all around the cylinder are found in pulsating flow. point. More significant increases occur near the separation point. A convection calibration for the circular foil heat flux gage used in the heat transfer experiments is included. The convection calibration shows a non-linear gage response for a 'hot' gage in a convection environment. This is in contrast to the linear calibration curve produced by the standard 'cold' gage radiation technique.

Name thesis:degree_name

M. S.

Level thesis:degree_level

masters

Discipline thesis:degree_discipline

Mechanical Engineering

Department dc:contributor.department

Mechanical Engineering

Grantor dc:publisher

Virginia Polytechnic Institute and State University

Year dc:date.issued

1983

Author dc:creator

• Borell, George J.

Statement dc:rights

• In Copyright

Licence dc:rights.uri

• http://rightsstatements.org/vocab/InC/1.0/

Language dc:language.iso

en

Handle dc:identifier.uri

https://hdl.handle.net/10919/118896

OAI identifier oai:identifier

oai:vtechworks.lib.vt.edu:10919/118896