An experimental investigation of instability in turbulent-flow freezing

An experimental investigation of the solidification of a fully developed turbulent internal flow due to external cooling of the tube wall was conducted. A region of unstable freezing behavior was located and bounded in terms of initial Reynolds number and a nondimensional temperature parameter for the given system. This region was observed over the span of Reynolds numbers from 4500 to 10150 and was defined to exist at values of the pertinent parameters between those which cause a smooth steady-state response and those which cause a smooth response resulting in complete tube blockage. An increase in upstream flow resistance was found to make the region of instability less sensitive to a change in coolant temperature at constant initial Reynolds number. System blockage was predicted in terms of steady-state freezing data at constant nondimensional temperature and various initial Reynolds numbers.

Name thesis:degree_name

Master of Science

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

1982

Author dc:creator

• Curtiss, Kevin Randall

Statement dc:rights

• In Copyright

Licence dc:rights.uri

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

Language dc:language.iso

en_US

Handle dc:identifier.uri

http://hdl.handle.net/10919/87144

OAI identifier oai:identifier

oai:vtechworks.lib.vt.edu:10919/87144