Near field behavior of reacting free jets

Numerical simulations of a nonreacting circular jet and both nonreacting and reacting elliptical jets have been completed. Linear stability analysis was used to force the jets at their most amplified frequency. Circular jet simulations showed low levels of coherent structure formation and little oxidizer entrainment. The nonreacting elliptical jet exhibited out-of-plane vortex dynamics and subsequently, structure merging primarily contained within the minor axis region. Chemical reaction hindered out-of-plane vortex motion causing the reacting jet to form primarily planar vortex rings. The overall structure and level of vorticity of the jet was reduced as a result of chemical reaction. Hydroxyl radical production was primarily concentrated within the vortex structures, as expected, but iso-surfaces of hydroxyl number density showed a planar ring shape indicating that the structures were, in fact, planar.

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 Tech

Year dc:date.issued

1995

Author dc:creator

• Blair, Jeffrey Russell

Chair dc:contributor.committeechair

• Brown, Eugene F.

Committee members dc:contributor.committeemember

• Ragab, Saad A.
• Vandsburger, Uri

• chemical reactions

Statement dc:rights

• In Copyright

Licence dc:rights.uri

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

Language dc:language.iso

en

Dc Identifier Other

etd-08222009-040538

OAI identifier oai:identifier

oai:vtechworks.lib.vt.edu:10919/44408