2134/32627
Jonathan F. Carrotte
Jonathan F.
Carrotte
The mixing characteristics of dilution jets issuing into a confined cross-flow
Loughborough University
2018
untagged
Engineering not elsewhere classified
2018-04-17 13:24:04
Thesis
https://repository.lboro.ac.uk/articles/thesis/The_mixing_characteristics_of_dilution_jets_issuing_into_a_confined_cross-flow/9212273
An experimental investigation has been carried out into the mixing of a row of jets
injected into a confined cross-flow. Measurements were made on a fully annular test facility,
the geometry of the rig simulating that found in the dilution zone of a gas turbine combustion
chamber. A small temperature difference of 44°C between the cross-flow and dilution fluid
allowed the mixing characteristics to be assessed, with hot jets being injected into a relatively
cold cross-flow at a jet to cross-flow momentum flux ratio of 4.0. The investigation
concentrated on differences in the mixing of individual dilution jets, as indicated by the
regularity of the temperature patterns around the cross-flow annulus. Despite the uniform
conditions approaching the dilution holes there were significant differences in the temperature
patterns produced by the dilution jets around the annulus. [Continues.]