Skip to Main content Skip to Navigation
Theses

Expérimental study of lean aeronautical ignition : impact of critical parameters on the mechanisms acting along the different ignition phases

Abstract : Jet engine certification undergoes more and more stringent controls that impose a strong reduction of pollutant emissions. As a response, designs move towards lean combustion, which raises difficulties relative to combustion stability and re-ignition capabilities in high altitude. The use of liquid fuels in real chambers introduces new variables into the ignition process, which involves complex simultaneous multi-physical interactions. The present experimental investigation addresses different phases of aeronautical ignition in two different confined, swirled, spray jet chambers. A single-injector facility is used to study the initial flame kernel development and interaction with the flow leading to successful ignition or misfire, following different mechanisms. A multi-injector facility enables the investigation of flame propagation between injectors, which is also governed by the local flow. Here, inter-injector distances are varied and fuels of different volatilities are tested.
Document type :
Theses
Complete list of metadatas

Cited literature [151 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-01938253
Contributor : Abes Star :  Contact
Submitted on : Wednesday, November 28, 2018 - 3:14:13 PM
Last modification on : Thursday, November 28, 2019 - 3:53:14 AM

File

MARRERO.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-01938253, version 1

Citation

Javier Marrero Santiago. Expérimental study of lean aeronautical ignition : impact of critical parameters on the mechanisms acting along the different ignition phases. Other. Normandie Université, 2018. English. ⟨NNT : 2018NORMIR03⟩. ⟨tel-01938253⟩

Share

Metrics

Record views

185

Files downloads

116