Laser diagnostic investigation of the structure of steady and driven hydrogen jet diffusion flames

The structure of hydrogen jet diffusion flames has been investigated using coherent anti-Stokes Raman scattering (CARS) and laser-induced fluorescence (LIF) to obtain temperature and nitric oxide (NO) concentrations in steady laminar flames and during the interaction of induced fuel-side vortices with the diffusion flame sheet. The accuracy of the CARS system was evaluated by comparing experimental temperature measurements from H$\sb2$/air flames produced with a Hencken burner with adiabatic flame temperatures found using the NASA Lewis equilibrium code. The experimental temperature and mole fraction profiles are compared with the results of direct numerical simulations (DNS) of the flames. From a comparison of measured and calculated temperatures in steady, laminar, H$\sb2$ jet diffusion flames, thermal diffusion was found to be a significant effect. The experimental and computational results for the steady flames show good agreement when thermal diffusion effects are included in the DNS model.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Mechanical Science and Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2011

Author dc:creator

• Hancock, Robert Dean

Contributors dc:contributor

• Lucht, Robert P.

• Engineering, Mechanical

Statement dc:rights

• Copyright 1996 Hancock, Robert Dean

Language dc:language

eng

Identifier

9780591198867
AAI9712296
(UMI)AAI9712296

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/22412