Technique for three-dimensional measurements of the time development of turbulent flames
- Department of Mechanical Engineering and Center for Laser Diagnostics, Yale University, New Haven, Connecticut 06520 (USA)
A three-dimensional imaging technique has been developed that permits the investigation of the time development of a scalar in turbulent reacting flows. An aerosol-seeded premixed flame was illuminated by four closely spaced parallel laser sheets of different wavelength. Lorenz--Mie scattering from the four illumination sheets was imaged onto an intensified two-dimensional charge-coupled-device array. Bandpass filters and a multi-image optical component in the collection optics allowed individual sheets to be imaged onto different areas of the charge-coupled-device array. A double-pulsed Nd:YAG laser was used in conjunction with a rotating mirror in the collection optics to enable instantaneous three-dimensional images to be obtained at two times separated by 100 s.
- OSTI ID:
- 5555312
- Journal Information:
- Optics Letters; (USA), Journal Name: Optics Letters; (USA) Vol. 16:12; ISSN OPLED; ISSN 0146-9592
- Country of Publication:
- United States
- Language:
- English
Similar Records
Flow structure and combustion in nonpremixed turbulent bluff-body stabilized flames
Visualization of turbulent flame fronts with planar laser-induced fluroescence