𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Temperature and density in a hydrogenair flame from Rayleigh scattering

✍ Scribed by R.W. Pitz; R. Cattolica; F. Robben; L. Talbot

Publisher
Elsevier Science
Year
1976
Tongue
English
Weight
547 KB
Volume
27
Category
Article
ISSN
0010-2180

No coin nor oath required. For personal study only.

✦ Synopsis

A technique has been developed for obtaining spatially resolved measurements of temperature and density under combustion conditions. The spectral structure of Rayleigh scattered laser light is determined using a Fabry-Perot interferometer. Spectra in the post-combustion zone exhibit simple Doppler broadening with a Gaussian line profile: however, spectra in the higher density, precombustion zone have appreciable Brillouin components. Radial and axial surveys of temperature and intensity in the premixed hydrogen-air flame issuing from a 3.2 mm diameter welding torch tip are obtained. Measured temperatures in the post-combustion zone are in agreement with the adiabatic flame temperature.

📜 SIMILAR VOLUMES

Single-shot temperature and mixture frac
Single-shot temperature and mixture fraction profiles by Rayleigh scattering in the development zone of a turbulent diffusion flame
✍ D. Stepowski; G. Cabot 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 862 KB

Single-shot laser Rayleigh scattering profiles have been obtained in the development zone of a turbulent diffusion flame of a diluted hydrogen jet issuing into a coflowing air stream. The Rayleigh scattering cross section that depends on the local molecular composition is calculated at each laser sh