Chemical Reactions in Turbulent Mixing Flows.
Abstract
Work is continuing in both gas phase and liquid phase turbulent mixing and chemical reactions. In the gas phase shear layer work, our investigations are concentrating on shear layer free stream density ratio effects, finite kinetic rate (Damkohler number) effects, and heat release effects the latter up to a temperature rise in the combustion zone of the order of 1,000K. In jet flows, the development of laser Rayleigh scattering techniques is progressing towards conserved scalar measurements down to diffusion space and time scales. In the liquid phase work, laser induced fluorescence measurements in both shear layer and jet flows have yielded considerable new information on the mixing process and statistics, permitting direct estimates as the probability density function in both cases. Theoretical work in progress is addressing the finite chemical rate problem as well as the diffusion limited shear layer mixing problem. Keywords: Turbulence; Flame; Damkohler number; Shear Layer; Jet Combustion.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 10, 1986
- Accession Number
- ADA174949
Entities
People
- H. W. Liepmann
- J. E. Broadwell
- P. E. Dimotakis
Organizations
- California Institute of Technology