An Investigation of Flow Structure, Mixing and Chemical Reaction in Combusting Turbulent Flows.
Abstract
The principal objective of this experimental investigation of the relationship between flow structure and chemical reaction in turbulent reacting flows is to examine the spatial structure of the unsteady reaction process as it relates to the unsteady velocity field. The configuration studied is a coflowing, non-premixed jet flame. A small perturbation in the fuel jet velocity, produced acoustically, is used to create a very periodic and controllable flame, suitable for conditional sampling. Initial measurements of the unsteady velocity field in the flame have been obtained using laser anemometry. In addition, flow visualization experiments have been conducted using direct and schlieren photography and Mie scattering from seed particles introduced into the flow. Planar laser-induced fluorescence images of the OH radical, which provide spatially and temporally resolved information on the instantaneous location of the reaction zone, have been obtained. A particle tracking technique to facilitate acquisition of velocity field data is being developed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1986
- Accession Number
- ADA174515
Entities
People
- Brian J. Cantwell
- Craig T. Bowman
Organizations
- Stanford University