Chemically Reacting Turbulent Flow.
Abstract
This report summarizes the results on chemically reacting turbulent flow. The development of new diagnostics for variable density flows are described. These include Rayleigh light scattering for real-time, spatially-resolved concentration measurements, combined Rayleigh light scattering and hot wire anemometry for simultaneous concentration and velocity measurements, and the development of a digital line camera which has allowed the concentration measurement to be made along a line. A study of heat transfer from heated cylinders is discussed which has generated a much improved correlation of experimental results. Shadowgraph visualization studies and centerline concentration measurements are described for variable density, axisymmetric turbulent jets covering jet to coflow density ratios of 0.14 to 37. These studies have also included a limited investigation of Reynolds number effects. The observed dependence of the mixing behavior on the density ratio and Re have led us to make new hypotheses are shown to lead to qualitative predictions for the turbulent mixing which are in agreement with experimental findings.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 06, 1985
- Accession Number
- ADA187760
Entities
People
- Takashi Kashiwagi
- William M. Pitts
Organizations
- National Institute of Standards and Technology