Novel Diagnostics for the Study of Mixing and Chemical Reactions in Turbulent Liquid Phase Flows.
Abstract
Significant advances were made in the technology of molecular tagging diagnostics. Taking advantage of recently engineered water-soluble molecular complexes with long-lived excited states (i.e. phosphorescence), techniques were developed for non-intrusive, multi-point, measurements of various fluid dynamical quantities. As a result of two novel innovations, the single-point accuracy of velocity measurements was improved by about a factor of 5, while the density of measurement points in a plane was increased by an order of magnitude. It was demonstrated that the same chemical compound used for velocimetry could be utilized to molecularly tag either a chemical reaction interface between two streams, or a passive scalar (non-reacting) mixing region, and monitor the Lagrangian evolution of the tagged regions. This development offers the capability for simultaneous velocity and scalar mixing measurements. The technique has now reached a sufficient level of maturity that it can be applied to the study of various flows. jg p.1
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 25, 1995
- Accession Number
- ADA299690
Entities
People
- Mahoochehr M. Koochesfahani
Organizations
- Michigan State University