Vaporization, Mixing, and Ignition Dynamics in High-Pressure Evaporating and Reacting Sprays
Abstract
The objective of the proposed research is to investigate vaporization, gas-phase mixing, and ignition dynamics in evaporating (non-reacting) and reacting sprays at high pressures and high temperatures. State-of-the-art optical and laser-based diagnostics are targeted for (i) characterizing the effects of injection (pressure, mass,and duration) and operating conditions (ambient pressure and temperature) on gas-phase mixing topology, (ii)examining CH2O (low-temperature species) concentration fields, the correlation with the liquid spray and gas phase mixing topology, and the dependence on injection and operating conditions, and (iii) providing new information regarding the role of low-temperature (first-stage) ignition and mixing dynamics on the onset high temperature ignition. A major target is the measurement of a series of conditional statistics that detail the most probable mixture composition for facilitating ignition and the correlation between low-temperature species such asCH2O and the onset of high-temperature, second-stage ignition. A research objective that manifested itself afterthe project initiation was the construction and implementation of a new, high-pressure, high-temperature spray and ignition facility that would greatly benefit the current and future research programs. Furthermore, additional measurements in an atmospheric ignition experiment were added to elucidate the fundamental roles of mixing andfluid turbulence on ignition kernel formation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 08, 2022
- Accession Number
- AD1192500
Entities
People
- Jeffrey A Sutton
Organizations
- Ohio State University