Diagnostics of Strongly Turbulent Premixed Flames Based on Direct Numerical Simulations
Abstract
The objective of the proposed research is to understand the structure and propagation mechanisms of strongly turbulent premixed flames relevant to high speed propulsion applications. The objective is achieved through computational diagnostics of limit flame phenomena, including local ignition and extinction, and other critical flame features, such as premixed reaction fronts and the associated propagation speed, by using the chemical explosive mode analysis (CEMA) on turbulent flames simulated with direct numerical simulations (DNS). Progress has been made in the following tasks during the reporting period (no cost extension): 1) Developed and validated the deeply reduced kinetic model for JP10 specific to extinction problems based on HyChem, 2) Systematic generation and solution of reactor network models (RNM) based on computational fluid dynamics (CFD) results, and 3) Investigation of chemical kinetic uncertainties propagating in turbulent flames based on 2-DDNS.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 31, 2019
- Accession Number
- AD1096513
Entities
People
- Hemanth Kolla
- Jacqueline H. Chen
- Tianfeng Lu
- Xinyu Zhao
Organizations
- University of Connecticut