Two-color Fluorescence ratio method to measure instantaneous mole fraction and density in compressible mixing field

2012 Fiscal Year Final Research Report

• Project/Area Number: 24656512
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Aerospace engineering
• Research Institution: Tohoku University
• Principal Investigator: MASUYA Goro 東北大学, 大学院・工学研究科, 教授 (20271869)
• Co-Investigator(Kenkyū-buntansha): TAKITA Kenichi 東北大学, 大学院・工学研究科, 准教授 (80282101) ; KOUCHI Toshinori 東北大学, 大学院・工学研究科, 助教 (40415922)
• Project Period (FY): 2012
• Keywords: 推進・エンジン / 圧縮性流れ / レーザー計測 / 超音速混合 / 瞬時モル分率

Research Abstract

Fast mixing of fuel and air is one of the most important technical subjects to realize hypersonic air breathing engines. In order to measure instantaneous distribution of fuel mole fraction, we tried to develop a new technique using laser induced fluorescence signals of two tracer gases. We investigated fluorescent characteristics of several candidate matters and selected acetone and toluene as the tracer gas. We tested fluorescent characteristics of their mixture in air and other gases.