Young-Bin Yoon
Seoul National University · Engineering
About the Lab
Professor Young-Bin Yoon's research lab specializes in experimental combustion science, focusing on turbulent non-premixed jet flames, particularly involving hydrogen and syngas (H₂/CO) fuels. The lab investigates fundamental flame behaviors such as blowout limits, flame stabilization, column breakup dynamics, and NOx emissions under varying flow and combustion conditions. Key research directions include the effects of orifice geometry and injection parameters on liquid jet breakup, flame stability in supersonic coflow environments, and emission scaling laws related to residence time and fuel composition. The lab combines advanced optical diagnostics, such as stroboscopic imaging and flame visualization, to analyze combustion performance and pollutant formation.
Research Overview
Research Output Trend
Figures are computed from collected data and may differ slightly.
Selected Papers
15The effects of orifice internal flow, such as cavitation and hydraulic flip, on the breakup processes of the liquid jet injected perpendicularly into subsonic crossflows were studied experimentally. Orifice diameters, injection pressure differentials, and the shapes (sharp and round) of the orifice entrance were varied to provide several conditions for orifice internal flow. Photographs of liquid flow inside the orifice confirmed the internal flow condition. The liquid column breakup lengths, an
Abstract An extensive set of flame blowout limit curves has been measured for the case of a hydrogen jet flame surrounded by a heated, supersonic, coflowing air stream and some ideas are proposed to explain the observed trends. The stagnation temperature of the Mach 2.2 air stream was varied from 294 K up to the autoignition temperature of 900 K; hydrogen injection velocities were varied up to 1191 m/s. It was found that the flame blowout curves display two distinct stable regions which are boun
Research Areas
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