Search Results - "Yoon, Youngbin"

On the effective Lewis number formulations for lean hydrogen/hydrocarbon/air mixtures by Bouvet, Nicolas, Halter, Fabien, Chauveau, Christian, Yoon, Youngbin

“…Decades of research have underlined the undeniable importance of the Lewis number (Le) in the premixed combustion field. From early experimental observations…”
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Impact of Channel Thickness and Doping Concentration for Normally-Off Operation in Sn-Doped β-Ga2O3 Phototransistors by Yoon, Youngbin, Kim, Yongki, Shin, Myunghun

“…We demonstrate a Sn-doped monoclinic gallium oxide (β-Ga2O3)-based deep ultraviolet (DUV) phototransistor with high area coverage and manufacturing efficiency…”
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Effects of convection time on the high harmonic combustion instability in a partially premixed combustor by Yoon, Jisu, Joo, Seongpil, Kim, Jeongjin, Lee, Min Chul, Lee, Jong Guen, Yoon, Youngbin

“…The fuel composition effects of H2/CH4 syngas in a partially premixed model combustor (PP-MC) were examined for the unique phenomenon of combustion instability…”
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Prediction of combustion instability by combining transfer functions in a model rocket combustor by Wang, Yuangang, Sohn, Chae Hoon, Bae, Jinhyun, Yoon, Youngbin

“…The flame transfer function (FTF) and acoustic transfer function (ATF) are estimated experimentally and numerically, respectively, and both are combined to…”
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Biological UV Photoreceptors‐Inspired Sn‐Doped Polycrystalline β‐Ga2O3 Optoelectronic Synaptic Phototransistor for Neuromorphic Computing by Yoon, Youngbin, Kim, Youngki, Hwang, Wan Sik, Shin, Myunghun

“…In this study, the authors fabricate Sn‐doped 100‐nm thick polycrystalline β‐Ga2O3 synaptic field‐effect transistors (FETs) emulating optical and electrical…”
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Experimental Study of the Combustion Efficiency in Multi-Element Gas-Centered Swirl Coaxial Injectors by Woo, Seongphil, Lee, Jungho, Han, Yeoungmin, Yoon, Youngbin

“…The effects of the momentum-flux ratio of propellant upon the combustion efficiency of a gas-centered-swirl-coaxial (GCSC) injector used in the combustion…”
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Solar‐Blind Ultrathin Sn‐Doped Polycrystalline Ga2O3 UV Phototransistor for Normally Off Operation by Yoon, Youngbin, Hwang, Wan Sik, Shin, Myunghun

“…Deep ultraviolet (DUV) photodetectors (PDs) based on ultrawide bandgap β‐Ga2O3 have great potential for aerospace, military, and civilian applications,…”
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Instability prediction of GO2/GCH4 flames in a single recessed coaxial injector using 1D lumped network model by Bae, Jinhyun, Jo, Hyeontaek, Yoon, Youngbin

“…This study analyzes the effect of changes in input parameters on the prediction results in combustion instability. First, applying the centroid location of the…”
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Alpha-phase gallium oxide-based UVC photodetector with high sensitivity and visible blindness by Kim, Sunjae, Yoon, Youngbin, Seo, Dahee, Park, Ji-Hyeon, Jeon, Dae-Woo, Hwang, Wan Sik, Shin, Myunghun

“…This paper describes the heteroepitaxial growth of high-quality alpha-phase gallium oxide (α-Ga2O3) on a sapphire substrate without a buffer layer via the…”
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Experimental Study of Spray and Combustion Characteristics in Gas-Centered Swirl Coaxial Injectors: Influence of Recess Ratio and Gas Swirl by Lee, Jungho, Lee, Ingyu, Woo, Seongphil, Han, Yeoungmin, Yoon, Youngbin

“…The spray and combustion characteristics of a gas-centered swirl coaxial (GCSC) injector used in oxidizer-rich staged combustion cycle engines were analyzed…”
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On the simulation of laminar strained flames in stagnation flows: 1D and 2D approaches versus experiments by Bouvet, Nicolas, Davidenko, Dmitry, Chauveau, Christian, Pillier, Laure, Yoon, Youngbin

“…The present work is essentially devoted to the simulation of a laminar strained flame using two approaches: 2D realistic and 1D simplified. The studied case…”
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Analyzing Combustion Efficiency According to Spray Characteristics of Gas-Centered Swirl-Coaxial Injector by Woo, Seongphil, Lee, Jungho, Lee, Ingyu, Kim, Seunghan, Han, Yeoungmin, Yoon, Youngbin

“…The momentum flux ratio (MFR) significantly affects the mixing characteristics and combustion efficiency of propellants in rocket engine injectors. The spray…”
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Velocity and mass diffusivity effects on the linear and nonlinear phenomena of the Burke-Schumann flame with acoustic excitation by Kim, Taesung, Ahn, Myunggeun, Lim, Daehong, Yoon, Youngbin

“…The dynamics of the Burke-Schumann flame in terms of the Péclet number variation were investigated. The effect of the Péclet number on the flame shape and heat…”
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Effects of unstable flame structure and recirculation zones in a swirl-stabilized dump combustor by Kim, Min-Ki, Yoon, Jisu, Park, Sungsoon, Lee, Min-Chul, Youngbin Yoon

“…There has been increased demand in recent years for low NOx gas turbines to meet stringent emission goals by operating in a lean, premixed combustion mode…”
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High-Aspect Ratio β -Ga₂O₃ Nanorods via Hydrothermal Synthesis by Bae, Hyun Jeong, Yoo, Tae Hee, Yoon, Youngbin, Lee, In Gyu, Kim, Jong Pil, Cho, Byung Jin, Hwang, Wan Sik

“…High-aspect ratio -Ga₂O₃ nanorods consisting of prism-like crystals were formed using gallium oxyhydroxide and ammonia hydroxide via a hydrothermal synthesis…”
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An experimental study of fuel–air mixing section on unstable combustion in a dump combustor by Kim, Min-Ki, Yoon, Jisu, Oh, Jeongseog, Lee, Jongguen, Yoon, Youngbin

“…The main objective of this study is effect of the various fuel–air mixing section geometries on the unstable combustion. For the purpose of observing the…”
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Thermoacoustic Stability Boundaries in the Model Combustion Chamber with a Gas-Centered Swirl Coaxial Injector by Min, Yong Ho, Yoon, Youngbin, Sohn, Chae Hoon

“…The stability of a combustion chamber with a gas-centered swirl coaxial injector is investigated over a wide range of operating conditions in the aspect of…”
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Estimation of Greenhouse Gas Emission from Hanwoo (Korean Native Cattle) Manure Management Systems by Won, Seunggun, Yoon, Youngbin, Hamid, Muhammad Mahboob Ali, Reza, Arif, Shim, Soomin, Kim, Seungsoo, Ra, Changsix, Novianty, Eliza, Park, Kyu-Hyun

“…The agricultural sector is considered one of the major sources of greenhouse gas (GHG) emissions globally. The livestock industry as a significant contributor,…”
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Study on spray patterns of gas-centered swirl coaxial (GCSC) injectors in high pressure conditions by Kim, Jong Gyu, Han, Yeoung Min, Choi, Hwan Seok, Yoon, Youngbin

“…Recess ratio and momentum flux ratio are the key parameters in determining spray characteristics and mixing efficiency of the propellants in rocket injectors…”
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NOx Scaling of Syngas H2/CO Turbulent Non-Premixed Jet Flames by Hwang, Jeongjae, Sohn, Kitae, Bouvet, Nicolas, Yoon, Youngbin

“…NOx emission characteristics and EINOx scaling of hydrogen and H 2 /CO syngas non-premixed jet flames under turbulent condition are investigated. Flame length…”
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