Search Results - "Dong-Jin Cha"

Signal-processing-based characterization of thermoacoustic coupling in a lean premix swirling gas turbine combustor by Song, Won Joon, Cha, Dong-Jin

“…This study investigates the strength of the thermoacoustic feedback coupling between the acoustic field and the thermal field in a combustor with the coherence…”
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Biparametric assessment of the combustion stability in an industrial gas turbine combustor by Song, Won Joon, Cha, Dong-Jin

“…Here we propose a generalized procedure for a two-parameter assessment of the Combustion stability (CS) of industrial gas turbines. In evaluating the CS, this…”
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Frost formation on a cold surface under turbulent flow by Yang, Dong-Keun, Lee, Kwan-Soo, Cha, Dong-Jin

“…This study presents a mathematical model to predict the frosting behavior on a cold surface under turbulent flow. The model consists of the standard κ– ε model…”
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Temporal kurtosis of dynamic pressure signal as a quantitative measure of combustion instability by Song, Won Joon, Cha, Dong-Jin

“…•Kurtosis of dynamic pressure signal is used to quantify the combustion stability.•Temporal kurtosis serves as a real-time indicator of varying combustion…”
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낙동강 상수원수 중 이취물질과 방선균 및 조류의 상관관계 연구 by 박홍기(Hong Gi Park), 정은영(Eun Young Jung), 차동진(Dong Jin Cha), 최진택(Jin Taek Choi), 손희종(Hee Jong Son), 김정아(Jeong A Kim), 김경아(Gyeong A Kim), 윤철종(Churl Jong Yun)

“…We have investigated the correlation between odorous compounds and actinomycetes in drinking water source of Nakdong River in 2011. Geosmin was mainly detected…”
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Calibration of Raman spectroscopy signals for measurements of methane-air tubular flames by Cha, Dong Jin

“…This paper addresses a challenging approach to calibrating visible Raman spectroscopy data when investigating laminar methane-air tubular flames, which…”
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Analysis of the combustion oscillation in a silo-type gas turbine combustor and its suppression by Seo, Seok Bin, Ahn, Dal Hong, Park, Jong Ho, Cha, Dong Jin

“…The characteristics of combustion oscillation of a silo-type 79.5 MW gas turbine combustor in commercial operation and its suppression have been investigated…”
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A numerical study of flow distribution effect on a parallel flow heat exchanger by Chung, Kilyoan, Lee, Kwan-soo, Cha, Dong-jin

“…The effect of flow distribution on thermal and flow performance of a parallel How heat exchanger has been numerically investigated. The flow distribution has…”
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Analysis of the combustion instability of a model gas turbine combustor by the transfer matrix method by Cha, Dong Jin, Kim, Jay H., Joo, Yong Jin

“…Combustion instability is a major issue in design of gas turbine combustors for efficient operation with low emissions. A transfer matrix-based approach is…”
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Finite element analysis of self-excited instabilities in a lean premixed gas turbine combustor by Kim, Seong-Ku, Kim, Daesik, Cha, Dong Jin

“…•This study has successfully developed an in-house Helmholtz solver by adopting the FEM on a mixed element mesh and the shift-invert method for solving the…”
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In-situ measurement of reflection coefficient and its application to predicting combustion instability in a gas turbine combustor by Song, Won Joon, Youn, Gyu Seong, Cha, Dong Jin

“…Here, a procedure that uses in-situ data recorded by two microphones placed inside an operating gas turbine combustor to determine the reflection coefficient…”
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Numerical investigation on combustion instability modeling in a lean premixed gas turbine combustor combining finite element analysis with local flame transfer function by Pyo, Yeongmin, Kim, Daesik, Kim, Seong-Ku, Cha, Dong Jin

“…The present work suggests a numerical approach using an FEM (finite element method) code for the eigenvalue calculation of the thermoacoustic combustion…”
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Real time intelligent control of a three-fingers hand system by Haeng-Bong Shin, Xuan-Thu Le, Se-Bong Oh, Dong-Jin Cha, Myeong-Ho Kang, Sung-Hyun Han

“…We present an experimental performance for the validation of a robotic hand gripper for industrial applications. In particular this researches focus on the…”
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A study on robust feedback control for dual-arm robot system by Woo-Song Lee, Se-Bong Oh, Dong-Jin Cha, Jong-Boong Lee, Sung-Hyun Han, Dong-Joo Park

“…This paper presents how it is effective to use many features for improving the speed and the accuracy of the visual servo systems. Some rank conditions, which…”
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A Study on the Correlation between Odorous Compounds, Actinomycetes and Algae in Drinking Water Source of Nakdong River by Kim, Jeong-A, Kim, Gyeong-A, Yun, Churl-Jong, Park, Hong-Gi, Jung, Eun-Young, Cha, Dong-Jin, Choi, Jin-Taek, Son, Hee-Jong

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