Search Results - "Son, Changmin"

Comparative Numerical Study of the Influence of Film Hole Location of Ribbed Cooling Channel on Internal and External Heat Transfer by Jeon, Shinyoung, Son, Changmin

“…The influence of film-hole position on internal and external heat transfer was investigated using Computational Fluid Dynamics (CFD). A simplified geometry of…”
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Influence of Swirl Clocking on the Performance of Turbine Stage with Three-Dimensional Nozzle Guide Vane by Jeon, Shinyoung, Son, Changmin, Kim, Jinuk

“…The effect of the swirl clocking on three-dimensional nozzle guide vane (NGV) is investigated using computational fluid dynamics. The research reports the loss…”
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Comparative Study on Steady and Unsteady Flow in a Centrifugal Compressor Stage by Kim, Changhee, Son, Changmin

“…Steady Reynolds-averaged Navier-Stokes (RANS) simulation with the mixing-plane approach is the most common procedure to obtain the performance of a centrifugal…”
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Full Surface Heat Transfer Characteristics of Stator Ventilation Duct of a Turbine Generator by Jeon, Shinyoung, Son, Changmin, Yang, Jangsik, Ha, Sunghoon, Hwang, Kyeha

“…Turbine generators operate with complex cooling systems due to the challenge in controlling the peak temperature of the stator bar caused by Ohm loss, which is…”
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Aerodynamic Performance of Multi-stage Axial Compressor Considering Cold-to-Hot Deformation Effect by Kim, Sangjo, Kim, Kuisoon, Son, Changmin

“…Predicting the exact performance of multi-stage compressors for an aircraft gas turbine is important in the design process and calculation of off-design…”
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Comparative study on implementation technology for enhancing performance of combined cycle power plant in system perspective by Kim, Sangjo, Won, Jumok, Kim, Changju, Son, Changmin

“…In the present study, several technologies are compared and evaluated for improving the power and efficiency of a combined cycle power plant (CCPP) using…”
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Adaptation Method for Overall and Local Performances of Gas Turbine Engine Model by Kim, Sangjo, Kim, Kuisoon, Son, Changmin

“…An adaptation method was proposed to improve the modeling accuracy of overall and local performances of gas turbine engine. The adaptation method was divided…”
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Rapid design approach for U-bend of a turbine serpentine cooling passage by Kim, Changhee, Son, Changmin

“…The goal of this study is to propose a rapid design approach for designing a minimum pressure loss U-bend in a turbine internal cooling passage using topology…”
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A new transient performance adaptation method for an aero gas turbine engine by Kim, Sangjo, Kim, Kuisoon, Son, Changmin

“…The performance adaptation method based on the transient measurement data is proposed to generate a dynamic simulation model for gas turbine engines. The…”
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Transient system simulation for an aircraft engine using a data-driven model by Kim, Sangjo, Kim, Kuisoon, Son, Changmin

“…In this paper, a simulation approach using a data-driven model to predict the performance of a gas turbine for aircraft engines during transient operations is…”
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Three-dimensional unsteady simulation of a multistage axial compressor with labyrinth seals and its effects on overall performance and flow characteristics by Kim, Sangjo, Kim, Kuisoon, Son, Changmin

“…The purpose of this investigation was to explore the effects of leakage flows from labyrinth seals in shrouded stators on the performance and detailed flow…”
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Equivalent model for an axial compressor used for aero engines based on 1D and 3D analytical models and performance data by Kim, Sangjo, Kim, Kuisoon, Son, Changmin

“…This paper proposes a method to generate an equivalent model for predicting compressor performance by correcting a one-dimensional (1D) meanline analysis model…”
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Combining effect of optimized axial compressor variable guide vanes and bleed air on the thermodynamic performance of aircraft engine system by Kim, Sangjo, Son, Changmin, Kim, Kuisoon

“…Aim of this work is to provide evidence of the effectiveness of combined use of the variable guide vanes (VGVs) and bleed air on the thermodynamic performance…”
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Optimum arrangements of guide vanes in a combining header and its effect on the performance of a tubular heat exchanger by Kim, Sangjo, Kim, Kuisoon, Son, Changmin

“…•Guide vanes are installed in the combining header of a U-type tubular heat exchanger.•Arrangements of the guide vanes are obtained by using optimization…”
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Study on the performance of a centrifugal compressor considering running tip clearance by Kim, Changhee, Lee, Horim, Yang, Jangsik, Son, Changmin, Hwang, Yoonjei

“…•The effect of impeller deformation on flow field and performance is investigated.•Running tip clearance is predicted using fluid–structure interaction…”
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A numerical study on natural convection in an inclined square enclosure with a circular cylinder by Park, Hyung Kwon, Ha, Man Yeong, Yoon, Hyun Sik, Park, Yong Gap, Son, Changmin

“…This study examined numerically the natural convection induced by a temperature difference between a cold outer inclined square enclosure and a hot inner…”
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A full engine cycle analysis of a turbofan engine for optimum scheduling of variable guide vanes by Kim, Sangjo, Kim, Donghyun, Son, Changmin, Kim, Kuisoon, Kim, Myungho, Min, Seongki

“…This paper proposes a full engine cycle analysis to derive the schedule of variable guide vanes (VGVs) in a multi-stage axial compressor for improving the…”
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Investigation of high-speed bypass effect on the performance of the surface air–oil heat exchanger for an aero engine by Kim, Sangkeun, Min, June Kee, Ha, Man Yeong, Son, Changmin

“…In the present study, the influence of an air-oil heat exchanger (SAOHE) location and orientation on engine performance is investigated using numerical…”
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Comparative study on steady and unsteady conjugate heat transfer analysis of a high pressure turbine blade by Hwang, Sunwoo, Son, Changmin, Seo, Doyoung, Rhee, Dong-Ho, Cha, Bongjun

“…In this study, an analysis of steady-state and unsteady-state Conjugate Heat Transfer (CHT) of an aeronautic high pressure gas turbine was conducted, which can…”
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Adaptation Method for Overall and Local Performances of Gas Turbine Engine Model by Kim, Sangjo, Kim, Kuisoon, Son, Changmin

“…An adaptation method was proposed to improve the modeling accuracy of overall and local performances of gas turbine engine. The adaptation method was divided…”
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