• Cheon Seog (Steve) Yoon, Ph.D.
• Professor
• Department of Mechanical Engineering
• College  of  Engineering
• HannamUniversity
• 133 Ojung-Dong, Taeduck-Gu, Taejon, KOREA
• Postal Code: 306-791
• Office: (+82-42) 629-8283 Laboratory: (+82-42) 629-8294 Fax: (+82-42) 629-8293
• Home: (+82-42) 861-2362
•  csyoon@hnu.kr / http://epower.hannam.ac.kr

• CFD (Computational Fluid Dynamics) Simulations on Metallic Foam Filter for Diesel Particulate Filter.
• Combustion Modeling and Emission Control in Lean Burn Engine
• Computational Fluid Dynamics of Combustion and Propulsion in Rocket Engine
• Thermal Design and Analysis for Combustor and Turbine Scroll of Gas Turbine Engine
• Thermal Hydraulic Analysis in Superconducting Magnet and Plate Heat Exchanger
• Thermodynamic Cycle and Performance Analysis for Renewable Energy and Absorption Heat Pump

Doctor of Philosophy –Mechanical Engineering

• University of Alabama in Huntsville, Huntsville, AL, USA (01/89 to 06/92)
• Ph.D. Dissertation, “Finite Element Analysis of Supersonic Combustion with Finite Rate Chemistry”Degree awarded 06/92

Masters of Science - Mechanical Engineering

• University of Alabama in Huntsville, Huntsville, AL, USA (01/87 to 12/88)
• Master Thesis, “Laminar Flame Calculations with Ozone Decomposition”Degree awarded 12/88

Bachelor of Science - Mechanical Engineering

• Yonsei University, Seoul, KOREA (03/82 to 02/86)
• Degree awarded 02/86

Professor

Department of Mechanical Engineering, Hannam University, Taejon, KOREA (03/2000 to present)

• Teach undergraduate courses: Thermodynamics; Renewable Energy; Internal Combustion Engine; Automotive Engineering; Heating, Ventilation, and Air Conditioning.
• Teach graduate courses: Computational Fluid Dynamics; Advanced Numerical Analysis; Combustion; Rocket Propulsion and Combustion; Advanced Thermodynamics.
• Write grants to assist department and research, equipment and funding.
• Serve on university, school, and departmental committees.
• Supervise and evaluate departmental faculty members and technical staff.
• Develop, revise and update classes, curriculum, and laboratories in the department.

Visiting  Professor

FEERC(Fuel, Engine, and Emission Research Center), Oak Ridge National Lab., Oak Ridge, TN, USA (01/2006 to 02/2007)

MABED(Mechanical, Aerospace, and Biomedical Engineering Department), University of Tennessee, Knoxville, TN, USA (01/2006 to 02/2007)

• Performed numerical study of DPF regeneration with SOF(Soluble Organic Fractions) modeling.
• Supervised and guided graduate students in their research for LNT(Lean NOx Trap)
• Executed aging study of LNT using bench-flow reactor.

Principal Researcher

Energy Laboratory, Samsung Advanced Institute of Technology (SAIT), Taejon, KOREA (02/97 to 02/2000)

• Performed thermal-hydraulic analysis and design for superconducting magnet in KSTAR (Korean Superconducting Tokamak Advanced Research).
• Conducted thermal design and analysis for vacuum furnace.
•  Investigated and planned new projects for internal combustion engine, focused on the combustion phenomena by computational model and experimental approach such as laser visualization.
• Adjunct professor of mechanical engineering in SMIT (Samsung Institute of Management and Technology).

Senior Research Engineer

Aerospace R&D Center, Engine Research Center, Samsung Aerospace Ltd., Taejon, KOREA (02/94 to 01/97)

• CFD (Computational Fluid Dynamics) specialist.
• Designed, analyzed, and experimented on combustor and turbine scroll in 1.2 MW industrial gas turbine engine as a aerodynamic and cooling point of view.
• Developed new project for turbogenerator of hybrid car and designed plate-fin type heat exchanger.
• Developed new projects for environmental control system and secondary power system in aircraft.
•  Performed aerodynamic configuration, design, and analysis for mid-sized commuter aircraft.
•  Experienced CFD tools such as VSAERO, MGAERO, FLUENT, and RAMPANT.

Senior Research Engineer

Living System Laboratory, Lucky-Goldstar Ltd., Seoul, KOREA (09/92 to 02/94)

• CFD (Computational Fluid Dynamics) specialist.
• Performed experimental and computational work for fluid flow and heat transfer in absorption heat pump, specially on two-phase flow.
• Designed and analyzed of small fan related to consumer electronics.
• Worked on component design and analysis of fin and tube type heat exchanger in HVAC system, special considerations on alternative refrigerants.
• Analyzed fluid flow and heat transfer in refrigerator and rice cooker.
• Developed analysis code for the electromagnetic model of TFT-LCD and microwave oven.

Journal Papers

• Dongkyun Kim and Cheon Seog Yoon, “Study on Multi-Dimensional Simulation of the Flow and Filtration Characteristics in Diesel Particulate Filters,” Transactions of KSAE, Vol. 18, No.3, pp.60-68, 2010.

• Dong Won Shin and Cheon Seog Yoon, “Study on Transient Analysis for Flow Characteristics in DPF,” Transactions of KSAE, Vol. 18, No.1, pp.131-138, 2010.

• Dongkyun Kim and Cheon Seog Yoon, “Study on Flow Analysis in Glass Panel Vacuum Lift System,” Transactions of the KSME B, Vol. 33, No. 11, pp.886-893, 2009.

• Cheon Seog Yoon and Gyubaek Cho, “Study of Design & CFD Analysis for Partial DPF Utilizing Metal Foam,” Transactions of KSAE, Vol. 17, No.1, pp. 24-34, 2009.

• Cheon Seog Yoon, Hakyong Kim, and Ke Nguyen, “Study of Characterization for Lean NOx Trap Catalysts Utilizing a Bench-Flow Reactor System,” Transactions of KSAE, Vol. 16, No. 5, pp. 179-189, 2008.

• Cheon Seog Yoon and In-Seak Kang, “Heat Transfer Characteristics of Two-Phase Thermosyphone Loop for Electronic Equipment Cooling,” Journal of Science and Engineering in Hannam University, 2006

• Wooho Chung, Soohwan Park, Qiuliang Wang, Sangkwon Jeong, Cheon Seog Yoon, Yeong-Kook Oh, Keeman Kim, Joo Shik Bak, and G. S. Lee, “Thermo-Hydraulic Analysis of the KSTAR Central Solenoid Model Coil,” IEEE  Transactions on Applied Superconductivity, Vol. 15, No. 2, pp. 1411-1414, June 2005.

• B. S. Lim, J. Y. Choi, K. C. S. Kim, H. T. Park, H. K. Park, S. I. Lee, W. Chung, Y. Chu, K. Pak, Y. K. Oh, K. Kim, J. S. Bak, Y. Suh, C. S. Yoon, and S. Y. Kim, “Jacketing and Repair of the KSTAR CICC,” IEEE  Transactions on Applied Superconductivity, Vol. 15, No. 2, pp. 1415-1418, June 2005.

• Qiuliang Wang, Keeman Kim, Hyunki Park, Wooho Chung, C. S. Yoon, and Zengan Fen, "Heating Surge and Temperature Oscillation in KSTAR PF and TF Coils for Plasma Disruption Under Continuous Plasma Discharging Conditions," IEEE  Transactions on Applied Superconductivity, Vol. 14, No. 2, pp. 1451-1454, June 2004.

• Wooho Chung, Qiuliang Wang, Sangkwon Jeong, Cheon Seog Yoon, Hyunki Park, and Keeman Kim,  "Opearting Characteristics of the  KSTAR Superconducting TF Coil," IEEE  Transactions on Applied Superconductivity, Vol. 14, No. 2, pp. 1334-1337, June 2004.

• Cheon Seog Yoon and Seunghan Han, "CFD Analysis for the Flow Phenomena of the Narrow Channels in Plate Heat Exchanger for Intercooler, Transactions of the Korean Society of Automotive Engineers, Vol. 12, No. 2, pp. 91-100, 2004.

• Qiuliang Wang, Cheon Seog Yoon, Sungkeun Baang, Keeman Kim, and Wooho Chung, "Simulation of Dynamic Stress in PF Superconducting Magnets for KSTAR Under Normal Operating Conditions," IEEE  Transactions on Applied Superconductivity, Vol. 13, No. 2, pp. 1488-1491, June 2003.

• Qiuliang Wang, Keeman Kim, Cheon Seog Yoon, and Jinliang He,"Moving Mesh Application for Thermal-Hydraulic Analysis in Cable-In-Conduit-Conductors of KSTAR Superconducting Magnet," KSME International Journal, Vo. 16, No. 4, pp. 522-531, 2002.

• Qiuliang Wang, Jinliang He, Cheon Seog Yoon, and Keeman Kim, "Influence of Current Diffusion in Superconducting Magnet Fabricated by High Stablizer Aluminium on Quench Propagation," IEEE  Transactions on Magnetics, Vo. 38, No. 2, pp. 1197-1200, March 2002.

• Cheon Seog Yoon, Qiuliang Wang, Young Sung Suh, Sun Woong Choi, Wooho Chung, Hyunki Park, and Keeman Kim, "Influence of Inlet Pressure and Mass Flow Rate on the Temperature Rise of Superconducting Strands in SSTF under the Normal Operating Condition," IEEE Transactions on Applied Superconductivity, Vol. 12, Issue 1, pp. 1541-1544, March 2002.

• Qiuliang Wang, Cheon Seog Yoon, Jinliang He, Keeman Kim, and Wooho Chung, "Operating Temperature Margin and Heat Load in PF Superconducting Coils of KSTAR," IEEE  Transactions on Applied Superconductivity, Vol. 12, Issue 1, pp. 648-652, March 2002.

• Qiuliang Wang, Jinliang He, Cheon Seog Yoon, Wooho Chung, and Keeman Kim, "Simulation on Helium Expansion and Quench in CICC for KSTAR with Moving Mesh Methods," IEEE Transactions on Applied Superconductivity, Vol. 12, Issue 1, pp. 1591-1594, March 2002.

• Yeong Sung Suh, Cheon Seog Yoon, Sun Woong Choi, Hyun Ki Park, and Keeman Kim," A Study on the Forming of CICC for the Superconducting Tokamak Device with Post-Forming Predictions via Virtual Manufacturing," IEEE  Transactions on Applied Superconductivity, Vol. 12, Issue 1, pp. 1751-1754, March 2002.

• Cheon Seog Yoon, Qiuliang Wang, Myungkyu Kim, Keemam Kim, and Dong-Ryul Lee, " Parametric Study for Conductor Design of KSTAR PF Coils," KSME International Journal , Vol. 16, No. 2, pp. 227-234, 2002

• Qiuliang Wang, Cheon Seog Yoon, Sungkeun Baang, Myungkyu Kim, Hyunki Park, Yongjin Kim, Sangil Lee, and Keeman Kim, "AC Losses and Heat Removal in Three-Dimensional Winding Pack of Samsung Superconducting Test Facility Under Pulsed Magnetic Field Operation," Cryogenics, Vol. 41, Issue 4, pp. 253-265, 2001.

• Q.L. Wang, C.S. Yoon, J.L. He, M.K. Kim, and K. Kim, "Quench Characteristics in the Multi-Sectioned Superconducting Magnet Impregnated with Epoxy Resin," Physica C, Vol. 354, No. 1-4, pp. 77-82, May 2001.

• M. Kim, K. Kim, Y. Chang, B. Lim, S. Kim, and  C.S. Yoon, "Performance Variation of KSTAR Nb3Sn Strand Caused by Heat Treatment Failure," Physica C, Vol. 354, No. 1-4, pp. 406-409, May 2001.

• S. Baang, V.E. Keilin, K. Kim, S. Kim, Y.J. Kim, I.A. Kovalev, S.L. Kruglov, H. Park, A.V. Rychagov, I.O. Shchegolev, M.I. Surin, V.E. Sytnikov, Q. Wang, and C.S. Yoon, " The Conductors of the 50 kA Superconducting Transformer for SSTF," Physica C, Vol. 354, No. 1-4, pp. 105-109, May 2001.

• Q. Wang, C.S. Yoon, S. Baang, S.B. Kim, H.K. Park, M.K. Kim, Y.J. Kim, S.I. Lee, and K. Kim, "Thermohydraulic Simulation on CIC Conductor with Adaptive Mesh Finite Volume Method for KSTAR Tokamak Superconducting Magnet," IEEE Transactions on Applied Superconductivity, Vol. 11, No. 1, pp. 2070-2073, March 2001.

• Q. Wang, J. He, C.S. Yoon, K. Kim, and Z. Nam, "Analysis of Normal Zone Propagation in Pancake-Shaped Nb3Sn Superconducting Magnet," IEEE Transactions on Applied Superconductivity, Vol. 11, No. 1, pp. 1685-1688, March 2001

• Q. Wang, S. Baang, C.S. Yoon, S.B. Kim, H.K. Park, M.K. Kim, Y.J. Kim, S.I. Lee, and K. KIm, "Induced Voltage and Alternating Current Loss in Superconducting Magnet System for SSTF," IEEE Transactions on Applied Superconductivity, Vol. 11, No. 1, pp. 2074-2077, March 2001

• Q. Wang, K. Kim, and C.S. Yoon "Numerical Model for Thermal Hydraulic Analysis in Cable-in-Conduit-Conductors," KSME International Journal, Vol.14, No. 9, pp. 985-996, 2000.

• Q. Wang, C.S. Yoon, and K. Kim, "Analysis on Stability Margin of Nb3Sn Cable-In-Conduit-Conductor," IEEE Transactions on Applied Superconductivity, Vol.10, No. 1, pp. 693-696, March 2000.

• S. Baang, S.H. Baek, H.J. Choi, E.J. Chung, Y.B. Chang, J.H. Kim, J.S. Kim, K. Kim, M.K. Kim, S.B. Kim, Y.J. Kim, S.I. Lee, S.Y. Lee, Y.H. Lee, H. Park, K.R. Park, C. Winter, and C.S. Yoon, "The Test Facility for The KSTAR Superconducting Magnets at SAIT," IEEE Transactions on Applied Superconductivity, Vol. 10, No. 1, pp. 645-648, March 2000.
• Q. Wang, C.S. Yoon, and K. Kim, "Simulation of Quench in Pancake-Shaped Superconducting Magnet Using a Quasi-Three-Dimensional Model," Progress in Superconductivity, Vol. 1, No. 2, pp. 125-134, 2000.

• Q. Wang, S. Oh, K. Ryu, C.S. Yoon, and K. Kim, "Numerical Analysis of Stability Margin and Quench Behavior of Cable-In-Conduit NbTi Conductors for KSTAR," IEEE Transactions on Applied Superconductivity, Vol. 9, No. 2, pp620-623, 1999.

• S.Y. Moon, C.S. Yoon, and T.J. Chung, "Multi-Tasking for Local Parallelism in Applications to Chemically Reacting Supersonic Flows on CRAY Y-MP," International Journal of Supercomputer Applications, Vol. 6., No. 4, pp. 371-382, 1993.

Conference Papers

• Cheon Seog Yoon, Euisung Lee, Kwonoh Oh, Seunghan Han, Kyungjae Kim, Seunlyong Park, Gyubaek Cho, Hongsuk Kim, and Youngil Jeong, “Study of Design & Analysis for Partial DPF Utilizing Metal Foam,” Proceedings of KSAE 2007 Fall Conference, November, 2007

• Gyubaek Cho, Huynha Choi, Youngil Jeong, Hongsuk Kim, Seokjong An, Byongkoog Jeong, Young Choi, Donghee Kim, Cheon Seog Yoon, Euisung Lee, Kwonoh Oh, Seunghan Han, Kyungjae Kim, Seunlyong Park, Gangchul Lim, and Sujin Choi, “PM Reduction Performance and Regeneration Characteristics of Catalyzed Metal Foam Filters for a 3L Diesel Passenger Vehicle,” SAE 2007-01-3456, 14th Asia-Pacific Automotive Engineering Conference, Aug. 5-8, Hollywood, CA, USA, 2007

• Ke Nguyen, Hakyong Kim, Bruce G. Bunting, Todd Toops, and Cheon Seog Yoon, “Rapid Aging of Diesel Lean NOx Traps by High-Temperature Thermal Cycling,” SAE 2007-01-0470, SAE 2007 World Congress, Detroit, MI, April, 2007

• Cheon Seog Yoon, Qiuliang Wang, and Keeman Kim, "Validation of 3D Heat Transfer Model for Thermal-Hydraulic Analysis in Cable-In-Conduit-Conductor of KSTAR PF Coils, Proceedings of the KSME 1999 Fall Annual Meeting (B), pp. 284-290, November, 1999

• D. Lee and C.S. Yoon, "Study of Viscous Heating Effects in Industrial Fluids," SAE Technical Paper No. 98043, 1998.

• D. Lee and C.S. Yoon, "Effect of Shear Rate Dependent Thermal Conductivity on Heat Transfer to Industrial Fluids in Heat Exchanger," SAE Technical Paper No. 98033, 1998

• Cheon Seog Yoon, Juchul Lee, JeongLak Sohn, "Aerodynamic Design and Analysis for Turbine Scroll," Proceedings of the KSAS Spring Annual Meeting '96, pp. 48-53, 1April, 1996

• Cheon Seog Yoon, Jaekyu Lee, and Choongkun Lee, "Flow Analysis of High Lift Device (Second Report)," Proceedings of the KSAS Spring Annual Meeting '95, pp. 203-208, April, 1995

• Cheon Seog Yoon and Jaekyu Lee, "Flow Analysis of High Lift Device," Proceedings of the KSAS Fall Annual Meeting '94, pp. 203-208, November, 1994

• C.S. Yoon, "Finite Element Analysis of Supersonic Combustions in a Rocket Nozzle," The Third JSME-KSME Fluid Engineering Conference, Sendai, Japan, pp. 625-632, 1994.

        Text Book

• C. S. Yoon, Renewable Energy, Infinity Books, KOREA, 2009.

• C. S. Yoon, et. al. Introduction to Thermodynamics, McGraw-Hill., KOREA, 2009.

• H. Jung, Y. Suh, C. S. Yoon, and M. Choi, Fundamentals of Finite Element Analysis, Intervision Co. LTD., KOREA, 2006.

• C.S. Yoon, Alternative Energy, Intervision Co. LTD., KOREA, 2004.

• W.G. Sim, and C.S. Yoon, Mechanical Engineering Laboratory for Thermo Fluids. Hannam University Press, 2003.

• Project Manager, “Development of Vacuum-Adsorption System for Glass Panels in Post-Process Module Line of Next Generation FPD(PDP/LCD),” Project of Industry and University Consortium, Sponsored by SMBA(Small and Medium Business Administration) and Daejon City, 2007-2008

• Project Manager, “Study of Design & Analysis of Catalytic Reformer,” Sponsored by KIMM(Korean Institute of  Machinery and Materials), 2007-2008

• Co-Principal Investigator, “Numerical Study of DPF Regeneration with SOF Modeling,” Sponsored by Oak Ridge National Lab, 2006-2007

• Co-Principal Investigator, “Aging Study of LNT Using Bench Flow Reactor,” Sponsored by University of Tennessee, 2006-2007

• Project Manager, “CFD Analysis for the Development of Partial DPF Utilizing Metal Foam,” Sponsored by Korea Nickel Company, 2006

• Co-Principal Investigator, “Development of Metallic Foam Filter for Diesel Particulate Filter,” Eco-Star Project, Sponsored by Center for Environmentally Friendly Vehicle, and Ministry of Environment, 2004-2005

• Project Manager, "Study on the Thermal Hydraulic Design and Analysis for Plate Heat Exchanger," Sponsored by KISTI and MOST, 2002-2003.

• Project Manager, "Development of Patent Map for Gas Turbine Engine," Sponsored by KIPO, 2002.

• Project Manager, "Study on the Basic Design and Analysis for Development and Manufacturing Related to Superconducting Magnet," Sponsored by MOST and Samsung Electronics Ltd. 2000-2002.

• Project Manager, "Study on the Thermal Design and Analysis for Vacuum Furnace," Sponsored by KORDIC and MOST, 2000-2001.

• Co-Principal Investigator, "Thermal Hydraulic Design and Analysis of Superconducting Magnet," Sponsored by MOST and Samsung Electronics Ltd. 1997-2000.

• Co-Principal Investigator, "Aerodynamic and Thermal Design and Analysis for Combustor and Turbine Scroll in 1.2 MW Industrial Gas Turbine Engine," Sponsored by MOCIE and Samsung Aerospace Ltd. 1995-1997.

• Co-Principal Investigator, "Conceptual and Aerodynamic Design  and Analysis for Mid-Sized Commuter," Sponsored by MOCIE and Samsung Aerospace Ltd. 1995-1997.

• Co-Principal Investigator, "Design, Analysis, and Experiment of Heat and Mass Transfer for Absorber in Absorption Heat Pump," Sponsored by KEMCO and Lucky-Goldstar Ltd. 1992-1994.

• American Society of Mechanical Engineer

• Society of Automotive Engineers

•  American Institute of Aeronautics and Astronautics

•  Korean Society of Mechanical Engineer

• Korean Society of Automotive Engineers

• Korean Society of Aeronautical and Space Sciences

• Korean Society of Computational Fluids Engineering

• Korean Institute of Applied Superconductivity and Cryogenics

• Serve on advisory committee of the new project for the R&D of energy and resource in Korea Energy Management Corporation.

• Serve on advisory committee of the technology of energy saving for Cogeneration in Korea Energy Management Corporation.

• Serve on several evaluation committee of specific fundamental R&D project in Korea Science and Engineering Foundation.

• Serve on several evaluation committee of the R&D project for lead researcher in Korea Research Foundation.

• Serve on several evaluation committee of fundamental research for ramjet engine in Agency for Defense Development.

• Serve on evaluation committee for Eco-Star project in Korea Institute of Environmental Science and Technology.

• Serve on technical committee of Environmental Management Corporation.

• Serve on several investigation committee of new technology for direct injection diesel engine, and gas turbine engine in Korean Intellectual Property Office.