Yu Shi

Personal Homepage

Ph.D expected Fall 2009

Project

Development of efficient chemistry solver: The goal of this research is to provide an efficient and reliable combustion model for engine optimization. Engine optimization: The objective of this research is to explore the effects of combustion chamber geometry combining with spray targeting and swirl on diesel engine performance and emissions. Engine Scaling: The goal of this research project is to help define the major design parameters that control diesel engine performance as a function of engine size.

Long Term Goals

To gain insightful understanding of combustion processes in engines using CFD modeling. With the knowledge, to design more efficient and environmentally-friendly engines. My career goal is to be an excellent engineer in automobile and engine related industry.

Education

• Ph.D student, University of Wisconsin Madison,2006~
• Research Assistant, University of Missouri Columbia,2005~2006
• M.S, Huazhong Univ. of Sci. & Tech., China, 2005
• B.S, Huazhong Univ. of Sci. & Tech., China, 2003

Experience

Publications

• "Optimization of a HSDI Diesel Engine at Low-Load Operation Using CFD with Detailed Chemistry and Multi-Objective Genetic Algorithm", Ge, H.-W., Shi, Y., Reitz, R. D., and Willems, W., Proceedings of the Institution of Mechanical Engineers, Part D, Journal of Automobile Engineering, 2010 (In press)
• "Assessment of Multi-objective Genetic Algorithms with Different Niching Strategies and Regression Methods for Engine Optimization and Design", Shi, Y. and Reitz, R. D., Journal of Engineering for Gas Turbines and Power, 132, 2010 (DOI:10.1115/1.4000144)
• "An Adaptive Multi-grid Chemistry (AMC) model for efficient simulation of HCCI and DI engine combustion", Shi, Y., Hessel, R. P., and Reitz, R. D., Combustion Theory and Modelling, Vol 13, No. 1, pp.83-104,2009 (DOI:10.1080/13647830802401101)
• "A Semi-Exact Solution for Solidification of a Binary Solution on a Cold Isothermal Surface below Eutectic Temperature", Shi, Y. and Zhang, Y., Heat Transfer Engineering, Vol. 30, No. 5, pp. 368 - 374, 2009 (DOI: 10.1080/01457630802414649)
• "Optimization Study of the Effects of Bowl Geometry, Spray Targeting and Swirl Ratio for a Heavy-Duty Diesel Engine Operated at Low- and High-Load", Shi, Y. and Reitz, R. D., International Journal of Engine Research, Vol. 9, NO. 4, pp.325-346, 2008. (DOI: 10.1243/14680874JER00808)
• "Simulation of Random Packing of Spherical Particles with Different Size Distributions," Shi, Y. and Zhang, Y., Applied Physics A: Materials Science & Processing, Vol. 92, No. 3, pp. 621-626, 2008. ( DOI:10.1007/s00339-008-4547-6)
• "Assessment of Optimization Methodologies to Study the Effects of Bowl Geometry, Spray Targeting and Swirl Ratio for a Heavy-Duty Diesel Engine Operated at High-load", Shi, Y. and Reitz, R. D., SAE Transaction, Journal of Engines, Vol 117, 2008 (SAE 2008-01-0949)
• "Solid-Liquid and Liquid-Vapor Phase Change Induced by a Nanosecond Laser in Selective Laser Sintering", Shi, Y., Zhang, Y., and Konrad, C., Nanoscale and Microscale Thermophysical Engineering, Vol. 11, No. 3-4, pp. 301-318, 2007. (DOI: 10.1080/15567260701715396)
• "Melting and Resolidification of Subcooled Metal Powder Particle Subjected to Nanosecond Laser Heating", Konrad, C., Zhang, Y., and Shi, Y.,Int. J. Heat Mass Transfer, Vol. 50, No. 11-12,pp. 2236-2245, 2007. (DOI: 10.1016/j.ijheatmasstransfer.2006.10.041)
• "Efficient Multidimensional Simulation of HCCI and DI Engine Combustion with Detailed Chemistry", Shi, Y., Kokjohn, S. L., Ge, H.-W., and Reitz, R. D., SAE 2009-01-0701
• ."Optimization of a HSDI Diesel Engine for Passenger Cars Using a Multi-Objective Genetic Algorithm and Multi-Dimensional Modeling", Ge, H.-W., Shi, Y., and et al., SAE 2009-01-0715 (selected for publication in SAE Transaction)
• "Heavy-Duty Diesel Combustion Optimization Using Multi-Objective Genetic Algorithm and Multi-Dimensional Modeling", Ge, H.-G., Shi, Y., and et al., SAE 2009-01-0716
• "Study of Diesel Engine Size-Scaling Relationships Based on Turbulence and Chemistry Scales", Shi, Y. and Reitz, R. D., SAE 2008-01-0955.
• "Research on Unconventional Emission in an HCCI Engine Operated with Neat Dimethyl Ether", Mo, C., Zhang, Y., Shi, Y., and et.al. JSAE 20077028/SAE 2007-01-01888

Sponsors

• Department of Energy
• Caterpiller Inc.