Design and Simulation of Two Stroke Engines

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Design and Simulation of Two-Stroke Engines References for Chapter 5 5.1 F. Nagao, Y. Shimamoto, "Effect of the Crankcase Volume and the Inlet System on the Delivery Ratio of Two-Stroke Cycle Engines," SAE Paper No. 670030, Society of Automotive Engineers, Warrendale, Pa., 1967. 5.2 G.P. Blair, "Gas Flow Techniques Applied to a Sleeve-Valve Engine Design," Automotive Design Engineering, Vol 9, April 1970. 5.3 G.P. Blair, M.B. Johnston, "The Development of a High Performance Motor Cycle Engine," Prod. Mech.E., 1970-1971, Vol 185, 20/71, pp273-283. 5.4 G.P. Blair, W.L. Cahoon, "The Design and Initial Development of a High Specific Output, 500cc Single Cylinder, Two-Stroke, Racing Motorcycle Engine," SAE Paper No. 710082, Society of Automotive Engineers, Warrendale, Pa., 1971. 5.5 G.P. Blair, "Further Development of a 500cc Single Cylinder Two-Cycle Engine for Motorcycle Racing and Motocross Applications," SAE Paper No. 740745, Society of Automotive Engineers, Warrendale, Pa., 1974. 5.6 R. Mellde, J. Eklund, K. Knutsson, "Use of the Two-Stroke Cycle Engine as a Power Unit for a Passenger Car," SAE Paper No. 650008, Society of Automotive Engineers, Warrendale, Pa., 1965. 5.7 V Sathe, PS. Myers, O.A. Uyehara, "Parametric Studies using a Two-Stroke Engine Cycle Simulation," SAE Paper No. 700124, Society of Automotive Engineers, Warrendale, Pa., 1970. 5.8 R.B. Krieger, R.R. Booy, P.S. Myers, O.A. Uyehara, "Simulation of a Crankcase Scavenged Two-Stroke, SI Engine and Comparison with Experimental Data," SAE Paper No. 690135, Society of Automotive Engineers, Warrendale, Pa., 1969. 5.9 G.P. Blair, E.T. Hinds, R. Fleck, "Predicting the Performance Characteristics of Two- Cycle Engines Fitted with Reed Induction Valves," SAE Paper No. 790842, Society of Automotive Engineers, Warrendale, Pa., 1979. 5.10 D.S. Sanborn, "Paper Powerplants Promote Performance Progress," SAE Paper No. 750016, Society of Automotive Engineers, Warrendale, Pa., 1975. 5.11 G.J. Van Wylen, R.E. Sonntag, Fundamentals of Classical Thermodynamics. 2nd Edition, SI Version, Wiley, New York, 1976. 5.12 K.J. Patton, R.G. Nitschke, J.B. Hey wood, "Development and Evaluation of a Friction Model for Spark-Ignition Engines," SAE Paper No. 890836, Society of Automotive Engineers, Warrendale, Pa., 1989. 5.13 H. Naji, R. Said, R.P. Borghi, "Towards a Turbulent Combustion Model for Spark- Ignition Engines," SAE Paper No. 890672, Society of Automotive Engineers, Warrendale, Pa., 1989. 5.14 K. Landfahrer, D. Plohberger, H. Alten, L.A. Mikulic, "Thermodynamic Analysis and Optimization of Two-Stroke Gasoline Engines," SAE Paper No. 890415, Society of Automotive Engineers, Warrendale, Pa., 1989. 5.15 E.T.Hinds, G.P.Blair, "Unsteady Gas Flow Through Reed Valve Induction Systems," SAE Paper No. 780766, Society of Automotive Engineers, Warrendale, Pa., 1978, plO. 410
Chapter 5 - Computer Modeling of Engines 5.16 R.Fleck, G.P.Blair, R.A.R.Houston, "An Improved Model for Predicting Reed Valve Behaviour in Two-Stroke Cycle Engines," SAE Paper No. 871654, Society of Automotive Engineers, Warrendale, Pa., 1987, p21. 5.17 R.Fleck, R.A.R.Houston, G.P.Blair, "Predicting the Performance Characteristics Of Twin Cylinder Two-Stroke Engines for Outboard Motor Applications," SAE Paper No. 881266, Society of Automotive Engineers, Warrendale, Pa., 1988, p25. 5.18 E.T. Hinds, "Intake Flow Characteristics of a Two-Stroke Cycle Engine fitted with Reed Valves," PhD Thesis, The Queen's University of Belfast, August 1978. 5.19 R. A.R. Houston, "Performance Modelling of Multi-Cylinder Reed Valve, Two-Stroke Cycle Engines," PhD Thesis, The Queen's University of Belfast, May 1988. 5.20 G.P. Blair, S.J. Kirkpatrick, R. Fleck, "Experimental Evaluation of a ID Modelling Code for a Pipe containing Gas of Varying Properties," SAE Paper No. 950275, Society of Automotive Engineers, Warrendale, Pa., 1995, pl4. 5.21 G.P. Blair, S.J. Kirkpatrick, D.O. Mackey, R. Fleck, "Experimental Evaluation of a ID Modelling Code for a Pipe System containing Area Discontinuities," SAE Paper No. 950276, Society of Automotive Engineers, Warrendale, Pa., 1995, pl6. 5.22 J.S.Richardson, D.W.Artt, G.P.Blair, "A Computer Model of a Pulsejet Engine," SAE Paper No. 820953, Society of Automotive Engineers, Warrendale, Pa., 1982, p28. 5.23 D. Thornhill, R. Fleck, "Design of a Blower-Scavenged, Piston Ported, V6, Twostroke Automotive Engine," SAE Paper No. 930980, Society of Automotive Engineers, Warrendale, Pa., 1993. 5.24 D. Thornhill, R. Fleck, "A Generic Engine Simulation Program Applied to the Development of a V6 Automotive Two-Stroke Engine," SAE Paper No. 940396, Society of Automotive Engineers, Warrendale, Pa., 1994. 5.25 G.P. Blair, H.B. Lau, B.D. Ragunathan, A. Cartwright, D.O. Mackey, "Coefficients of Discharge at the Apertures of Engines," SAE Paper No. 952138, Society of Automotive Engineers, Warrendale, Pa., 1995. 411
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Design and Simulation of Two-Stroke
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A Second Mulled Toast When as a stu
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Acknowledgments As explained in the
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Table of Contents Nomenclature xv C
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Table of Contents 2.10.1 Flow at pi
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Table of Contents 3.5.3.1 The use o
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Table of Contents 6.1.3 The effect
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Nomenclature NAME SYMBOL UNIT (SI)
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speed of rotation speed of rotation
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attenuation or transmission loss wa
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Design and Simulation ofTwo-Stroke
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Design and Simulation ofTwo'Stroke
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Chapter 4 Combustion in Two-Stroke
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Chapter 4 - Combustion in Two-Strok
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a stratilpl o tions to ivior. If m
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CD 30 -, W 20 - LU CO iS _J LU OC 1
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181 also x3 = — = 0.905 x6 = 2.17
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to be cur .3.20) .3.21) .3.22) for
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3.23) com- :on is hhas has a /eng-
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stroke .3.29) mean me to 3land ssio
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a LU z: en 3 CO a LU z EC D m O ho
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CD 1.2 -i 1.0 - di „„ LU 0.8 cc
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CO —> 111" cc LU < LU _J LU CC £
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Combustion in compression-ignition
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stroke ari more often lseful lental
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lat the ssi ;tribu- ELEVATION VIEWS
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CYLINDER HEAD TYPE IS CENTRAL BORE,
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CO E 50 40 - O O _i Hi > I CO 30 Z)
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CURRENT INPUT DATA FOR 2-STROKE 'SP
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Cylin- PP £ Pa- tics of Paper Chap
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vfitro- ;titi >tants 1970. i(In- Ch
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£2 = Pi P2 I Pi J Chapter 4 - Comb
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CHAINSAW AT 9600 rpm. Chapter 4- Co
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LLI •z. O N -z. 0.21 -, 0.20 DC 0
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Chapter 7 Reduction of Fuel Consump
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Chapter 7 • Reduction of Fuel Con
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Chapter 7 - Reduction of Fuel Consu
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^ s C£ Q 2^ E Q. Q_ z' o ISSI HCEM
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o > z~ Q w CO UJ w g x O z o z o m
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S.S.F.C. , C./SHP-HS Chapter 7 - Re
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0.35 • 0.34 LU ° 0.33 - c 03 DC
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§ 2000
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y, ,6 Chapter 7 - Reduction of Fuel
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Chapter 7- Reduction of Fuel Consum
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INLET FOR r AIR AND FUEL Chapter 7
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o Q_ Ld < CD 15-, 10- Chapter 7 - R
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Chapter 8 Reduction of Noise Emissi
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Chapter 8 • Reduction of Noise Em
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Chapter 8 - Reduction of Noise Emis
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H Chapter 8 - Reduction of Noise Em
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1 Chapter 8 - Reduction of Noise Em
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• • / . • Appendix Listing of
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Active radical (AR) combustion and
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initial conditions, assumptions reg
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in two-stroke engine (schematic dia
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exhaust timing control valve, effec
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I Exhaust emissions/exhaust gas ana
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Exhaust systems (continued) untuned
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gas constant/universal gas constant
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in crankcase heat transfer analysis
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Mercury Marine air-assisted fuel in
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I PISTON POSITION (computer program
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Pressure wave reflection (in pipes)
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local acoustic velocity, 60 local M
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Roots blower in turbocharged/superc
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Scavenging (continued) scavenging e
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Simulation, engine See Computer mod
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temperature vs. crankshaft angle (c
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work per thermodynamic (Otto) cycle
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