Publications
227 results found
Ault J, Carabateas NE, Taylor, et al., 1997, Cyclic variability of lean combustion and gas motion at the spark plus of a VTEC-E Honda engine, Proceedings ISTP-10 Kyoto, Pages: 743-748
Sardi K, Taylor AMKP, Whitelaw JH, 1997, Experimental investigation of the interaction between scalar dissipation and strain rate in a counterflow geometry, IUTAM Symposium on Variable Density Low-Speed Turbulent Flows, Publisher: KLUWER ACADEMIC PUBL, Pages: 143-150
Prassas I, Taylor, AMKP, et al., 1997, Simultanaeous measurement of velocity, size and temperature of burning coal particles in swirl-stabilised vitiated air flames, Proceedings of the international conference on technologies and combustion for a clean environment Lisbon
Hardalupas Y, Whitelaw JH, 1996, Coaxial airblast atomizers with swirling air stream, Recent Advances in Spray Combustion: Spray Combustion Measurements and Model Simulation, Editors: Kuo, Kuo, Washington, Publisher: AIAA, Pages: 201-232, ISBN: 9781563471810
Hardalupas Y, Liu CH, Tsai RF, et al., 1996, Coaxial atomization and combustion, Mechanics and Combustion of Droplets and Sprays Taiwan, Editors: Chiu, Chigier, Chiu, Chigier, Publisher: Begell House, Pages: 22-52, ISBN: 9781567000511
Posylkin M, Taylor, AMKP, et al., 1996, Manifold injection and the origin of droplets at the exit of an inlet valve, Developments in laser techniques and applications to fluid mechanics. Proceedings 7th international symposium Lisbon Portugal 11-14 July 1994/ edited by R.J. Adrian and others, Publisher: Springer, Pages: 132-146
Carabateas NE, Taylor AMKP, Whitelaw JH, et al., 1996, Droplet velocities within the pent-roof of a Honda Vtec-E cylinder head, IMechE Seminar on Lean Burn Combustion Engines, Publisher: MECHANICAL ENGINEERING PUBL, Pages: 55-63, ISSN: 1357-9193
Morikita H, Prassas I, Taylor, et al., 1996, Accuracy of particle flux and volume fraction measurement by shadow doppler velocimetry, 8th international symposium on applications of laser techniques to fluid mechanics, Lisbon, Publisher: Springer, Pages: 233-258
Hardalupas Y, Tagawa M, Taylor, et al., 1996, Characteristics of counter-gradient heat transfer in a non-premixed swirling flame Developments in laser techniques and applications to fluid mechanics, Applications of Laser Techniques to Fluid Mechanics, Publisher: Springer Verlag, Pages: 159-184, ISBN: 9783540602361
Taylor AC, Blackman BRK, Kinloch AJ, et al., 1996, The impact testing of adhesive joints, Proceedings of the 19th annual meeting of the Adhesion Society Myrtle Beach South Carolina February 18-21 1996, Editors: Thomas, Thomas, Thomas, Publisher: Adhesion Society, Pages: 225-229
Hardalupas Y, Taylor, AMKP, et al., 1996, Experiments with unsteady two-phase flows, Proceedings of the 12th Australasian Fluid Mechanics Conference 1996, Pages: 313-326
Carabateas NE, Taylor, AMKP, et al., 1996, The effect of injector and intake port design on in-cylinder fuel droplet distribution, airflow and lean burn performance for a Honda VTEC-E engines, SAE technical paper 961923, Publisher: Society of Automotive Engineers
Maeda M, Morikita H, Prassas I, et al., 1995, Size and velocity measurement of shadow Doppler velocimetry within a pulverized coal-fired furnace, ISSN: 0272-5673
We report the application of the Shadow Doppler Velocimeter (SDV) for spatial precise, simultaneous measurement of size and velocity to assess the particle retention performance of a laboratory, 1/6 scale, 8 kW vertically-fired atmospheric model of the pressurized pulverized-coal furnace of Reichert et al. (1990). The SDV is based on the imaging of a conventional LDV probe volume onto a linear photodiode array and has the advantage over other sizing methods for irregular particles that it is tolerant of the optical misalignment and fouling which are inevitable when passing laser beams through windows in such furnaces. The size and two components of velocity of burning coal particles were measured in the present geometry which has 172 mm furnace diameter and 40 mm lateral exit duct diameter and a calculated exit bulk velocity of 4 m/s, evaluated at 300 K. The Sauter mean diameter of the particles is, within the experimental error, uniform at about 40 μm in the vertical profile normal to the axis of the exhaust pipe, 34.5 mm upstream of the exit. Coal particle velocities in the near-exit region are directed towards the exit, closely following the gas-phase velocities. Both these observations imply that particle retention efficiency due to streamline curvature is low and extrapolation suggests that there will be even less at large scales.
Taylor AMKP, 1995, Experimental techniques for dispersed two phase flows
Experimental techniques for dispersed two phase flows have come to be dominated by optical, and predominantly laser-based techniques in the past decade or so. The purpose of this paper is to provide an overview of these techniques, to describe the facilities and limitations of which the new-comer - or CFD practitioner - needs to be aware and to put recent and current research findings on the techniques into perspective. There have been a number of such publications recently (Jones, 1993; Taylor, 1992 & 1994, Bachalo, 1991) and the current paper is written with the intention that the reader should consult these as well. It is customary to divide optical instruments into ensemble- and single-particle counters. Generally, these instruments provide information on the size distribution, some on the concentration and most single-particle counters provide information on the velocity as well. Of the latter techniques, the phase Doppler anemometer has had the most research effort applied to it and has provided most of the applications in published research. The reasons for this will be discussed and, in particular, the limitations on the sizing accuracy of standard designs and the recently proposed improvements will be discussed. Other, novel techniques are also appearing and these will be presented in the paper also.
MASTORAKOS E, TAYLOR A, WHITELAW JH, 1995, EXTINCTION OF TURBULENT COUNTERFLOW FLAMES WITH REACTANTS DILUTED BY HOT PRODUCTS, COMBUSTION AND FLAME, Vol: 102, Pages: 101-114, ISSN: 0010-2180
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- Citations: 94
ISRAEL F, TAYLOR A, WHITELAW JH, 1995, SIMULTANEOUS MEASUREMENT OF DROPLET VELOCITY AND SIZE AND FLAME MANTLE TEMPERATURE BY PHASE DOPPLER ANEMOMETRY AND 2-COLOR PYROMETRY, MEASUREMENT SCIENCE AND TECHNOLOGY, Vol: 6, Pages: 727-741, ISSN: 0957-0233
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- Citations: 4
HARDALUPAS Y, MORIKITA H, TAYLOR A, 1995, THEORETICAL EVALUATION OF SIZING NONSPHERICAL PARTICLES USING DIFFRACTED LIGHT, MEASUREMENT SCIENCE AND TECHNOLOGY, Vol: 6, Pages: 717-726, ISSN: 0957-0233
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- Citations: 3
Hardalupas Y, Taylor AMKP, Whitelaw JH, et al., 1995, Influence of injection timing on in-cylinder fuel distribution in a honda VTEC-E engine, SAE Technical Papers, ISSN: 0148-7191
Measurements are presented of droplet characteristics and air velocity in the cylinder of a 0.36 litre four valve engine, equipped with an sohc VTEC-E valve train and port injection. The results show that injection at crank angles, θinj(s), when the inlet valve is open results in most of the liquid volume flux being in the form of droplets with Sauter mean diameter between 20 and 30 mm which strikes the sleeve up to about 2.5 cm below the exhaust valves, thus generating a locally rich cloud there. The amount of liquid phase gasoline passing through the plane 16 mm below the spark plug gap increases with θinj(s) up to 50 CA after intake TDC and this, together with the crank angle of droplet arrival and vapour generation, controls stratification of the gaseous fuel phase. The optimum injection time is when the fuel-rich cloud is generated so that the tumble vortex convects it to the spark plug at the time of ignition. © Copyright 1995 Society of Automotive Engineers, Inc.
Orfanoudakis NG, Taylor AMKP, 1995, Evaluation of an amplitude sizing anemometer and application to a pulverised coal burner, 2nd International Conference on Combustion Technologies for a Clean Environment, Publisher: TAYLOR & FRANCIS INC, Pages: 255-277, ISSN: 0010-2202
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- Citations: 6
Hardalupas Y, Moreira ALN, Taylor AMKP, et al., 1995, Evaluation of the phase Doppler technique for the measurement of bubbles, 2nd International Conference on Multiphase Flow, Publisher: ELSEVIER SCIENCE PUBL B V, Pages: 721-731
HARDALUPAS Y, HISHIDA K, MAEDA M, et al., 1994, SHADOW DOPPLER TECHNIQUE FOR SIZING PARTICLES OF ARBITRARY SHAPE, APPLIED OPTICS, Vol: 33, Pages: 8417-8426, ISSN: 0003-6935
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- Citations: 29
HARDALUPAS Y, TAYLOR A, 1994, PHASE VALIDATION CRITERIA OF SIZE MEASUREMENTS FOR THE PHASE DOPPLER TECHNIQUE, EXPERIMENTS IN FLUIDS, Vol: 17, Pages: 253-258, ISSN: 0723-4864
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- Citations: 10
HARDALUPAS Y, TAYLOR A, WHITELAW JH, 1994, MASS FLUX, MASS FRACTION AND CONCENTRATION OF LIQUID FUEL IN A SWIRL-STABILIZED FLAME, INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, Vol: 20, Pages: 233-259, ISSN: 0301-9322
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- Citations: 24
Posylkin M, Taylor AMKP, Vannobel F, et al., 1994, Fuel droplets inside a firing spark-ignition engine, ISSN: 0148-7191
Experiments have been performed in one cylinder of a production two-valve engine under firing conditions and quantify the velocity, size and number density of droplets as a function of position, crank angle, injection timing, rotational speed, load and cooling water temperature. They were obtained with a phase-Doppler velocimeter with measurements ensembled in relation to an optical shaft encoder. The engine was also instrumented to provide pressure traces, air and fuel flow rates and temperatures. The injection timings included those with open and closed inlet valve. The results show that most of the droplets emerge in a comparatively small region of the inlet valve and that the characteristics of the spray are important mainly when injection takes place with the inlet valve open. Injection against a closed valve can lead to few droplets when the injection takes place many crank-angle degrees before valve opening and to large droplets when there is insufficient time for evaporation but sufficient for the formation of liquid films on the surfaces of the port/valve assembly. Increase in the speed of the engine led to faster and larger droplets as the time for evaporation was reduced. The number of droplets increased with manifold pressure but the droplet sizes were little affected. The effect of the temperature of the cooling water was small. © Copyright 1994 Society of Automotive Engineers, Inc.
TAYLOR A, 1994, 2-PHASE FLOW MEASUREMENTS, Summer School on Optical Diagnostics for Flow Processes, Publisher: PLENUM PRESS DIV PLENUM PUBLISHING CORP, Pages: 205-228
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- Citations: 2
HARDALUPAS Y, TAYLOR A, WHITELAW JH, 1992, PARTICLE DISPERSION IN A VERTICAL ROUND SUDDEN-EXPANSION FLOW, PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, Vol: 341, Pages: 411-442, ISSN: 0962-8428
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- Citations: 54
ORFANOUDAKIS NG, TAYLOR A, 1992, THE EFFECT OF PARTICLE-SHAPE ON THE AMPLITUDE OF SCATTERED-LIGHT FOR A SIZING INSTRUMENT, PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION, Vol: 9, Pages: 223-230, ISSN: 0934-0866
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- Citations: 12
MASTORAKOS E, TAYLOR A, WHITELAW JH, 1992, EXTINCTION AND TEMPERATURE CHARACTERISTICS OF TURBULENT COUNTERFLOW DIFFUSION FLAMES WITH PARTIAL PREMIXING, COMBUSTION AND FLAME, Vol: 91, Pages: 40-54, ISSN: 0010-2180
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- Citations: 71
MASTORAKOS E, TAYLOR A, WHITELAW JH, 1992, SCALAR DISSIPATION RATE AT THE EXTINCTION OF TURBULENT COUNTERFLOW NONPREMIXED FLAMES, COMBUSTION AND FLAME, Vol: 91, Pages: 55-64, ISSN: 0010-2180
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- Citations: 38
HARDALUPAS Y, TAYLOR A, WHITELAW JH, 1992, CHARACTERISTICS OF THE SPRAY FROM A DIESEL INJECTOR, INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, Vol: 18, Pages: 159-179, ISSN: 0301-9322
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- Citations: 27
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