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Combined effects of high energy ignition and tumble enhancement on performance of lean combustion for GDI engine

期刊: EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2021; 129 ()

Lean combustion can greatly improve the thermal efficiency of gasoline engine. Increasing ignition energy and tumble level can effectively expand its ......

Quantitative 1-D LIBS measurements of fuel concentration in natural gas jets at high ambient pressure

期刊: EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2021; 126 ()

Fuel concentration information is critical to the development of high-efficiency combustion system of directinjection natural gas engines. In this stu......

Influence of hydrodynamic interactions among multiple bubbles on convective heat transfer in nucleate boiling

期刊: EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2021; 128 ()

To clear the effects of the hydrodynamic interactions among neighboring vapor bubbles on the saturated pool boiling heat transfer, artificial nucleati......

Formation number and pinch-off signals of disc vortex ring based on a Lagrangian analysis

期刊: EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2021; 129 ()

As one fundamental flow structure, the vortex ring behind an impulsively starting disc can vividly characterize the vortex structure around the flappi......

Experimental investigation on gas-liquid two-phase flow distribution characteristics in parallel multiple channels

期刊: EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2021; 127 ()

The maldistribution in the parallel multiple channels commonly leads to a reduction in the efficiency of heat exchangers and even causes the equipment......

Experimental study on the interfacial heat transfer of sessile droplet evaporation using temperature-sensitive paint

期刊: EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2021; 128 ()

The present work is aimed at analyzing changes in the interfacial temperature distribution and interfacial heat flux distribution during sessile dropl......

Mechanisms of SWBLI control by using a surface arc plasma actuator array

期刊: EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2021; 128 ()

Mechanisms for controlling the shock wave boundary layer interaction (SWBLI) by a plasma actuator array are investigated by two experiments. Low-frequ......

The flammability limits and explosion behaviours of hydrogen-enriched methane-air mixtures

期刊: EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2021; 126 ()

The effects of hydrogen(H2) on the macroscopic explosion parameters and microscopic chemical kinetics of methane(CH4)-air mixtures were investigated. ......

Evaporation characteristics and heat transfer enhancement of sessile droplets under non-uniform electric field

期刊: EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2021; 126 ()

Electrohydrodynamic (EHD) enhancement of water droplet evaporation by non-uniform electric field and the subsequent dynamic characteristics were exper......

Experimental study on vaporous cavitation of R134a in micron clearance

期刊: EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2021; 129 ()

Cavitation is likely to occur in micron clearance, which affects the efficiency and reliability of the fluid machinery. Due to the confinement effect ......

Experimental study on liquid-liquid two-phase flow patterns and plug hydrodynamics in a small channel

期刊: EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2021; 129 ()

The flow patterns and the plug hydrodynamics of liquid-liquid two-phase flow in a small circular channel were experimentally investigated. Five distin......

Characterizing combustion of a hybrid rocket using laser absorption spectroscopy

期刊: EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2021; 127 ()

The combustion of an oxygen/paraffin hybrid rocket motor was experimentally characterized. Firing tests were conducted for different oxidizer mass flu......

An experimental study on the improvements in the film cooling performance by an upstream micro-vortex generator

期刊: EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2021; 127 ()

In this study, the placement of a micro-vortex generator (VG) upstream of the film cooling hole is proposed to improve the film cooling performance. T......

Accuracy improvement for directional polarized spectral emissivity measurement in the wavelength range of 4?20?m

期刊: EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2021; 125 ()

A new directional polarized spectral emissivity measurement apparatus with the wavelength range of 4?20 ?m was established to promote the development ......

Experimental investigation and a mechanical model of critical heat flux in a narrow rectangular channel

期刊: EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2021; 128 ()

CHF is the maximal limit of heat flux in boiling heat transfer, therefore, it is a crucial parameter that has a fundamental impact on the security and......

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