Evaporation Characteristics of a Single Droplet in Laser Treatment of Port Wine Stain in Conjunction with Cryogen Spray Cooling

Zhifu, 周致富 Zhou; Hui, 辛慧 Xin; Bin, 陈斌 Chen; Guoxiang, 王国祥 Wang

doi:10.3788/cjl20083506.0952

Cited by 2 publications

(3 citation statements)

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“…The model assumptions are as follows: (1) the droplet is spherical; (2) the droplet temperature is uniform; (3) the vapor phase at the droplet surface is quasi-steady; (4) the gas soluble, the chemical reaction between droplet and ambient gas, and the droplet decomposition are ignored; (5)…”

Section: Mathematical Modelmentioning

confidence: 99%

“…If a relative movement exists between the droplet and the ambient gas, the droplet velocity variation can be calculated by the following equation. Since the droplet diameter is small, the effect of gravity can be ignored [4,5]. Energy Equation.…”

Section: Mathematical Modelmentioning

confidence: 99%

“…The evaporation characteristics of a moving droplet have been studied by many scholars [4][5][6], the droplet energy, momentum and mass equations were established to describe the droplet motion and evaporation process. The results were mainly focused on the variations of droplet temperature, velocity and diameter with time, while the droplet movement distance, as well as the droplet motion feature has not been described detailedly.…”

Section: Introductionmentioning

confidence: 99%

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Motion and Evaporation Characteristics of Ethanol Droplet in High Temperature Nitrogen Environment

Liu

2013

AMM

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In order to achieve high efficiency of new fuel engine, a mathematical model based on mass, momentum and energy equations was developed to describe the motion and evaporation characteristics of a single ethanol droplet in high temperature nitrogen environment. By comparing the numerical results with experimental data, the validity of model was confirmed. The relationships of droplet temperature, velocity, size with time and movement distance under different ambient pressures were analyzed. The calculated results indicate that with a higher ambient pressure, the droplet temperature is higher, the droplet velocity declines faster, the movement distance is shorter; the evaporation rate is slower, and the droplet life is longer. Within the distance where the droplet velocity continuous variation, the droplet temperature rises gradually, the droplet size expands slightly, and with the increase of ambient pressure, the droplet expansion is more significant.

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Section: Mathematical Modelmentioning

confidence: 99%

Section: Mathematical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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