Simulation and Prediction of the Evaporation Process of Ethanol Droplets Impacting High Temperature Wall

MA Xiaojing; ZHOU Xin; TUSONGJIANG Kari; XU Hanwen

doi:10.21656/1000-0887.430139

Volume 44 Issue 5

May 2023

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MA Xiaojing, ZHOU Xin, TUSONGJIANG Kari, XU Hanwen. Simulation and Prediction of the Evaporation Process of Ethanol Droplets Impacting High Temperature Wall[J]. Applied Mathematics and Mechanics, 2023, 44(5): 535-542. doi: 10.21656/1000-0887.430139

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Simulation and Prediction of the Evaporation Process of Ethanol Droplets Impacting High Temperature Wall

doi: 10.21656/1000-0887.430139

School of Electrical Engineering, Xinjiang University, Urumqi 830047, P.R.China

Received Date: 2022-04-20
Rev Recd Date: 2022-07-11
Publish Date: 2023-05-01

Abstract

Abstract

The coupled level set and volume of fluid (CLSVOF) method was used to establish a numerical model for ethanol droplets impacting high temperature wall through introduction of the dynamic contact angle to describe the wetting characteristics of the wall surface. The boiling and evaporation process of ethanol droplets impacting high temperature wall was studied and compared with the experimental data. The results show that, at a fixed droplet temperature, the higher the wall temperature is, the stronger the hydrophilicity will be, and the faster the impacting velocity of ethanol droplet is, the earlier the droplet will boil and the shorter the evaporation time will be. Based on this, a prediction model for droplet evaporation was established with the machine learning algorithm, to study the change of the evaporation residual with time after the ethanol droplet collision with the high temperature wall. The optimal prediction model was selected through comparison of the prediction results of different machine learning algorithms with the simulation results.
- coupled level set and volume of fluid method,
- dynamic contact angle,
- explosive evaporation,
- machine learning

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References(17)

References

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