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<p>Consideration has been given to the procedure for determining the rate of evaporation of single droplets and their cluster precipitating through a high-temperature zone in a gravitational field with account for a convective ascending gas flow. Results are presented of an experimental investigation of the rate of droplets’ evaporation in a convective flow: approximation dependences for temperature distribution through the heater height have been obtained for various values of its power output. A physicomathematical model has been developed for free convection inside an open cylindrical tube and gravitational precipitation of droplets in an ascending convective flow. An analysis has been made of the effects of the droplets’ size and power magnitude of the heat energy supplied to the wall on droplet temperature and mass loss.</p>

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Dynamics and Evaporation of Droplets in an Ascending Convective Flow of Heated Air

  • 期刊论文

  • 发表日期：

    2025年3月1日

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  • O. V. Matvienko,
  • V. A. Arkhipov,
  • V. I. Romandin,
  • O. I. Daneiko,
  • S. A. Basalaev,
  • N. N. Zolotorev

摘要

Consideration has been given to the procedure for determining the rate of evaporation of single droplets and their cluster precipitating through a high-temperature zone in a gravitational field with account for a convective ascending gas flow. Results are presented of an experimental investigation of the rate of droplets’ evaporation in a convective flow: approximation dependences for temperature distribution through the heater height have been obtained for various values of its power output. A physicomathematical model has been developed for free convection inside an open cylindrical tube and gravitational precipitation of droplets in an ascending convective flow. An analysis has been made of the effects of the droplets’ size and power magnitude of the heat energy supplied to the wall on droplet temperature and mass loss.