Journal of Shanghai University(Natural Science Edition) ›› 2022, Vol. 28 ›› Issue (5): 841-856.doi: 10.12066/j.issn.1007-2861.2440

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Overview of recent developments in thermal vibrational convection

GUO Xili, WU Jianzhao, WANG Bofu, CHONG Kaileong, ZHOU Quan(), LIU Yulu   

  1. Shanghai Institute of Applied Mathematics and Mechanics, School of Mechanics and Engineering Science, Shanghai University, Shanghai 200072, China
  • Received:2022-08-01 Online:2022-10-30 Published:2022-11-12
  • Contact: ZHOU Quan E-mail:qzhou@shu.edu.cn

Abstract:

External vibrational influence is inevitable in engineering applications and in nature. When vibration acts on a fluid system subjected to a temperature gradient, time-averaged vibration-induced fluctuating flows induce streaming convective flows, which transport matter and heat. This type of vibration-induced time-averaged convective flow is called thermal vibrational convection. Vibration with unsteady periodic properties provides a new mechanism for generating convective flows. The application of thermal vibrational convection not only achieves heat and mass transfer in micro gravity but also introduces a new approach to actively control the heat transfer of buoyancy-driven convection. This paper presents an overview of recent advances in thermal vibrational convection in micro gravity under terrestrial conditions and the vibrational effects on multi phase flows. Finally, the outlook of thermal vibrational convection is provided.

Key words: thermal vibration convection, heat transport, flow structure

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