Research on coupled oscillation of candle flame

Journal Information

J. Hefei Univ. Tech. (Nat. Sci.), Aug.2023, Vol.46 No.8: 1146-1152

DOI: 10.3969/j.issn.1003-5060.2023.08.022

Authors

FANG Lian $ ^{1} $, SONG Jiale $ ^{2} $, WANG Yaping $ ^{1} $, PAN Gang $ ^{1} $, SU Yiheng $ ^{2} $, LIN Tongtong $ ^{3} $

(1. Department of Basic Courses, Hefei University of Technology, Xuancheng 242000, China; 2. School of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, China; 3. School of Computer Science and Information Engineering, Hefei University of Technology, Hefei 230601, China)

Abstract and Keywords

Abstract: This paper studies the coupled oscillation of two groups of identical candle flames. The relationship between the coupled oscillation of candle flame and the factors such as distance and diameter is obtained by high speed camera and image processing with Origin software. By using MATLAB software and schlieren method, this paper discusses the effects of thermal radiation and thermal convection in the coupling of candles, and it is proved that thermal convection is the dominant factor for the coupled oscillation of candles. Based on the theory of vortex dynamics, the mechanism of coupled oscillation of candle flame is further explained, which provides a theoretical basis for the study of coupled oscillation of candle flame.

Keywords: candle flame; coupled oscillation; thermal radiation; thermal convection; theory of vortex dynamics

作者信息

方莲 $ ^{1} $，宋家乐 $ ^{2} $，王雅萍 $ ^{1} $，潘刚 $ ^{1} $，苏一恒 $ ^{2} $，林彤彤 $ ^{3} $

(1. 合肥工业大学基础部, 安徽宣城 242000; 2. 合肥工业大学土木与水利工程学院, 安徽合肥 230009; 3. 合肥工业大学计算机与信息学院, 安徽合肥 230601)

摘要和关键词

摘要: 文章研究了2组全同蜡烛火焰的耦合振荡情况。通过高速摄影机拍摄和、Origin软件图像处理，得到蜡烛耦合振荡情况与距离、直径等因素的关系；利用MATLAB软件仿真和纹影法，探讨热辐射、热对流在耦合中的作用，明确了热对流是蜡烛耦合振荡的主导因素；结合涡动力学理论，对蜡烛火焰耦合振荡的机理做进一步解释。该文为研究蜡烛火焰耦合振荡现象提供了一定的理论依据。

关键词: 蜡烛火焰；耦合振荡；热辐射；热对流；涡动力学理论

Funding

国家自然科学基金资助项目（21603049）；教育部产学合作协同育人资助项目（202102153067）

合肥工业大学学报(自然科学版)

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