Effect of Heaving on Forces Acting on Bubbles in Heating Surface

HONG Gang; YANG Yanhua; LIU Xiangfeng; YAN Xiao; HUANG Yanping; CHEN Bingde

Mar. 2025

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HONG Gang, YANG Yanhua, LIU Xiangfeng, YAN Xiao, HUANG Yanping, CHEN Bingde. Effect of Heaving on Forces Acting on Bubbles in Heating Surface[J]. Nuclear Power Engineering, 2011, 32(3): 87-91.

Citation:

HONG Gang, YANG Yanhua, LIU Xiangfeng, YAN Xiao, HUANG Yanping, CHEN Bingde. Effect of Heaving on Forces Acting on Bubbles in Heating Surface[J]. Nuclear Power Engineering, 2011, 32(3): 87-91.

HONG Gang, YANG Yanhua, LIU Xiangfeng, YAN Xiao, HUANG Yanping, CHEN Bingde. Effect of Heaving on Forces Acting on Bubbles in Heating Surface[J]. Nuclear Power Engineering, 2011, 32(3): 87-91.

Citation:

HONG Gang, YANG Yanhua, LIU Xiangfeng, YAN Xiao, HUANG Yanping, CHEN Bingde. Effect of Heaving on Forces Acting on Bubbles in Heating Surface[J]. Nuclear Power Engineering, 2011, 32(3): 87-91.

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Effect of Heaving on Forces Acting on Bubbles in Heating Surface

1. School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China;
2. CNNC Key Laboratory on Nuclear Reactor Thermal Hydraulics Technology, Chengdu, 610041, China;
3. China International Engineering Consulting Corporation, Beijing, 100048, China

Received Date: 2010-02-02
Available Online: 2025-03-08

Abstract

Abstract

The effect of heaving on forces acting on bubbles in sub-cooled boiling flow has been analyzed.The buoyancy is directly affected by the heaving acceleration.And the flow rate fluctuation which is caused by the heaving acceleration imposes the forces acting on bubbles indirectly.The forces acting on bubbles under heaving and non-heaving condition have been computed and compared.The results show that heaving has less effect upon forced circulation than natural circulation.The influence of heaving upon natural circulation depends on flow rate fluctuation and the influence of heaving upon forced circulation depends on the weight of buoyancy in the balance of forces acting on bubble.Heaving influences the forces acting on bubbles,which may change the position of vapor bubble departure,hence affects the heat transfer in boiling flow.
- Heaving,
- Acceleration,
- Sub-cooled boiling,
- Forces on bubble