CFD SIMULATION OF WATER HAMMER INDUCED BY CONDENSATION USING AN IMPROVED PHASE CHANGE MODEL

被引：0

作者：

Peng, Li ^{[1
]}

Tu, Ruiyang ^{[2
]}

Lin, Daping ^{[1
]}

Xiong, Feng ^{[2
]}

Zhao, Jiaming ^{[1
]}

Long, Xiaoxin ^{[2
]}

Chen, Zhengyu ^{[2
]}

Zhang, Zihao ^{[2
]}

Guo, Wentao ^{[2
]}

Wang, Shengfei ^{[2
]}

机构：

[1] China Nucl Power Engn Co Ltd, Beijing, Peoples R China

[2] North China Elect Power Univ, Beijing, Peoples R China

来源：

PROCEEDINGS OF 2024 31ST INTERNATIONAL CONFERENCE ON NUCLEAR ENGINEERING, VOL 7, ICONE31 2024 | 2024年

关键词：

CIWH; PMK-2; UDF; direct contact condensation; hybrid heat transfer coefficient (HTC) model; Lee model; DIRECT-CONTACT CONDENSATION; VOLUME;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A computational fluid dynamics (CFD) based approach using FLUENT is applied to investigate the phenomenon of condensation-induced water hammer (CIWH) caused by direct contact condensation. In these simulations, the two-phase interface is explicitly tracked using the volume of fluid (VOF) method, and a hybrid heat transfer coefficient (HTC) model based on surface renewal theory is employed for interface heat transfer. The HTC model is implemented through user-defined functions (UDFs). The simulation results are compared with experimental data obtained from the PMK-2 facility of the VVER-440/312-type nuclear power plant in Budapest, Hungary. The results demonstrate that the model aligns well with the measured temperature field, as well as the timing and magnitude of pressure peaks. This CFD approach can be utilized for prediction and prevention of CIWH.

引用

页数：7

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