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环境适应性试验中试件表面结露行为的CFD预测

曹宗宝 文磊 金莹 王铭辉 杨斌 孙冬柏

北京科技大学学报2013,Vol.35Issue(2):207-215,9.
北京科技大学学报2013,Vol.35Issue(2):207-215,9.

环境适应性试验中试件表面结露行为的CFD预测

CFD prediction of dewing behavior on specimens in weathering test

曹宗宝 1文磊 1金莹 1王铭辉 1杨斌 1孙冬柏1

作者信息

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摘要

Abstract

Dewing behavior on specimens during warming and wetting processes in a weathering test chamber was predicted by computational fluid dynamics (CFD), and corresponding experiments were performed for validation. The effects of specimen size and materials on the dewing behavior were examined. The results show distinct size effect and material effect on the time of wetness (TOW) in the weathering test of engineering materials/components, indicating that these two effects should be emphatically taken into account in evaluating the safety of materials/components. Through deliberating and optimized modeling, good agreement between numerical simulation results and test data was achieved, which demonstrates that numerical simulation can be conducted to predict the heat transfer behavior and water condensation tendency on engineering components in weathering test.

关键词

环境适应性/计算流体动力学(CFD)/结露/尺寸效应/材质效应

Key words

weathering test/ computational fluid dynamics (CFD)/ dewing/ size effect/ material effect

分类

矿业与冶金

引用本文复制引用

曹宗宝,文磊,金莹,王铭辉,杨斌,孙冬柏..环境适应性试验中试件表面结露行为的CFD预测[J].北京科技大学学报,2013,35(2):207-215,9.

基金项目

教育部新世纪优秀人才支持计划资助项目(NCET-10-0224) (NCET-10-0224)

中央高校基本科研业务费专项(FRF-TP-10-005B) (FRF-TP-10-005B)

"重大工程材料服役安全研究评价设施"预研项目(YYXM-1412-0001) (YYXM-1412-0001)

北京科技大学学报

OA北大核心CSCDCSTPCD

2095-9389

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