Development of an Innovative Divertor Cooling Method Utilizing Self-forming Flow Field in Multi-elbow Piping

开发利用多弯头管道中自形成流场的创新偏流器冷却方法

• 批准号: 24656555
• 负责人: HASHIZUME Hidetoshi
• 金额: $ 2.16万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-24656555/
• 关键词: ダイバータ冷却; エルボ配管; 旋回流; 流れの可視化

In this study, characteristics of swirling flows induced downstream of multi-elbow piping layouts were minutely analyzed by means of flow visualization experiments, and potentially suitable piping layouts were selected for divertor cooling as an alternative to the flow field induced by a swirl tube. First, the influence of curvature radius of the elbow was estimated by using a dual-elbow layout in which two elbows were connected three-dimensionally. And it was found that the shorter the curvature radius was, the stronger the swirling flow became. Subsequently, five three-elbow layouts comprising three short elbows were tested, and a 3D-3D layout, in which the first and second elbows and the second and third elbows were connected three-dimensionally, respectively, gave the most strong swirling flow. On the other hand, turbulent statistics such as turbulent energy became largest in the dual elbow layout. These layout will be tested in terms of heat transfer in the next step.

本文通过流动显示实验，详细分析了多弯头管道布置下游诱导旋流的特性，并选择了可能适合偏滤器冷却的管道布置，作为旋流管诱导流场的替代方案。首先，通过使用两个弯头三维连接的双弯头布局来估计手肘的曲率半径的影响。结果表明，曲率半径越小，旋流越强。随后，测试了包括三个短弯头的五个三弯头布局，并且其中第一和第二弯头以及第二和第三弯头分别三维连接的3D-3D布局给出了最强的旋流。另一方面，湍流统计，如湍流能量成为最大的双肘布局。这些布局将在下一步的传热方面进行测试。

项目成果

FEASIBILITY STUDY OF APPLICATION OF A SELF-FORMED FLOW FIELD DOWNSTREAM OF ELBOWS TO DIVERTOR COOLING

弯头下游自形成流场应用于导流器冷却的可行性研究

• 发表时间: 2013
• 作者: Shoichi Kodate;Tatsuya Kubo;Shinji Ebara;Hidetoshi Hashizume
• 通讯作者: Hidetoshi Hashizume

連続三段エルボ配管下流で生じる旋回流の可視化計測とダイバータ冷却への適用可能性の検討

连续三级弯管下游发生旋流的目视测量及偏滤器冷却的适用性研究

• 发表时间: 2014
• 作者: 古舘翔一;江原真司;橋爪秀利
• 通讯作者: 橋爪秀利

Feasibility Study on Application of a Self-Formed Flow Field downstream of Elbows to Devertor Coooling

弯头下游自形成流场应用于变流器冷却的可行性研究

• 发表时间: 2013
• 作者: Shoichi Kodate;Tatsuya Kubo;Shinji Ebara;Hidetoshi Hashizume
• 通讯作者: Hidetoshi Hashizume

三段エルボ下流流動場の可視化計測及びダイバータ冷却への適用の検討

三级弯管下游流场的可视化测量及其在偏滤器冷却中的应用思考

• 发表时间: 2013
• 作者: 古舘翔一;江原真司;橋爪秀利
• 通讯作者: 橋爪秀利

エルボ下流自己形成流動場のダイバータ冷却への適用可能性の評価I

弯管下游自形成流场对偏滤器冷却的适用性评价Ⅰ

• 发表时间: 2012
• 作者: 古舘翔一;久保達也;江原真司;橋爪秀利
• 通讯作者: 橋爪秀利