Technology Development for Heat Transfer Enhancement in Natural-onvection Boundary Layers

自然对流边界层强化传热技术开发

• 批准号: 21560208
• 负责人: TSUJITO Shihiro
• 金额: $ 3.08万
• 依托单位: Nagoya Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21560208/
• 关键词: 自然対流; 伝熱促進; 境界層; 乱流; 層流; 共存対流

For natural-convection boundary layers from laminar toturbulence, the essential heat transfer characteristics have been explored with numerical analyses and experiments. Accordingly, it is found that the transition to turbulence is promoted by adding a mean flow in the direction to the gravity and high local heat transfer rates are maintained over the wide range of the boundary layer. Also, marked increases of local heat transfer rates originated from the generation of longitudinal vortex motions are observed by inserting split inclined plates into the boundary layer both for laminar and turbulence. Thus, the heat transfer enhancements of naturalconvection boundary layers are established.

对于从层流到湍流的自然对流边界层，通过数值分析和实验探索了基本的传热特性。因此，发现通过在重力方向上添加平均流来促进向湍流的转变，并且在边界层的宽范围内保持高的局部传热率。此外，通过将分裂倾斜板插入到层流和湍流的边界层中，观察到源自纵向涡流运动的产生的局部传热率的显着增加。因此，自然对流边界层的传热增强得以建立。

项目成果

Effects of free streamcam on thermallydriven boundary layers along a heated vertical plate

自由流凸轮对沿加热垂直板的热驱动边界层的影响

• 发表时间: 2010
• 作者: M. Z. Abedin and T;Tsuji
• 通讯作者: Tsuji

Direct Numerical Simulation for a Time-Developing Combined-Convection Boundary Layer along a Vertical Flat Plate

垂直平板随时间发展的组合对流边界层的直接数值模拟

• 发表时间: 2010
• 期刊: International Journal of Heat and Mass Transfer VOL.53
• 作者: M.Z.Abedin;T.Tsuji;Y Hattori
• 通讯作者: Y Hattori

平板列挿入による自然対流層流境界層の促進に関する数値解析

插入平板阵列促进自然对流层流边界层的数值分析

• 发表时间: 2010
• 作者: 今井良樹;青木和夫;赤堀匡俊;梶田欣,辻俊博
• 通讯作者: 梶田欣,辻俊博

Effects of freestream on thermally-driven boundary layers along a heated vertical plate

自由流对沿加热垂直板的热驱动边界层的影响

• 发表时间: 2010
• 作者: M.Z.Abedin;T;Tsuji
• 通讯作者: Tsuji

鉛直加熱平板に沿う水の共存対流境界層の直接数値解析

沿垂直加热板共存的水对流边界层的直接数值分析

• 发表时间: 2010
• 作者: M.Hirota;E.Mohri;H.Asano;H.Goto;モハマド・ジョイナル・アベデイン,辻俊博,浜館潤一
• 通讯作者: モハマド・ジョイナル・アベデイン,辻俊博,浜館潤一