对流传热区局部对流传热强度参数及其与机械能耗散关系研究综述

Review on the Studies of the Parameters of Local Convective Heat Transfer Intensity and Their Relationship with Local Mechanical Energy Dissipation

  • 摘要: 对流传热是与工业、环境、动植物生命、宇宙等息息相关的——热量传输过程。就工业生产而言,对流传热过程消耗了大量高品位能源,造成了大量的碳排量,从而研究对流传热强化对节能减排非常重要。对流传热过程机械能耗散在流动局部进行,而对流传热强度只有在壁面上存在,从而需一局部对流传热强度的描述参数以便和局部机械能耗散对应,这一对应是对流传热强化的基础。论文对现有类似对流传热区局部对流传热强度的描述参数及其与机械能耗散的关系进行了综述,在此基础上提出对流传热区局部对流传热强度的描述参数及其与机械能耗散的关系的研究思路。

     

    Abstract: Convective heat transfer is one of heat transfer processes closely related with industrial, environment, animal and plant life and universe. For industrial convective heat transfer processes consumed great amount high level energy, and produced great amount carbon dioxide. Thus enhancement of convective heat transfer is of great important. The mechanical energy dissipation in convective heat transfer is carried out locally, but the convective heat transfer intensity is defined on the wall surface, thus a local parameter that can describe the local heat transfer intensity inside the flow region is in great need for corresponding local mechanical energy dissipation, which might be the base theory of convective heat transfer enhancement. This paper reviewed the available similar local parameters described the local convective heat transfer intensity and their relationship with local mechanical energy dissipation. Based on the review, a research idea of studying on the parameters of local convective heat transfer intensity and their relationship with local mechanical energy dissipation is proposed.

     

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