Professor guo published the paper " a novel concept for convective heat transfer enhancement " in 1998 . in the paper , he brings out a novel concept of heat transfer enhancement , the field synergy principle 过增元院士于1998年发表了“ anovelconceptforconvectiveheattransferenhancement ”一文，提出了对流换热过程中速度场和热流场之间的场协同问题。
Single - phase forced convective heat transfer inside tube is an important research realm in the technology of heat transfer augmentation . it plays an important part in saving energy and decreasing the volume and weight of heat exchanger 管内单相强迫对流换热是强化传热技术的一个重要研究领域，在降低换热器的能源消耗，减小换热器体积和重量方面起着十分重要的作用。
Firstly , under the condition of constant viscous dissipation , the field coordination equation was induced for steady laminar convective heat transfer by the conditional variational principle based on the extremum principle of heat transport potential capacity dissipation 首先在粘性耗散一定的条件下以热量传递势容耗散取得极值为优化目标，运用变分方法导出了层流对流换热场协同方程。
Secondly , the relation between nusselt number and the local time - averaged velocity and temperature fields of turbulent convection was theoretically induced , which expands the field - coordinated enhancement principle to turbulent convective heat transfer 然后，在理论上导出了紊流对流换热的整体换热性能与局域时均速度场和时均温度场的一般关系式，将对流换热的场协同强化原则扩展至湍流换热。
Fist we resarch local wall temperature ouside and inside of tube , local fluid temperature inside and outside of tube , local heat flux inside and outside of tube , local coefficient of convective heat transfer inside and ouside of tube along the tube axial direction 首先研究在这两种情况下管内(外)壁温、管内(外)流温、管内(外)壁面局部热流密度、管内(外)局部对流换热系数沿管子轴向的变化。
The field harmony theory was used to analyze convection heat transfer with heat sources . the intensity of the heat source was related with not only the velocity and the fluid properties but also the harmonious degree between the velocity and heat flux fields 场协同理论把对流换比拟为有内热源的导热问题，认为对流换热的强化不仅取决于流体的流动和流体的物性，还取决于流场与温度场的协同关系。
For fin system , the spatial distributions of three defined physical quantities , filling ratio , extend measure and stretch direction , are described for general fin structures . based on which the heat transfer between fin system and fluid is modeled mathematically 对于翅片强化对流换热，提出用填充率、扩展量和伸展方向这三个物理量在空间内的分布来描述翅片系统的一般结构，并建立了相应的热量输运模型。
