This work takes two particles as an example to study the effect of distance and angle between two particles on the average Nusselt number Nu, average heat transfer rate η_b, local Nusselt number Nu_φ, and local heat transfer rate η_aφ. It was found that the variation trend of Nu and Nu_φ in supercritical water is the same as that in constant property flow, thus indicating that the variation trend of heat transfer between particles and fluid in supercritical water is the same as in constant property flow. The change in physical properties of supercritical water does not have any special effect on the variation trend of heat transfer. The heat transfer is mainly affected by the overlap of temperature field and the overlap of flow field. However, the results of η_b and η_aφ indicate that the variation trend of heat transfer rate is affected by temperature gradient changes and physical property changes.

本文以两个粒子为例，研究了两个粒子之间的距离和角度对平均努塞尔数Nu、平均传热率η _b、局部努塞尔数Nu _φ和局部传热率η _{aφ 的影响}。结果发现，变化趋势，怒江和怒江_φ超临界水中与恒流态相同，说明超临界水中颗粒与流体之间的传热变化趋势与恒流态相同。超临界水物理性质的变化对传热变化趋势没有任何特殊影响。传热主要受温度场重叠和流场重叠的影响。然而，η _b和η _aφ的结果表明，传热速率的变化趋势受温度梯度变化和物性变化的影响。