In this study, the laminar nanofluid flow in the microchannel with a discontinuous-boundary condition was investigated. Considering the slip condition, heat transfer and entropy generation were studied. Different layouts with the discontinuous-boundary condition (i.e. layouts A, B and C) were introduced and compared with the basic microchannel (microchannel with the continuous-boundary condition). Reynolds number and non-slip coefficient parameters on the effect of using discontinuous-boundary condition were discussed. The results revealed that the application of discontinuous-boundary condition affects the heat transfer as well as entropy generation so that the effects are more pronounced at higher Reynold number. By applying discontinuous-boundary condition, the heat transfer through the layouts of A, B and C was 34, 45 and 53% higher than the base microchannel. Simultaneously, the entropy generation through the layouts of A, B and C intensified by 31, 39 and 46%, respectively. The results proved that the applying slip condition has two positive effects as well as a negative effect. It enhanced the heat transfer and diminished the viscose entropy generation, but on the other hand, it intensified the thermal entropy generation.

在这项研究中，研究了具有不连续边界条件的微通道中的层流纳米流体流动。考虑滑移条件，研究了传热和熵的产生。介绍了具有不连续边界条件的不同布局（即布局A、B和C），并与基本微通道（具有连续边界条件的微通道）进行了比较。讨论了雷诺数和非滑移系数参数对使用不连续边界条件的影响。结果表明，不连续边界条件的应用会影响传热和熵的产生，因此在雷诺数较高时效果更明显。通过应用不连续边界条件，通过 A、B 和 C 布局的传热为 34，比基础微通道高 45% 和 53%。同时，通过 A、B 和 C 的布局产生的熵分别增强了 31%、39% 和 46%。结果证明，应用滑移条件有两个积极影响和一个消极影响。它增强了传热，减少了粘稠熵的产生，但另一方面，它加剧了热熵的产生。