ABSTRACT

In the paper, an experimental work examining the impact of βGa₂O₃/water nanofluid turbulent flow through a microscale backward-facing step has been conducted. The Reynolds number range of 5,000 to 10,000 has been applied. Numerical simulation was conducted to validate the current experimental study. The results indicated a significant increase in the Nusselt number compared to the base fluid. However, increasing the volume fraction led to an increase in the friction factor. Moreover, the pumping power has been increased due to the pressure drop increases. As a result, performance evaluation criteria have been established for evaluating the thermal performance of βGa₂O₃/water.

摘要

在该论文中，已经进行了一项实验工作，用于检查β Ga ₂ O ₃ /水纳米流体湍流通过微尺度后向台阶的影响。已应用 5,000 至 10,000 的雷诺数范围。进行了数值模拟以验证当前的实验研究。结果表明，与基液相比，努塞尔数显着增加。然而，增加体积分数导致摩擦因数增加。此外，泵送功率由于压降增加而增加。因此，已经建立了用于评估βGa 2 O 3 /水的热性能_的性能_评估标准。