The boiling process is an efficient and effective heat transfer mode. Generally, different parameters such as temperature, pressure, external forces, etc., amend the pool boiling heat transfer (PBHT) rate. The present article uses molecular dynamics (MD) simulation to study the efficacy of different external forces(EFs) and heat fluxes (HFs) on the atomic and PBHT of water/Fe nanofluid (NF) flow. This study is performed in a microchannel (MC) with Fe-walls. The atomic behavior of the simulated structure is examined using the change in maximum temperature (T), maximum velocity(V), and maximum density(D), and the PBHT is studied by the phase change time (PCT) and HF. Results show that the maximum values of T, V, and D increase with increasing the EF and HF. Numerically, with increasing EF from 0.001 to 0.005 eV/Å, the maximum D, maximum V, and maximum T increase from 0.033 atom/ų, 0.038 Å/fs, and 789 K to 0.034 atom/ų, 0.039 Å/fs, and 900 K, respectively. Also, the result appears that the HF increases by increasing the applied EF, and the PCT reduces from 0.33 to 0.32 ns. So, the PBHT in the NF improves with increasing EF. On the other hand, the increase in external HF led to a reduction in the PCT (from 0.33 to 0.21 ns).

沸腾过程是一种高效、有效的传热方式。通常，温度、压力、外力等不同的参数会修正池沸腾传热 (PBHT) 速率。本文使用分子动力学 (MD) 模拟来研究不同外力 (EFs) 和热通量 (HFs) 对水/Fe 纳米流体 (NF) 流动的原子和 PBHT 的影响。本研究在具有铁壁的微通道 (MC) 中进行。使用最高温度（T）、最大速度（V）和最大密度（D）的变化来检查模拟结构的原子行为，并通过相变时间（PCT）和HF来研究PBHT。结果表明，T、V和D的最大值随着EF和HF的增加而增加。在数值上，随着 EF 从 0.001 增加到 0.005 eV/Å，最大 D、最大 V、³、 0.038 Å/fs 和 789 K 至 0.034 atom/Å ³、 0.039 Å/fs 和 900 K 分别。此外，结果显示 HF 通过增加应用的 EF 增加，PCT 从 0.33 降低到 0.32 ns。因此，NF 中的 PBHT 随着 EF 的增加而提高。另一方面，外部 HF 的增加导致 PCT 的降低（从 0.33 到 0.21 ns）。