A numerical scheme for the effects of vibration on nanofluid pool boiling heat transfer was developed. For this purpose, a horizontal flat vibrating heated surface was considered. To model this phase-change phenomenon, the Eulerian-Eulerian approach was employed accompanied by the Rensselaer Polytechnic Institute (RPI) model to estimate the boiling heat flux on a solid surface, based on transient simulation. The k-ε turbulence model was used for simulating the Reynolds stresses appearing in the averaged Navier Stokes equation. The effects of the amplitude and frequency of vibration, nanofluid concentration along with magnitude of the heat flux on pool boiling heat transfer characteristics including heat transfer coefficient (HTC), vapor volume fraction and nanofluid velocity were studied. New analytical correlations for analyzing the heat transfer coefficient and nanofluid velocity based on the wall superheat temperature, amplitude and frequency of vibration were also developed. Results showed that applying mechanical vibration increased the boiling curve slope and the heat transfer coefficient. As a consequence, an increase of up to 30.11% and 17.5% in the heat transfer rate was achieved at lower heat fluxes for higher amplitude and frequency of oscillations, respectively.

开发了振动对纳米流体池沸腾传热影响的数值方案。为此，考虑了水平平面振动加热表面。为了模拟这种相变现象，采用欧拉-欧拉方法和伦斯勒理工学院 (RPI) 模型，基于瞬态模拟来估计固体表面上的沸腾热通量。k- ε湍流模型用于模拟出现在平均 Navier Stokes 方程中的雷诺应力。研究了振动幅度和频率、纳米流体浓度以及热通量大小对池沸腾传热特性的影响，包括传热系数 (HTC)、蒸汽体积分数和纳米流体速度。还开发了基于壁面过热温度、振幅和振动频率来分析传热系数和纳米流体速度的新分析关联式。结果表明，施加机械振动增加了沸腾曲线斜率和传热系数。因此，增幅高达 30.11% 和 17。