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采用能量守恒的耗散粒子动力学方法(eDPD)对平行平板微通道内的电渗流动与换热问题进行了模拟,电势分布由Poisson-Boltzmann方程描述.获得了不同电动参数下的纯电渗速度及温度分布并分别与解析解及有限元方法对比以验证正确性及精度.进一步模拟了有压差驱动下纵向电场在壁面异质电势微通道内引起的电渗微混合与对流传热问题,研究结果表明纵向电场对通道内的流动与传热具有明显的影响,而压力梯度的增大会导致电渗作用被逐渐削弱.“,”Electroosmotic flow and heat transfer between two parallel plates microchannel are studied by energy-conserving Dissipative Particle Dynamics (eDPD),and the Poisson-Boltzmann function is used to describe the potential distributing.The velocity and temperature distribution of pure electroosmotic under different electrical parameters are compared with analytical solution and FEM solution respectively to validate the accurate and precise of the method.Furthermore,by applying an longitudinal electric field,the electroosmotic micro mixing and heat transfer in the microchannel with nonuniform zeta potential distributions along the wall are simulated and the influence of pressure gradient is taken into account.The results show that longitudinal electric field affects the stream field seriously and this effect decreases with the increase of pressure gradient.