Evaporation and Fluid Flow in Thin Film Regions

该建议是一个实验和分析研究，以提高蒸发机制的理解和高热流条件下的薄膜中的流体流动和传热的个别力的影响。 PI将开发薄膜蒸发的分析模型，包括热毛细力，表面张力，摩擦，润湿和分离压力。 他还将开发一个实验系统，以测量高热流条件下的膜厚度，界面速度和膜轮廓。 静电场对分离压力的影响和表面微结构对薄膜蒸发的影响也将得到解决。 研究结果将有助于推进微通道蒸发流发生在各种新兴技术中的应用。

The proposal is for an experimental and analytical investigation to improve the understanding of evaporation mechanisms and the effects of individual forces on fluid flow and heat transfer in thin films under high heat flux conditions. The PI will develop an analytical model for thin film evaporation that includes thermocapillary force, surface tension, friction, wetting, and disjoining pressure. He will also develop an experimental system to measure film thickness, interface velocity and film profile under high heat flux conditions. The effects of electrostatic fields on the disjoining pressure and the effects of surface microstructures on the thin film evaporation will also be addressed. The results would help advance applications in a variety of emerging technologies in which microchannel evaporative flows occur.