Heat Transfer and Solidification In Non-Equilibrium Droplet-Based Manufacturing of Composite Materials

摘要CTS- 9614653 主要研究人员建议研究基于液滴的复合材料制造中涉及的运输过程。要研究的配置包括单流的单尺寸液滴撞击在基板上，CO2激光诱导的再熔化的基板在液滴的影响位置，和共沉积的液体/液体或液体/固体液滴。 要解决的基本问题包括液滴的影响，蔓延，凝固顺序，和孔隙率的发展。将使用单一尺寸液滴沉积装置进行相关参数的可视化和测量。 将开发数值模型来模拟沉积过程。

ABSTRACT CTS- 9614653 The principal investigators propose to study the transport process involved in droplet-based manufacturing of composite materials. The configurations to be investigated include a single stream of mono-size droplets impinging on a substrate, CO2 laser induced re-melt of the substrate at the droplet impact location, and co-deposition of liquid/liquid or liquid/solid droplets. Basic issues to be addressed include droplet impact, spreading, solidification sequence, and porosity development. Visualization and measurement of relevant parameters will be conducted using a mono-size droplet deposition setup. Numerical models will be developed to simulate the deposition process.