Numerical Methods for Microscale and Nanoscale Multiphase Flow in General Geometries

一般几何中微尺度和纳米尺度多相流的数值方法

• 批准号: 0108672
• 负责人: Mark Sussman
• 金额: $ 10万
• 依托单位: Florida State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-01 至 2005-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0108672&HistoricalAwards=false
• 关键词: Numerical; Methods; Microscale; Nanoscale; Multiphase

The research is for the development of mathematical and numerical models for the full numerical simulation of jetting phenomena. The principal investigators develop new mathematical and numerical models for phase change, vapor bubble formation, vapor bubble collapse, and "explosive evaporation." New numerical methods for including compressibility in low speed flow are being developed. The resulting models are cast in an adaptive mesh framework in order to gain in CPU runtime and memory efficiency.This research program, the numerical simulation of jetting devices, unravels basic physical mechanisms underlying the jetting processes. This leads to improvement in design of microscale jetting devices. The simulation substantially reduces the design cycle period of such devices as ink-jet printers, soldering, and the application of DNA strands.

研究是为了发展的数学和数值模型，充分数值模拟喷射现象。 主要研究人员开发新的数学和数值模型的相变，蒸汽泡的形成，蒸汽泡崩溃，和“爆炸性蒸发。”“新的数值方法，包括压缩性在低速流动正在开发中。 为了提高CPU运行时间和内存效率，将得到的模型转换为自适应网格框架。本研究项目--喷射装置的数值模拟，揭示了喷射过程的基本物理机制。 这导致改进微尺度喷射装置的设计。 该模拟大大缩短了喷墨打印机、焊接和DNA链应用等设备的设计周期。