Research Initiation: Transition To Turbulence In Models Of Breathing

研究启动：呼吸模型向湍流的转变

• 批准号: 9010518
• 负责人: Robert Peattie
• 金额: $ 7.4万
• 依托单位: Tulane University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-08-15 至 1993-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9010518&HistoricalAwards=false
• 关键词: Research; Initiation; Transition; Turbulence; Models

The eventual goal of this project is to describe the flow of gases through the lung. The specific objective of the proposed research is to characterize experimentally the axial and secondary flows in a model of bifurcating tubes that is dynamically similar to the human airways. The flows will be determined using laser-Doppler velocimetry at frequencies of normal breathing and also at frequencies used for high-frequency ventilation. This basic engineering research is an important first step toward a comprehensive description of flows in the entire lung. Such a description will lead to improved basic understanding, and eventually should also result in improved diagnostic and therapeutic procedures.

这个项目的最终目标是描述气体通过肺部的流动。这项研究的具体目标是在实验上表征动态类似于人类呼吸道的分叉管模型中的轴向和二次流。在正常呼吸频率和高频换气频率下，将使用激光多普勒测速仪来确定流量。这项基础工程研究是全面描述整个肺内流动的重要第一步。这样的描述将导致改善基本的理解，并最终也应该导致改善的诊断和治疗程序。