Research Initiation: Transition To Turbulence In Models Of Breathing

这个项目的最终目标是描述气体通过肺部的流动。提出的研究的具体目标是实验表征轴流和二次流的分岔管模型，是动态类似于人类气道。将使用激光多普勒测速仪在正常呼吸频率和用于高频通气的频率下确定流量。这项基础工程研究是全面描述整个肺部血流的重要的第一步。这样的描述将导致提高基本认识，并最终也将导致改进的诊断和治疗程序。

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.