声学共振器在气体粘度实验研究中的应用

It's the direction that the technologies of acoustics, optics, electrics and etc are used to measure the thermophysical properties of fluids. The purpose of this research is, on the basis of the experimental system improved, to carry out the research in sound speed measurement and Helmholtz acoustic viscometer. And then, the urgent experimental data of viscosity and sound speed of some working fluids could be obtained with new apparatuses. Finally, we plan to carry out the molecular dynamic simulation of thermophysical properties of fluids. At present, a new thermophysical properties measurement system in advance stage has been developed, an acoustic resonator to measure sound speed has been developed, and the sound speed of HFC152a, HFC143a, and HFC152a/HCFC22 has been measured, a new Helmholtz acoustic viscometer has been fabricated and tested, a new method to determine the intermolecular potential parameters has been provided and developed. The parallel molecular dynamic simulation in the cluster of workstations has been carried out, and the standard to estimate the efficiency of algorithms has been recommended.

通过对Helmholtz声学共振器测量粘度原理的深入研究，提出比较完善的实验计算模型，并兄瞥龈呔鹊纳д扯燃啤Ｍ崩蒙д扯燃贫猿＜评浼恋钠嗾扯燃疤烊黄⒚浩绕宓恼扯冉胁饬浚夜茉础⒍盎さ攘煊蛱峁┮恍┘毙璧母呔鹊幕∈荨Ｔ谄逭扯仁笛檠芯康幕∩希岢鲆恍┛梢杂糜诠こ淌导始扑愕恼扯裙亓健