Gas Flow in Unilateral Opening Pulse Tubes Based on Real Gas Equation of State

被引：9

作者：

Dai Yuqiang ^{[1
]}

Hu Dapeng ^{[1
]}

Zou Jiupeng ^{[1
]}

Zhao Jiaquan ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Chem Engn, Dalian 116012, Peoples R China

来源：

CHINESE JOURNAL OF CHEMICAL ENGINEERING | 2009年 / 17卷 / 06期

关键词：

real gas flow; pulse tube; expansion refrigeration; unsteady flow; NEGATIVE NONLINEARITY; DENSE GASES; FLUIDS; NOZZLE;

D O I：

10.1016/S1004-9541(08)60296-7

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The real gas effect is dominant at high pressure and low temperature, and it is modeled by complex equations of state other than perfect gas law. In the vicinity of liquid-vapor critical point, the real gas exhibits unusual gas dynamic behavior. In the present work, a transient wave fields in unilateral opening pulse tube is simulated by solving the Navier-Stokes equations incorporated with the Peng-Robinson thermodynamic model. The computational fluid dynamics (CFD) results show a remarkable deviation between perfect gas model and real gas model for contact interface and shockwave. The wave diagram based on the real gas model can help to solve the problem of offset design point.

引用

页码：914 / 918

页数：5

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