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

›› 2009, Vol. 17 ›› Issue (6): 914-918.

• FLUID FLOW AND TRANSPORT PHENOMENA • Previous Articles Next Articles

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

DAI Yuqiang, HU Dapeng, ZOU Jiupeng, ZHAO Jiaquan

School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China

Received:2009-02-19 Revised:2009-10-13 Online:2009-12-28 Published:2009-12-28

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

代玉强, 胡大鹏, 邹久朋, 赵家权

School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China

通讯作者: DAI Yuqiang,E-mail:daiyq@chem.dlut.edu.cn

Abstract

Abstract: 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.

Key words: real gas flow, pulse tube, expansion refrigeration, unsteady flow

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.

关键词: real gas flow, pulse tube, expansion refrigeration, unsteady flow

DAI Yuqiang, HU Dapeng, ZOU Jiupeng, ZHAO Jiaquan. Gas Flow in Unilateral Opening Pulse Tubes Based on Real Gas Equation of State[J]. , 2009, 17(6): 914-918.

代玉强, 胡大鹏, 邹久朋, 赵家权. Gas Flow in Unilateral Opening Pulse Tubes Based on Real Gas Equation of State[J]. , 2009, 17(6): 914-918.

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

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

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