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Two-dimensional model for tapered pulse tubes Part 3: unsteady components of second-order mass flux and temperature
- Issue Date
- Aug-2002
- Publisher
- ELSEVIER SCI LTD
- Keywords
- pulse tube refrigerators; tapered pulse tubes; two-dimensional model; unsteady second-order; mass flux; temperature
- Citation
- CRYOGENICS, v.42, no.8, pp.485 - 493
- Journal Title
- CRYOGENICS
- Volume
- 42
- Number
- 8
- Start Page
- 485
- End Page
- 493
- ISSN
- 0011-2275
- Abstract
- Unsteady components of the second-order axial velocity and temperature within a tapered pulse tube were obtained by using a hybrid method of solution. In this method, the unsteady components of the second-order axial velocity and temperature consist of an analytical solution and a numerical solution. The effects of the operating frequency and the taper angle on the unsteady components of the second-order mass flux and temperature were shown. The unsteady second-order mass flux and the time-averaged enthalpy flow by the unsteady second-order mass flux increase as the second-order displacement volume at the cold end increases. (C) 2002 Elsevier Science Ltd. All rights reserved.
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