Numerical study of flow and energy fields in thermoacoustic couples of non-zero thickness
A limitation in many previous numerical studies of thermoacoustic couples has been the use of stack plates which are of zero thickness. In this study, a system for modelling thermoacoustic couples of non-zero thickness is presented and implemented using a commercial CFD code. The effect of increased...
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| Veröffentlicht in: | International journal of thermal sciences 2009-04, Vol.48 (4), p.733-746 |
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| container_title | International journal of thermal sciences |
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| creator | Zoontjens, L. Howard, C.Q. Zander, A.C. Cazzolato, B.S. |
| description | A limitation in many previous numerical studies of thermoacoustic couples has been the use of stack plates which are of zero thickness. In this study, a system for modelling thermoacoustic couples of non-zero thickness is presented and implemented using a commercial CFD code. The effect of increased drive-ratio and plate thickness upon the time-average heat transfer through the stack material is investigated. Results indicate that the plate thickness strongly controls the generation of vortices outside the stack region, perturbing the flow structure and heat flux distribution at the extremities of the plate. An increase in plate thickness is also shown to improve the spatial integral of the total heat transfer rate but at the expense of increased entropy generation. |
| doi_str_mv | 10.1016/j.ijthermalsci.2008.06.007 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 1290-0729 |
| ispartof | International journal of thermal sciences, 2009-04, Vol.48 (4), p.733-746 |
| issn | 1290-0729 1778-4166 |
| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Acoustic streaming Applied sciences Computational methods in fluid dynamics Cryogenics Energy Energy. Thermal use of fuels Exact sciences and technology Fluid dynamics Fundamental areas of phenomenology (including applications) Heat Heat exchangers Physics Refrigerating engineering. Cryogenics. Food conservation Sound Thermoacoustic couples Thermoacoustics |
| title | Numerical study of flow and energy fields in thermoacoustic couples of non-zero thickness |
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