Conference proceeding
Generation and propagation of thermally induced acoustic waves in supercritical carbon dioxide: HEAT TRANSFER, FLUID FLOWS, AND THERMAL SYSTEMS
PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION 2007, VOL 8, PTS A AND B, pp.271-278
01 Jan 2008
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Abstract
The generation and propagation of thermally induced acoustic waves in a confined layer of supercritical carbon dioxide are investigated by solving the fully compressible unsteady Navier-Stokes equations. These waves are generated by rapidly heating/cooling a sidewall. Due to the high compressibility, thermally induced acoustic waves are generated along any heated/cooled surface. The acoustic wave reflects from the opposing sidewall and continues to reverberate between the opposing walls. Even though supercritical fluids have high thermal conductivity, heat diffusion is slow. However, the temperature of the layer of the supercritical carbon dioxide is found to increase due to the dissipation of the acoustic energy. Ideal-gas law does not apply to supercritical fluids. Furthermore the internal energy is also not a function of temperature only. The above property variation effects are considered in the present paper.
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Details
- Title
- Generation and propagation of thermally induced acoustic waves in supercritical carbon dioxide
- Creators
- Zhiheng Lei - Drexel Univ, Dept Mech Engn & Mech, Philadelphia, PA 19104 USABakhtier Farouk - Drexel UniversityASME
- Publication Details
- PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION 2007, VOL 8, PTS A AND B, pp.271-278
- Conference
- ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION 2007
- Publisher
- Amer Soc Mechanical Engineers
- Number of pages
- 8
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Mechanical Engineering and Mechanics
- Identifiers
- 991019170148604721
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- Web of Science research areas
- Engineering, Mechanical
- Thermodynamics