NDLI: Convection and Transport in a Differentially Heated Enclosure Filled With Supercritical Carbon Dioxide: Short- and Long-Time Solutions

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Lei, Zhiheng Farouk, Bakhtier
Copyright Year	2008
Abstract	Supercritical fluids are characterized by high densities, high thermal conductivities (compared to gases) and low viscosities, but low thermal diffusivities (compared to liquids). Due to the high compressibility, thermally induced acoustic waves are generated when supercritical fluids are heated/cooled along any bounding surface. In this study, we obtain both short- and long-time solutions for convective flows in a supercritical carbon dioxide filled enclosure. The NIST database 12 [1] is used to obtain the property relations for supercritical carbon dioxide. The generation and propagation of themoacoustic waves produced immediately after rapid heating of a wall are investigated by solving the fully compressible Navier-Stokes equations with an accurate equation of state, via a high-order explicit numerical scheme. For longer time solutions, when the acoustic waves damp out, an implicit solution algorithm is used to simulate the heat transfer in the above enclosure filled with supercritical carbon dioxide for longer periods time. This novel scheme allows us to investigate convective flows in an enclosure filled with supercritical fluid in a comprehensive manner.
Starting Page	1769
Ending Page	1777
Page Count	9
File Format	PDF
ISBN	9780791848715
DOI	10.1115/IMECE2008-68390
e-ISBN	9780791838402
Volume Number	Volume 10: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B, and C
Conference Proceedings	ASME 2008 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2008-10-31
Publisher Place	Boston, Massachusetts, USA
Access Restriction	Subscribed
Subject Keyword	Viscosity Compressibility Navier-stokes equations Acoustics Waves Flow (dynamics) Convection Gases Supercritical fluids Supercritical carbon dioxide Algorithms Databases Equations of state Heating National institute of standards and technology Heat transfer
Content Type	Text
Resource Type	Article

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