Significance of Inclination and Energy Loss for a Free Convection Flow in a Chamber Filled with a Bidisperse Porous Medium

IF 2.6 3区工程技术 Q3 ENGINEERING, CHEMICAL

Transport in Porous Media Pub Date : 2025-09-18 DOI:10.1007/s11242-025-02225-w

F. O. Patrulescu, T. Grosan, D. S. Cimpean

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引用次数: 0

Abstract

The steady free convection and entropy generation in a differentially heated square inclined enclosure filled with a saturated bidisperse porous medium (BDPM) is analysed. The governing equations of the model, consisted by the continuity equation, Darcy equation and energy for both phases, containing interphase transfer terms, are transformed in terms of non-dimension variables. The numerical solution of both phases of flow and heat transfer is achieved through the utilisation of a modified finite difference technique. After the process of discretisation, the algebraic system is solved using the successive over relaxation method. The influence of the involved parameters on the flow and heat transfer characteristics (stream functions, isotherms, and Nusselt numbers) is observed as well as the entropy generation for monodisperse and bidisperse porous medium cases. The results are focused on the behaviour of the flow at different angles of the inclination of the cavity. A strong correlation was observed between the present findings and previously published results in the open literature, for a vertical cavity.

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双分散多孔介质腔室中自由对流流动的倾斜和能量损失的意义

分析了饱和双分散多孔介质（BDPM）在差热方形斜罩内的稳定自由对流和熵生成。模型的控制方程由连续性方程、达西方程和两相能量组成，包含相间传递项，并以无量纲变量的形式进行了变换。通过利用改进的有限差分技术，实现了流动和传热两相的数值解。经过离散化处理后，采用逐次过松弛法求解该代数系统。观察了所涉及的参数对流动和传热特性（流函数、等温线和努塞尔数）的影响，以及单分散和双分散多孔介质情况下的熵生成。结果集中在不同的腔倾斜角度下的流动行为。一个强的相关性被观察到在目前的发现和以前发表的结果在开放的文献，为一个垂直腔。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Transport in Porous Media 工程技术-工程：化工

CiteScore

5.30

自引率

7.40%

发文量

155

审稿时长

4.2 months

期刊介绍： -Publishes original research on physical, chemical, and biological aspects of transport in porous media- Papers on porous media research may originate in various areas of physics, chemistry, biology, natural or materials science, and engineering (chemical, civil, agricultural, petroleum, environmental, electrical, and mechanical engineering)- Emphasizes theory, (numerical) modelling, laboratory work, and non-routine applications- Publishes work of a fundamental nature, of interest to a wide readership, that provides novel insight into porous media processes- Expanded in 2007 from 12 to 15 issues per year. Transport in Porous Media publishes original research on physical and chemical aspects of transport phenomena in rigid and deformable porous media. These phenomena, occurring in single and multiphase flow in porous domains, can be governed by extensive quantities such as mass of a fluid phase, mass of component of a phase, momentum, or energy. Moreover, porous medium deformations can be induced by the transport phenomena, by chemical and electro-chemical activities such as swelling, or by external loading through forces and displacements. These porous media phenomena may be studied by researchers from various areas of physics, chemistry, biology, natural or materials science, and engineering (chemical, civil, agricultural, petroleum, environmental, electrical, and mechanical engineering).