A literature review of building energy simulation and computational fluid dynamics co-simulation strategies and its implications on the accuracy of energy predictions

IF 1.5 4区 工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY
Manander Singh, Ryan Sharston
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引用次数: 8

Abstract

The paper presents a review of existing literature in the field of coupling Computational Fluid Dynamics (CFD) with Building Energy Simulations (BES) to better predict indoor environmental conditions and building energy implications. CFD is capable of providing a detailed analysis of airflow profile and temperature gradients in the space as well as better prediction of heat transfer involving convection and radiation. Whereas BES can provide dynamically changing boundary conditions to CFD to facilitate a precise transient analysis. Combining the two simulations provides a powerful framework to accurately predict building performance parameters. The review examines the variables exchanged between the two simulations and establishes that the Convective Heat Transfer Coefficient (CHTC) as the most important exchanged variable that can significantly improve the accuracy of energy simulations. Issues regarding the application of co-simulation mechanism are then discussed in terms of simulation discontinuities, along with strategies adopted by researchers to overcome the same. In the later sections, the review evaluates the applicability of co-simulation from the perspective of year-long building energy simulations and presents an overview of methods used in research to implement the same. Finally, the conclusions are discussed and the scope for future research in the field is presented. Practical implication: The review presents a critical analysis of essentially all major coupling strategies that can be used to perform a BES-CFD coupled analysis along with their strengths, limitations and possible application scenarios. Additionally, the problems associated with establishing the co-simulation are examined and various adopted solutions are presented along with methods implemented towards extending the practical applicability of such an analysis to encapsulate year-long simulations.
建筑能量模拟与计算流体力学联合模拟策略的文献综述及其对能量预测准确性的影响
本文综述了计算流体动力学(CFD)与建筑能源模拟(BES)耦合领域的现有文献,以更好地预测室内环境条件和建筑能源影响。CFD能够对空间中的气流剖面和温度梯度进行详细分析,并更好地预测涉及对流和辐射的传热。而BES可以为CFD提供动态变化的边界条件,以便于进行精确的瞬态分析。将这两种模拟相结合,为准确预测建筑性能参数提供了一个强大的框架。该综述检查了两种模拟之间交换的变量,并确定对流传热系数(CHTC)是最重要的交换变量,可以显著提高能量模拟的准确性。然后,从模拟不连续性的角度讨论了联合模拟机制的应用问题,以及研究人员为克服这种不连续性而采取的策略。在后面的章节中,综述从长达一年的建筑能源模拟的角度评估了联合模拟的适用性,并概述了研究中用于实现联合模拟的方法。最后,对结论进行了讨论,并提出了该领域未来的研究范围。实际意义:该综述对可用于执行BES-CFD耦合分析的基本上所有主要耦合策略及其优势、局限性和可能的应用场景进行了批判性分析。此外,还检查了与建立联合模拟相关的问题,并提出了各种采用的解决方案,以及为扩展这种分析的实际适用性以封装一年的模拟而实施的方法。
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
Building Services Engineering Research & Technology
Building Services Engineering Research & Technology 工程技术-结构与建筑技术
CiteScore
4.30
自引率
5.90%
发文量
38
审稿时长
>12 weeks
期刊介绍: Building Services Engineering Research & Technology is one of the foremost, international peer reviewed journals that publishes the highest quality original research relevant to today’s Built Environment. Published in conjunction with CIBSE, this impressive journal reports on the latest research providing you with an invaluable guide to recent developments in the field.
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