CFD Benchmark Tests for Indoor Environmental Problems: Part 4 Air-conditioning Airflows, Residential Kitchen Airflows and Fire-Induced Flow

TLDR

Computational Fluid Dynamics has become a practical design tool for indoor environments, but its prediction accuracy depends on a deep understanding of fluid dynamics fundamentals and appropriate boundary and numerical conditions, necessitating further study of specific indoor problems. This study series aims to provide practical information on CFD prediction accuracy and problematic areas in air conditioning and ventilation by conducting benchmark tests and reporting the results. Benchmark tests were conducted on air‑conditioning airflows, residential kitchen airflows, and fire‑induced flow to assess CFD performance. The benchmark test results for air‑conditioning airflows, residential kitchen airflows, and fire‑induced flow were presented and discussed.

Abstract

Computational Fluid Dynamics (CFD) has become practical design tool for indoor environment recent years and the application cases have been increasing. Though the improvement of the prediction accuracy of CFD is needed in connection with the upgrade of design quality in indoor environment and Heating, Ventilation and air-conditioning (HVAC) system, the prediction accuracy of CFD simulation depends on the understanding for the fundamentals of fluid dynamics and the setting of appropriate boundary and numerical conditions as well. Additionally, deeper understanding to a specific problem regarding indoor environment is also required. The series of this study aimed to provide with the practical information such as prediction accuracy and problematic areas related to CFD applications in air conditioning and ventilation, then performed benchmark tests and reported the results. Especially in this Part 4, benchmark test results for Air-conditioning airflows, Residential kitchen airflows and Fire-induced flow were introduced and discussed.