Effects of facades positioned at differentangles on building thermal performance andflow behaviors  

作　　者：Majid Amani-Beni Mahdi Tabatabaei Malazi Besir Sahin Ahmet Selim Dalkılıc 

机构地区：[1]School of Architecture,Southwest Jiaotong University,Chengdu 611756,China [2]Department of Mechanical Engineering,Faculty of Engineering Istanbul Aydin University,Istanbul 34295,Turkey [3]Department of Aerospace Engineering,Faculty of Engineering Istanbul Aydin University,Istanbul 34295,Turkey [4]Department of Mechanical Engineering,Faculty of Engineering,Cukurova University,Adana 01330,Turkey [5]Department of Mechanical Engineering,Faculty of Mechanical Engineering,Yildiz Technical University,Istanbul 34349,Turkey

出　　处：《Frontiers of Architectural Research》2025年第1期267-281,共15页建筑学研究前沿(英文版)

基　　金：funded by the Key Research and Development Program of Sichuan Province(No.2023YFWZ0008).

摘　　要：This study simulates wind effects on a standard tall building model as specified bythe Commonwealth Advisory Aeronautical Council (CAARC). We generated data to enhanceliving conditions through passive flow control, which mitigates building weathering, reduceswind loads, and improves energy efficiency and natural ventilation. The research also aidsbuilding designers with robust numerical predictions. The validity of these results wasconfirmed by comparing drag coefficient (CD) values with those from previous studies. The findings demonstrate that passive flow control significantly reduces wind-induced drag forces onthe building at various angles of attack (a) by altering wind-induced pressures, reducingvorticity, and decreasing vortex shedding magnitudes. The objective was to identify theoptimal placement of segmented cladding materials with desired gaps between segments toallow airflow to influence temperature variations when exposed to wind at 293 K and a heatflux of 500 W/m^(2) at wind speeds of 1, 2, and 4 m/s (Reynolds numbers of 5.2×10^(3),10.4×10^(3), and 20.8×10^(3)). Using 2D numerical analysis, twenty-four different facade andbuilding model combinations were simulated. This study offers practical guidance on facadeselection and positioning to optimize wind resistance and enhance the livability and functionality of building environments.

关 键 词：BUILDINGS Energy efficiency WIND Facade optimization Numerical simulation Drag force 

分 类 号：O35[理学—流体力学]