Study of Interference Effects using Aerodynamics Control System and POD Analysis

2001 Fiscal Year Final Research Report Summary

• Project/Area Number: 11650596
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Building structures/materials
• Research Institution: TOKYO INSTITUTE OF POLYTECHNICS
• Principal Investigator: SUGANUMA Shinya Tokyo Institute of Polytechnics, Lecturer, 工学部, 講師 (80267533)
• Co-Investigator(Kenkyū-buntansha): TAMURA Yukio Tokyo Institute of Polytechnics, Professor, 工学部, 教授 (70163699)
• Project Period (FY): 1999 – 2001
• Keywords: Wake Buffeting / Interference Effects / POD Analysis / Aerodynamics Control System / Rotors / Wind Force for Across Wind / Wind Tunnel Tests / Shear Layer of Separate Flow

Research Abstract

Where two adjoining high-rise buildings are subjected to longitudinal wind load, the downwind building receives wake buffeting which causes largely across-wind vibration. Wind tunnel tests have been performed on two longitudinally-aligned two-dimensional prisms. This study describes wind pressures acting on the down wind prism when rotors is installed to the upwind or downwind prism. The proper orthogonal decomposition (POD) analysis characterizes the spatio-temporal structure of randomly fluctuating pressure field. The observed fluctuating wind pressures are also analyzed by POD and essential effects of rotors are examined.