Wind and Rain Test Laboratory
OutlineIn order to examine the various impacts of strong winds and heavy rains caused bytyphoons and other weather events on buildings, it is essential to conduct research andevaluation through wind tunnel experiments and water spray tests. The Wind and Rain Test
Laboratory comprises two laboratories: the Strong Wind Test Laboratory and the Full-scale
Strong Wind and Rain Test Laboratory. These facilities are used for conducting experiments
for researching the wind resistance of buildings, the waterproof performance of exteriormaterials, and the urban wind environment.

Strong Wind Test Lab.

Full-scale Strong Windand Rain Test Lab.

Full-scale Strong Windand Rain Test Lab.

Wind tunnelcircuit

Wind tunnel circuit(Turbulent Boundary Layer Wind Tunnel)

THE OVERALL MODEL OF WIND AND RAIN TEST LAB.

Strong Wind Test Lab.

EXTERIOR SHOT TAKEN WITH A DRONE

■Strong Wind Test Laboratory
1. Turbulent Boundary Layer Wind Tunnel (Göttingen Type Wind Tunnel)
The Turbulent Boundary Layer Wind Tunnel is a device used to study wind loads caused bystrong winds such as typhoons, wind responses of buildings, and urban wind environments.
Depending on the specific research objectives and phenomena, it enables experiments using scalemodels to study wind pressures, wind forces, aerodynamic vibrations, and flow visualization. Itis equipped with an automatic adjustable roughness block to simulate the roughness of urban
ground surfaces and can generate various airflows depending on the condition of the ground surface.

THE EXTERIOR OF
THE TURBULENT BOUNDARY LAYER WIND TUNNEL.

WIND PRESSURE TEST ON A MODEL OF A SKYSCRAPER

2. Tornado-like Wind Simulator
The Tornado-like Wind Simulator is designed to reproduce a non-steady swirling airflow(tornado-like wind) that simulates a moving tornado. It is used to experimentally evaluate thewind force characteristics caused by gusts such as tornadoes and the impact risk due to flying
objects. This device consists of a main unit with a built-in blower, a self-propelled trestle, a stage,
and a control panel. A scale model is placed on the stage to measure the wind pressure generated
by the tornado-shaped airflow as it passes.

Main unit

StageSelf-propelled trestle

APPEARANCE OF TORNADO-LIKE WIND SIMULATORTORNADO-LIKE AIRFLOW

■Full-scale Strong Wind and Rain Test Laboratory
3. Full-scale Severe Storm Generator
The Full-scale Severe Storm Generator, established in 2020, is a device capable ofconducting experiments under wind speeds exceeding 70 m/s at maximum. It is also equippedwith a sprinkler system, allowing for experiments under strong wind and rain equivalent torecent powerful typhoons. This device enables waterproof performance tests and wind
resistance tests, including the evaluation of potential damage and failure of finishing materials
on full-scale buildings, such as roofing, exterior walls, and openings like window glass.

Sprinkler system
NozzleRoof test specimen
Turn table

ROOF TILE SCATTERING EXPERIMENTAPPEARANCE OF
FULL-SCALE SEVERE STORM GENERATOR

4. Full-scale Dynamic Wind Pressure Loading Device
The Full-scale Dynamic Wind Pressure Loading Device, established in 2022, is a device
designed for testing the wind resistance and waterproof performance of full-scale building
materials such as roofing materials, exterior materials, and window sashes. This device iscapable of simulating not only static and sinusoidal wind loading but also dynamic windloading that can fluctuate randomly as actual wind pressure fluctuations.

Pressure chamberControl panel

Mounting frame
APPEARANCE OF FULL-SCALE DYNAMIC WINDPRESSURE LOADING DEVICE