Established in 1972, Rowan Williams Davies & Irwin Inc. (RWDI) is a specialty consulting engineering firm. The RWDI group of companies has offices in

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...

USA The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ...

India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

Singapore Singapore (), officially the Republic of Singapore, is a sovereign island country and city-state in maritime Southeast Asia. It lies about one degree of latitude () north of the equator, off the southern tip of the Malay Peninsula, borde ...

Hong Kong Hong Kong ( (US) or (UK); , ), officially the Hong Kong Special Administrative Region of the People's Republic of China ( abbr. Hong Kong SAR or HKSAR), is a city and special administrative region of China on the eastern Pearl River Delt ...

Malaysia Malaysia ( ; ) is a country in Southeast Asia. The federation, federal constitutional monarchy consists of States and federal territories of Malaysia, thirteen states and three federal territories, separated by the South China Sea into two r ...

and

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

. The company's headquarters is based in

Guelph Guelph ( ; 2021 Canadian Census population 143,740) is a city in Southwestern Ontario, Canada. Known as "The Royal City", Guelph is roughly east of Kitchener and west of Downtown Toronto, at the intersection of Highway 6, Highway 7 and Wel ...

Ontario Ontario ( ; ) is one of the thirteen provinces and territories of Canada.Ontario is located in the geographic eastern half of Canada, but it has historically and politically been considered to be part of Central Canada. Located in Central Ca ...

, Canada. RWDI is a

wind engineering Wind engineering is a subset of mechanical engineering, structural engineering, meteorology, and applied physics that analyzes the effects of wind in the natural and the built environment and studies the possible damage, inconvenience or benefits w ...

and

environmental engineering Environmental engineering is a professional engineering discipline that encompasses broad scientific topics like chemistry, biology, ecology, geology, hydraulics, hydrology, microbiology, and mathematics to create solutions that will protect and a ...

consulting firm and has featured on numerous television documentaries involving wind engineering and related services for the world's tallest

skyscrapers A skyscraper is a tall continuously habitable building having multiple floors. Modern sources currently define skyscrapers as being at least or in height, though there is no universally accepted definition. Skyscrapers are very tall high-ris ...

and landmark structures. The firm's facilities include five boundary layer

wind tunnels Wind tunnels are large tubes with air blowing through them which are used to replicate the interaction between air and an object flying through the air or moving along the ground. Researchers use wind tunnels to learn more about how an aircraft ...

, an open channel water flume, MM5 computer models for simulating atmospheric weather conditions and advanced computer modelling capabilities including computational fluid dynamics (CFD). RWDI also has in-house model shops at each of its

wind tunnel Wind tunnels are large tubes with air blowing through them which are used to replicate the interaction between air and an object flying through the air or moving along the ground. Researchers use wind tunnels to learn more about how an aircraft ...

facilities that use stereolithography technology, integrated data acquisition, storage and processing systems, computer-aided drafting, and a broad base of specialized instrumentation. The firm has conducted

on projects including the

London Millennium Bridge The Millennium Bridge, officially known as the London Millennium Footbridge, is a steel suspension bridge for pedestrians crossing the River Thames in London, England, linking Bankside with the City of London. It is owned and maintained by Brid ...

International Commerce Centre The International Commerce Centre (abbreviated ICC) is a 118-storey, commercial skyscraper completed in 2010 in West Kowloon, Hong Kong. It is a part of the Union Square project on top of Kowloon station. It was the 4th tallest building in the ...

in Hong Kong,

Petronas Towers The Petronas Towers, also known as the Petronas Twin Towers or KLCC Twin Towers, (Malay: ''Menara Berkembar Petronas'') are 88-storey supertall skyscrapers in Kuala Lumpur, Malaysia, standing at . From 1998 to 2003, they were officially design ...

in Malaysia,

Freedom Tower One World Trade Center (also known as One World Trade, One WTC, and formerly Freedom Tower) is the main building of the rebuilt World Trade Center complex in Lower Manhattan, New York City. Designed by David Childs of Skidmore, Owings & Merr ...

on the WTC Site, the second span of the

Tacoma Narrows Bridge The Tacoma Narrows Bridge is a pair of twin suspension bridges that span the Tacoma Narrows strait of Puget Sound in Pierce County, Washington. The bridges connect the city of Tacoma with the Kitsap Peninsula and carry State Route 16 (known ...

Taipei 101 Taipei 101 (; stylized as TAIPEI 101), formerly known as the Taipei World Financial Center, is a supertall skyscraper in Taipei, Taiwan. This building was officially classified as the world's tallest from its opening in 2004 until the 2009 ...

Tower, and the mega-skyscraper

Burj Khalifa The Burj Khalifa (; ar, برج خليفة, , Khalifa Tower), known as the Burj Dubai prior to its inauguration in 2010, is a skyscraper in Dubai, United Arab Emirates. It is known for being the world’s tallest building. With a total height ...

, currently the world's tallest building. The company also does noise and air quality modelling, monitoring and permitting.

References

External links

RWDI's official websiteRWDI new wind tunnel test facility in Florida, USA Discovery Channel Documentary
* ttps://web.archive.org/web/20060930052754/http://www.structuremag.org/archives/2006/June-2006/F-Taipei-101-June-06.pdf Engineering Taipei 101br>Giant Damper Doubles as Building’s Interior AdornmentThe Burj Dubai Tower - Wind Engineering
* ttps://web.archive.org/web/20060523164202/http://www.aawe.org/aawe-grap/newsletters/Sept2002news/aawenews_sep02.pdf Wind Engineering for Milwaukee Art Museumbr>USAToday Article "All the comforts of home — or not"
*[https://web.archive.org/web/20060513035741/http://www.ballparkwatch.com/stadiums/new/philadelphia.htm Reference to RWDI's contribution to the design of the Citizens Bank Park Stadium, home of the Philadelphia Phillies]
NIST Investigation of the World Trade Center Disaster - RWDI's contributionChicago's Windiest CornerWorld's Largest TLCD in Philadelphia
* {{Authority control Engineering companies of Canada Companies based in Guelph Consulting firms established in 1972 1972 establishments in Ontario