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Water Tunnel (hydrodynamic)
A water tunnel is an experimental facility used for testing the hydrodynamic behavior of submerged bodies in flowing water. It functions similar to a recirculating wind tunnel, but uses water as the working fluid, and related phenomena are investigated, such as measuring the forces on scale models of submarines or lift and drag on hydrofoils. Water tunnels are sometimes used in place of wind tunnels to perform measurements because techniques like particle image velocimetry (PIV) are easier to implement in water. For many cases as long as the Reynolds number is equivalent, the results are valid, whether a submerged water vehicle model is tested in air or an aerial vehicle is tested in water. For low Reynolds number flows, tunnels can be made to run oil instead of water. The advantage is that the increased viscosity will allow the flow to be a faster speed (and thus easier to maintain in a stable manner) for a lower Reynolds number. Whereas in wind tunnels the driving force is u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berlin-tiergarten Vws 20050404 P1020295
Tiergarten (, literally ''Animal Garden'', historically for ''Deer Garden'') is a locality within the borough of Mitte, in central Berlin (Germany). Notable for the great and homonymous urban park, before German reunification, it was a part of West Berlin. Until Berlin's 2001 administrative reform, Tiergarten was also the name of a borough (Bezirk), consisting of the current locality (''Ortsteil'') of Tiergarten (formerly called ''Tiergarten-Süd'') plus Hansaviertel and Moabit. A new system of road and rail tunnels runs under the park towards Berlin's main station in nearby Moabit. History Historical notes Once a hunting ground of the Electors of Brandenburg the ''Großer Tiergarten'' park of today was designed in the 1830s by landscape architect Peter Joseph Lenné. In the course of industrialization in the 19th century, a network of streets was laid out in the Hobrecht-Plan in an area that came to be known architecturally as the Wilhelmine Ring. In 1894 the Reichstag bu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Similitude (model)
Similitude is a concept applicable to the testing of engineering models. A model is said to have similitude with the real application if the two share geometric similarity, kinematic similarity and dynamic similarity. ''Similarity'' and ''similitude'' are interchangeable in this context. The term dynamic similitude is often used as a catch-all because it implies that geometric and kinematic similitude have already been met. Similitude's main application is in hydraulic and aerospace engineering to test fluid flow conditions with scaled models. It is also the primary theory behind many textbook formulas in fluid mechanics. The concept of similitude is strongly tied to dimensional analysis. Overview Engineering models are used to study complex fluid dynamics problems where calculations and computer simulations aren't reliable. Models are usually smaller than the final design, but not always. Scale models allow testing of a design prior to building, and in many cases are a cr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wageningen
Wageningen () is a municipality and a historic city in the central Netherlands, in the province of Gelderland. It is famous for Wageningen University, which specialises in life sciences. The municipality had a population of in , of which many thousands are students from over 150 countries. Demograpics Inhabitants by nationality 71,68% is Dutch, 28,32% has a migration background. Geography Wageningen is situated on the north bank of the Nederrijn (the Dutch portion of the Lower Rhine) part of the Gelderse valley (Dutch: Gelderse Vallei) and the Veluwe, of which the southwest hill is called the ''Wageningse Berg''. Wageningen can be reached by car from highways A12 via the N781, A15 via the N233 and N225, and A50 via the N225, and from the Ede-Wageningen railway station via a 20-minute bus drive to the Wageningen central terminal (see below)., ''Topographic map of the municipality of Wageningen, July 2013 (click to enlarge)'' History The oldest known settlements in the Wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MARIN (research)
MARIN, the Maritime Research Institute Netherlands, is one of the leading institutes in the world for hydrodynamic research and maritime technology. The services incorporate a unique combination of simulation, model testing, full-scale measurements and training programmes. MARIN provides services to the shipbuilding and offshore industry and governments. Customers include commercial ship builders, fleet owners, naval architects, classification societies, oil and LNG companies and navies all over the world. In the Netherlands MARIN has the status of Great Technological Institute, thus linking science and applied knowledge. Results from fundamental research are directly integrated in applications for clients. Over 85% of the turnover is realised by commercial projects for the international maritime industry. The remaining 15% is derived from scientific research. Offices MARIN’s head office is in Wageningen, with additional offices in Ede, Houston, and Annapolis. The institute ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rome
, established_title = Founded , established_date = 753 BC , founder = King Romulus (legendary) , image_map = Map of comune of Rome (metropolitan city of Capital Rome, region Lazio, Italy).svg , map_caption = The territory of the ''comune'' (''Roma Capitale'', in red) inside the Metropolitan City of Rome (''Città Metropolitana di Roma'', in yellow). The white spot in the centre is Vatican City. , pushpin_map = Italy#Europe , pushpin_map_caption = Location within Italy##Location within Europe , pushpin_relief = yes , coordinates = , coor_pinpoint = , subdivision_type = Country , subdivision_name = Italy , subdivision_type2 = Region , subdivision_name2 = Lazio , subdivision_type3 = Metropolitan city , subdivision_name3 = Rome Capital , government_footnotes= , government_type = Strong Mayor–Council , leader_title2 = Legislature , leader_name2 = Capitoline Assemb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Genoa
The University of Genoa, known also with the acronym UniGe ( it, Università di Genova), is one of the largest universities in Italy. It is located in the city of Genoa and regional Metropolitan City of Genoa, on the Italian Riviera in the Liguria region of northwestern Italy. The original university was founded in 1481. According to Microsoft Academic Search 2016 rankings, the University of Genoa has high-ranking positions among the European universities in multiple computer science fields: * in machine learning and pattern recognition the University of Genoa is the best scientific institution in Italy and is ranked 36th in Europe; * in computer vision the University of Genoa is the best scientific institution in Italy and is ranked 34th in Europe; * in computer graphics the University of Genoa is ranked 2nd institution in Italy and 35th in Europe. The University of Genoa has a strong collaboration with the Italian Institute of Technology (IIT), since its foundation in 2005. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Madras
Chennai (, ), formerly known as Madras ( the official name until 1996), is the capital city of Tamil Nadu, the southernmost Indian state. The largest city of the state in area and population, Chennai is located on the Coromandel Coast of the Bay of Bengal. According to the 2011 Indian census, Chennai is the sixth-most populous city in the country and forms the fourth-most populous urban agglomeration. The Greater Chennai Corporation is the civic body responsible for the city; it is the oldest city corporation of India, established in 1688—the second oldest in the world after London. The city of Chennai is coterminous with Chennai district, which together with the adjoining suburbs constitutes the Chennai Metropolitan Area, the List of urban areas by population, 36th-largest urban area in the world by population and one of the largest metropolitan economies of India. The traditional and de facto gateway of South India, Chennai is among the most-visited Indian cities by f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Visakhapatnam
, image_alt = , image_caption = From top, left to right: Visakhapatnam aerial view, Vizag seaport, Simhachalam Temple, Aerial view of Rushikonda Beach, Beach road, Novotel, Novotel Visakhapatnam, INS Kursura (S20), INS Kursura submarine museum, Vizag skyline, Kambalakonda wildlife sanctuary , etymology = , nickname = The City of DestinyThe Jewel of the East Coast , image_map = , map_caption = , pushpin_map = India Visakhapatnam#India Andhra Pradesh#India#Asia#Earth , pushpin_label_position = left , pushpin_map_alt = , pushpin_map_caption = , coordinates = {{coord, 17, 42, 15, N, 83, 17, 52, E, display=inline,title , subdivision_type = Country , subdivision_name = {{flag, India , subdivision_type1 = States and union territories of India, State , subdivision_name1 = Andhra Pradesh , subdivision_type2 = ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kerala
Kerala ( ; ) is a state on the Malabar Coast of India. It was formed on 1 November 1956, following the passage of the States Reorganisation Act, by combining Malayalam-speaking regions of the erstwhile regions of Cochin, Malabar, South Canara, and Thiruvithamkoor. Spread over , Kerala is the 21st largest Indian state by area. It is bordered by Karnataka to the north and northeast, Tamil Nadu to the east and south, and the Lakshadweep Sea to the west. With 33 million inhabitants as per the 2011 census, Kerala is the 13th-largest Indian state by population. It is divided into 14 districts with the capital being Thiruvananthapuram. Malayalam is the most widely spoken language and is also the official language of the state. The Chera dynasty was the first prominent kingdom based in Kerala. The Ay kingdom in the deep south and the Ezhimala kingdom in the north formed the other kingdoms in the early years of the Common Era (CE). The region had been a prominent spic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palakkad
Palakkad (), formerly known as Palghat, historically known as Palakkattussery is a city and municipality in the Indian state of Kerala. It is the administrative headquarters of the Palakkad District. Palakkad is most densely populated municipality and fourth densely populated city in Kerala. It was established before Indian independence under British rule and was known by the name Palghat. Palakkad is famous for the ancient Palakkad Fort, which is situated at the heart of the city and was captured and rebuilt by Hyder Ali in 1766. The city is situated about northeast of the state capital Thiruvananthapuram. The 18th-century Palakkad Fort has sturdy battlements, a moat, and a Hanuman temple on its grounds. North on the Kalpathy River, the 15th-century Viswanatha Swamy Temple is the main venue of the Ratholsavam chariot festival.The river Bharathappuzha flows through Palakkad. Palakkad is located on the northern bank of Bharathappuzha River. Palakkad was included in the South ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Research Council (Canada)
The National Research Council Canada (NRC; french: Conseil national de recherches Canada) is the primary national agency of the Government of Canada dedicated to science and technology research and development, research & development. It is the largest federal research & development organization in Canada. The Minister of Innovation, Science and Industry, Minister of Innovation, Science, and Economic Development (currently, François-Philippe Champagne) is responsible for the NRC. Mandate NRC is an Government agency, agency of the Government of Canada, and its mandate is set out in the ''National Research Council Act''. Under the Act, the NRC is responsible for: * Undertaking, assisting or promoting scientific and industrial research in fields of importance to Canada; * Providing vital scientific and technological services to the research and industrial communities; * Investigating standards and methods of measurement; * Working on the standardization and certification of sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
