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Coandă
Coandă may refer to: *Constantin Coandă, Romanian Army general, Prime Minister of Romania during World War I. * Henri Coandă, Constantin's son, aircraft designer and inventor. **The Coandă effect The Coandă effect ( or ) is the tendency of a fluid jet to stay attached to a convex surface. ''Merriam-Webster'' describes it as "the tendency of a jet of fluid emerging from an orifice to follow an adjacent flat or curved surface and to en ..., a phenomenon that causes a fluid to be attracted to another object, named after Henri Coandă. {{DEFAULTSORT:Coanda Romanian-language surnames ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coandă Effect
The Coandă effect ( or ) is the tendency of a fluid jet to stay attached to a convex surface. ''Merriam-Webster'' describes it as "the tendency of a jet of fluid emerging from an orifice to follow an adjacent flat or curved surface and to entrain fluid from the surroundings so that a region of lower pressure develops." It is named after Romanian inventor Henri Coandă, who was the first to recognize the practical application of the phenomenon in aircraft design around 1910. It was first documented explicitly in two patents issued in 1936. Discovery An early description of this phenomenon was provided by Thomas Young in a lecture given to The Royal Society in 1800: A hundred years later, Henri Coandă identified an application of the effect during experiments with his Coandă-1910 aircraft, which mounted an unusual engine he designed. The motor-driven turbine pushed hot air rearward, and Coandă noticed that the airflow was attracted to nearby surfaces. In 1934 Coandă ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henri Coandă
Henri Marie Coandă (; 7 June 1886 – 25 November 1972)''Flight'' 1973 was a Romanian inventor, aerodynamics pioneer, and builder of an experimental aircraft, the Coandă-1910 described by Coandă in the mid-1950s as the world's first jet, a controversial claim disputed by some and supported by others. He invented a great number of devices, designed a "flying saucer" and discovered the Coandă effect of fluid dynamics. Life Early life Born in Bucharest, Coandă was the second child of a large family. His father was General Constantin Coandă, a mathematics professor at the National School of Bridges and Roads. His mother, Aida Danet, was the daughter of French physician Gustave Danet, and was born in Brittany. Coandă recalled later in life that beginning from childhood he was fascinated by the miracle of wind. Coandă attended Elementary school at the ''Petrache Poenaru'' Communal School in Bucharest, then (1896) Began his secondary school career at the Liceu ''Sf. Sava'' (Sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Constantin Coandă
Constantin Coandă (4 March 1857 – 30 September 1932) was a Romanian soldier and politician. Biography Constantin Coandă was born in Craiova. He reached the rank of general in the Romanian Army, and later became a mathematics professor at the National School of Bridges and Roads in Bucharest. Among his seven children was Henri Coandă, the discoverer of the Coandă effect. During World War I, for a short time (24 October – 29 November 1918), he was the Prime Minister of Romania and the Foreign Affairs Minister. He participated in the signing of the Treaty of Neuilly between the Allies of World War I and Bulgaria. On 8 December 1920, during his term as President of the Senate of Romania (representing Alexandru Averescu's People's Party), he was badly wounded by a bomb set up by the terrorist and anarchist Max Goldstein. Military functions * Platoon commander in the 1st Artillery Regiment (1877 – 1883) * Positions in military education at the Bucharest Sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Romanian Army
The Romanian Land Forces ( ro, Forțele Terestre Române) is the army of Romania, and the main component of the Romanian Armed Forces. In recent years, full professionalisation and a major equipment overhaul have transformed the nature of the Land Forces. The Romanian Land Forces was founded on . It participated in World War I, together with the Imperial Russian Army in actions against the Central Powers and, despite initial setbacks, won the decisive battles of Mărăști and Mărășești. During most of World War II (until August 23, 1944) Romanian forces supported the Axis powers, fighting against the Soviet Union on the Eastern Front. From August 1944 until the end of the war, Romania fought against Germany under the control of the Soviet Union. When the communists seized power after the Second World War, the army underwent reorganisation and sovietization. Following the Romanian Revolution of 1989, due to shortage of funds, many units were disbanded and much equipment wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War I
World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fighting occurring throughout Europe, the Middle East, Africa, the Pacific, and parts of Asia. An estimated 9 million soldiers were killed in combat, plus another 23 million wounded, while 5 million civilians died as a result of military action, hunger, and disease. Millions more died in genocides within the Ottoman Empire and in the 1918 influenza pandemic, which was exacerbated by the movement of combatants during the war. Prior to 1914, the European great powers were divided between the Triple Entente (comprising France, Russia, and Britain) and the Triple Alliance (containing Germany, Austria-Hungary, and Italy). Tensions in the Balkans came to a head on 28 June 1914, following the assassination of Archduke Franz Ferdi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
