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Wind tunnel

Index Wind tunnel

A wind tunnel is a tool used in aerodynamic research to study the effects of air moving past solid objects. [1]

99 relations: Aerodynamics, Airflow Sciences Corporation, Angle of attack, Arsenal (Vienna), Aspect ratio (aeronautics), Automotive design, Ötztal, Bell X-2, Benjamin Robins, Bernoulli's principle, Building code, California Institute of Technology, Car, Carl Richard Nyberg, Clark Blanchard Millikan, Compressible flow, Computational fluid dynamics, Concorde, De Laval nozzle, Doriot Climatic Chambers, Dynamic pressure, Dynamic similarity (Reynolds and Womersley numbers), European Transonic Wind Tunnel, Fan (machine), Flugan, Fluid dynamics, Flume, France, Francis Herbert Wenham, Freon, Froude number, Full-Scale Wind Tunnel, George Cayley, Green building, Gustave Eiffel, Henry H. Arnold, Hydropower, Hypersonic wind tunnel, Impeller, Kármán vortex street, Konstantin Tsiolkovsky, Leadership in Energy and Environmental Design, Lift coefficient, Lift-induced drag, Lift-to-drag ratio, List of wind tunnels, Ludwig Prandtl, Mach number, Modane, NASA, ..., National Historic Landmark, Nebulizer, Northrop Alpha, ONERA, Osborne Reynolds, Otto Lilienthal, Parachuting, Particle image velocimetry, Peenemünde, Physical model, Piezoelectricity, Pitot tube, Poul la Cour, Pressure measurement, Pressure-sensitive paint, Reynolds number, Rocket-powered aircraft, Royal Aeronautical Society, RWTH Aachen University, SAE International, SpaceShipOne, Stall (fluid mechanics), Static pressure, Steady flight, Sting (fixture), Strobe light, Subsonic and transonic wind tunnel, Sud Aviation Caravelle, Supersonic wind tunnel, Theodore von Kármán, Turbofan, Turbulence, Ultrasound, United States Naval Academy, University of Göttingen, University of Manchester, V/STOL, Vertical wind tunnel, Viscosity, Vortex, Water tunnel (hydrodynamic), Weighing scale, Wind engineering, Wind turbine, World War II, Wright brothers, Wright Flyer, Wunibald Kamm, 1,1,1,2-Tetrafluoroethane. Expand index (49 more) »


Aerodynamics, from Greek ἀήρ aer (air) + δυναμική (dynamics), is the study of the motion of air, particularly its interaction with a solid object, such as an airplane wing.

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Airflow Sciences Corporation

Airflow Sciences Corporation (ASC) is an engineering consulting company based in Livonia, Michigan that specializes in the solution of industrial fluid flow problems.

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Angle of attack

In fluid dynamics, angle of attack (AOA, or \alpha (Greek letter alpha)) is the angle between a reference line on a body (often the chord line of an airfoil) and the vector representing the relative motion between the body and the fluid through which it is moving.

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Arsenal (Vienna)

The Arsenal is a former military complex of buildings in the south-east of Vienna in the third district.

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Aspect ratio (aeronautics)

In aeronautics, the aspect ratio of a wing is the ratio of its span to its mean chord.

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Automotive design

Automotive design is the process of developing the appearance, and to some extent the ergonomics, of motor vehicles, including automobiles, motorcycles, trucks, buses, coaches, and vans.

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The Ötztal is an alpine valley located in Tyrol, Austria.

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Bell X-2

The Bell X-2 (nicknamed "Starbuster") was an X-plane research aircraft built to investigate flight characteristics in the Mach 2–3 range.

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Benjamin Robins

Benjamin Robins (170729 July 1751) was a pioneering British scientist, Newtonian mathematician, and military engineer.

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Bernoulli's principle

In fluid dynamics, Bernoulli's principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy.

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Building code

A building code (also building control or building regulations) is a set of rules that specify the standards for constructed objects such as buildings and nonbuilding structures.

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California Institute of Technology

The California Institute of Technology (abbreviated Caltech)The university itself only spells its short form as "Caltech"; other spellings such as.

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A car (or automobile) is a wheeled motor vehicle used for transportation.

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Carl Richard Nyberg

Carl Richard Nyberg (May 28, 1858, – 1939) was the founder of Max Sieverts Lödlampfabrik, then one of the largest industries in Sundbyberg, Sweden.

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Clark Blanchard Millikan

Clark Blanchard Millikan (August 23, 1903 – January 2, 1966) was a distinguished professor of aeronautics at the California Institute of Technology (Caltech), and a founding member of the National Academy of Engineering.

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Compressible flow

Compressible flow (gas dynamics) is the branch of fluid mechanics that deals with flows having significant changes in fluid density.

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Computational fluid dynamics

Computational fluid dynamics (CFD) is a branch of fluid mechanics that uses numerical analysis and data structures to solve and analyze problems that involve fluid flows.

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The Aérospatiale/BAC Concorde is a British-French turbojet-powered supersonic passenger airliner that was operated from 1976 until 2003.

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De Laval nozzle

A de Laval nozzle (or convergent-divergent nozzle, CD nozzle or con-di nozzle) is a tube that is pinched in the middle, making a carefully balanced, asymmetric hourglass shape.

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Doriot Climatic Chambers

The Doriot Climatic Chambers (DCCs) are a pair of very large, highly specialized wind tunnels/environmental chambers located at the U.S. Army’s Soldier Systems Center (SSC) in Natick, Massachusetts.

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Dynamic pressure

Dynamic pressure (sometimes called velocity pressure) is the increase in a moving fluid's pressure over its static value due to motion.

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Dynamic similarity (Reynolds and Womersley numbers)

In fluid mechanics, dynamic similarity is the phenomenon that when there are two geometrically similar vessels (same shape, different sizes) with the same boundary conditions (e.g., no-slip, center-line velocity) and the same Reynolds and Womersley numbers, then the fluid flows will be identical.

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European Transonic Wind Tunnel

The European transonic wind tunnel (ETW) is a high-Reynolds-number transonic wind tunnel using nitrogen as test gas.

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Fan (machine)

A mechanical fan is a powered machine used to create flow within a fluid, typically a gas such as air.

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Flugan (The Fly) was an early aeroplane designed and built by Carl Richard Nyberg outside his home in Lidingö, Sweden.

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Fluid dynamics

In physics and engineering, fluid dynamics is a subdiscipline of fluid mechanics that describes the flow of fluids - liquids and gases.

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A flume is a human-made channel for water in the form of an open declined gravity chute whose walls are raised above the surrounding terrain, in contrast to a trench or ditch.

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France, officially the French Republic (République française), is a sovereign state whose territory consists of metropolitan France in Western Europe, as well as several overseas regions and territories.

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Francis Herbert Wenham

Francis Herbert Wenham (1824, Kensington – 1908), commonly referred to as Frank, was a British marine engineer who studied the problem of human flight and wrote a perceptive and influential academic paper which he presented to the first meeting of the Royal Aeronautical Society in London in 1866.

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Freon is a registered trademark of The Chemours Company, which uses it for a number of halocarbon products.

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Froude number

In continuum mechanics, the Froude number is a dimensionless number defined as the ratio of the flow inertia to the external field (the latter in many applications simply due to gravity).

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Full-Scale Wind Tunnel

The Full-Scale Tunnel (abbreviated FST, also known as the 30-by 60-Foot Tunnel) was a wind tunnel at NASA's Langley Research Center.

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George Cayley

Sir George Cayley, 6th Baronet (27 December 1773 – 15 December 1857) was an English engineer, inventor, and aviator.

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Green building

Green building (also known as green construction or sustainable building) refers to both a structure and the application of processes that are environmentally responsible and resource-efficient throughout a building's life-cycle: from planning to design, construction, operation, maintenance, renovation, and demolition.

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Gustave Eiffel

Alexandre Gustave Eiffel (born Bönickhausen;;; 15 December 183227 December 1923) was a French civil engineer.

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Henry H. Arnold

Henry Harley "Hap" Arnold (June 25, 1886 – January 15, 1950) was an American general officer holding the grades of General of the Army and General of the Air Force.

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Hydropower or water power (from ύδωρ, "water") is power derived from the energy of falling water or fast running water, which may be harnessed for useful purposes.

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Hypersonic wind tunnel

A hypersonic wind tunnel is designed to generate a hypersonic flow field in the working section, thus simulating the typical flow features of this flow regime - including compression shocks and pronounced boundary layer effects, entropy layer and viscous interaction zones and most importantly high total temperatures of the flow.

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An impeller (also written as impellor or impellar) is a rotor used to increase (or decrease in case of turbines) the pressure and flow of a fluid.

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Kármán vortex street

In fluid dynamics, a Kármán vortex street (or a von Kármán vortex street) is a repeating pattern of swirling vortices, caused by a process known as vortex shedding, which is responsible for the unsteady separation of flow of a fluid around blunt bodies.

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Konstantin Tsiolkovsky

Konstantin Eduardovich Tsiolkovsky (a; Konstanty Ciołkowski; 19 September 1935) was a Russian and Soviet rocket scientist and pioneer of the astronautic theory of ethnic Polish descent.

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Leadership in Energy and Environmental Design

Leadership in Energy and Environmental Design (LEED) is one of the most popular green building certification programs used worldwide.

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Lift coefficient

The lift coefficient (CL, CN or Cz) is a dimensionless coefficient that relates the lift generated by a lifting body to the fluid density around the body, the fluid velocity and an associated reference area.

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Lift-induced drag

In aerodynamics, lift-induced drag, induced drag, vortex drag, or sometimes drag due to lift, is an aerodynamic drag force that occurs whenever a moving object redirects the airflow coming at it.

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Lift-to-drag ratio

In aerodynamics, the lift-to-drag ratio, or L/D ratio, is the amount of lift generated by a wing or vehicle, divided by the aerodynamic drag it creates by moving through the air.

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List of wind tunnels

No description.

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Ludwig Prandtl

Ludwig Prandtl (4 February 1875 – 15 August 1953) was a German engineer.

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Mach number

In fluid dynamics, the Mach number (M or Ma) is a dimensionless quantity representing the ratio of flow velocity past a boundary to the local speed of sound.

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Modane is a commune in the Savoie department in the Auvergne-Rhône-Alpes region in southeastern France.

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The National Aeronautics and Space Administration (NASA) is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research.

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National Historic Landmark

A National Historic Landmark (NHL) is a building, district, object, site, or structure that is officially recognized by the United States government for its outstanding historical significance.

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In medicine, a nebulizer or nebuliser (see spelling differences) is a drug delivery device used to administer medication in the form of a mist inhaled into the lungs.

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Northrop Alpha

The Northrop Alpha was an American single-engine, all-metal, seven-seat, low-wing monoplane fast mail/passenger transport aircraft used in the 1930s.

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The Office National d'Etudes et de Recherches Aérospatiales (ONERA) is the French national aerospace research centre.

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Osborne Reynolds

Osborne Reynolds FRS (23 August 1842 – 21 February 1912) was a prominent Irish innovator in the understanding of fluid dynamics.

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Otto Lilienthal

Otto Lilienthal (23 May 1848 – 10 August 1896) was a German pioneer of aviation who became known as the flying man.

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Parachuting, or skydiving, is a method of transiting from a high point to Earth with the aid of gravity, involving the control of speed during the descent with the use of a parachute/s.

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Particle image velocimetry

Particle image velocimetry (PIV) is an optical method of flow visualization used in education and research.

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Peenemünde ("Peene Mouth") is a municipality on the Baltic Sea island of Usedom in the Vorpommern-Greifswald district in Mecklenburg-Vorpommern, Germany.

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Physical model

Physical model (most commonly referred to simply as a model but in this context distinguished from a conceptual model) is a smaller or larger physical copy of an object.

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Piezoelectricity is the electric charge that accumulates in certain solid materials (such as crystals, certain ceramics, and biological matter such as bone, DNA and various proteins) in response to applied mechanical stress.

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Pitot tube

A Pitot tube, also known as Pitot probe, is a flow measurement device used to measure fluid flow velocity.

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Poul la Cour

Poul la Cour (13 April 1846 – 24 April 1908) was a Danish scientist, inventor and educationalist.

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Pressure measurement

Pressure measurement is the analysis of an applied force by a fluid (liquid or gas) on a surface.

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Pressure-sensitive paint

Pressure-sensitive paint (PSP) is a method for measuring air pressure or local oxygen concentration, usually in aerodynamic settings.

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Reynolds number

The Reynolds number is an important dimensionless quantity in fluid mechanics used to help predict flow patterns in different fluid flow situations.

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Rocket-powered aircraft

A rocket-powered aircraft or rocket plane is an aircraft that uses a rocket engine for propulsion, sometimes in addition to airbreathing jet engines.

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Royal Aeronautical Society

The Royal Aeronautical Society, also known as the RAeS, is a British multi-disciplinary professional institution dedicated to the global aerospace community.

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RWTH Aachen University

RWTH Aachen University or Rheinisch-Westfälische Technische Hochschule AachenRWTH is the abbreviation of Rheinisch-Westfälische Technische Hochschule, which translates into "Rheinish-Westphalian Technical University".

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SAE International

SAE International, initially established as the Society of Automotive Engineers, is a U.S.-based, globally active professional association and standards developing organization for engineering professionals in various industries.

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SpaceShipOne is an experimental air-launched rocket-powered aircraft with sub-orbital spaceflight capability at speeds of up to 900 m/s (3,000 ft/s), using a hybrid rocket motor.

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Stall (fluid mechanics)

In fluid dynamics, a stall is a reduction in the lift coefficient generated by a foil as angle of attack increases.

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Static pressure

In fluid mechanics the term static pressure has several uses.

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Steady flight

Steady flight, unaccelerated flight, or equilibrium flight is a special case in flight dynamics where the aircraft's linear and angular velocity are constant in a body-fixed reference frame.

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Sting (fixture)

In experimental fluid mechanics, a sting is a test fixture on which models are mounted for testing, e.g. in a wind tunnel.

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Strobe light

A strobe light or stroboscopic lamp, commonly called a strobe, is a device used to produce regular flashes of light.

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Subsonic and transonic wind tunnel

0.4) (Barlow, Rae, Pope; 1999).

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Sud Aviation Caravelle

The Sud Aviation SE 210 Caravelle was a French short/medium-range jet airliner.

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Supersonic wind tunnel

A supersonic wind tunnel is a wind tunnel that produces supersonic speeds (1.2\leq the total pressure ratio over normal shock at M in test section: \frac \leq\left(\frac\right)_ Examples.

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Theodore von Kármán

Theodore von Kármán ((szőllőskislaki) Kármán Tódor; 11 May 1881 – 6 May 1963) was a Hungarian-American mathematician, aerospace engineer, and physicist who was active primarily in the fields of aeronautics and astronautics.

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The turbofan or fanjet is a type of airbreathing jet engine that is widely used in aircraft propulsion.

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In fluid dynamics, turbulence or turbulent flow is any pattern of fluid motion characterized by chaotic changes in pressure and flow velocity.

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Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing.

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United States Naval Academy

The United States Naval Academy (also known as USNA, Annapolis, or simply Navy) is a four-year coeducational federal service academy in Annapolis, Maryland.

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University of Göttingen

The University of Göttingen (Georg-August-Universität Göttingen, GAU, known informally as Georgia Augusta) is a public research university in the city of Göttingen, Germany.

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University of Manchester

The University of Manchester is a public research university in Manchester, England, formed in 2004 by the merger of the University of Manchester Institute of Science and Technology and the Victoria University of Manchester.

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A vertical and/or short take-off and landing (V/STOL) aircraft is an airplane able to take-off or land vertically or on short runways.

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Vertical wind tunnel

A vertical wind tunnel (VWT) is a wind tunnel which moves air up in a vertical column.

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The viscosity of a fluid is the measure of its resistance to gradual deformation by shear stress or tensile stress.

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In fluid dynamics, a vortex (plural vortices/vortexes) is a region in a fluid in which the flow revolves around an axis line, which may be straight or curved.

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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.

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Weighing scale

Weighing scales (or weigh scales or scales) are devices to measure weight.

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Wind engineering

Wind engineering is a subsets of mechanical engineering, structural engineering, meteorology, and applied physics to analyze the effects of wind in the natural and the built environment and studies the possible damage, inconvenience or benefits which may result from wind.

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Wind turbine

A wind turbine is a device that converts the wind's kinetic energy into electrical energy.

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World War II

World War II (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although conflicts reflecting the ideological clash between what would become the Allied and Axis blocs began earlier.

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Wright brothers

The Wright brothers, Orville (August 19, 1871 – January 30, 1948) and Wilbur (April 16, 1867 – May 30, 1912), were two American aviators, engineers, inventors, and aviation pioneers who are generally credited with inventing, building, and flying the world's first successful airplane.

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Wright Flyer

The Wright Flyer (often retrospectively referred to as Flyer I or 1903 Flyer) was the first successful heavier-than-air powered aircraft.

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Wunibald Kamm

Wunibald Kamm (April 26, 1893 – October 11, 1966) was an automobile designer, engineer, and aerodynamicist.

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1,1,1,2-Tetrafluoroethane (also known as norflurane (INN), R-134a, Freon 134a, Forane 134a, Genetron 134a, Florasol 134a, Suva 134a, or HFC-134a) is a haloalkane refrigerant with thermodynamic properties similar to R-12 (dichlorodifluoromethane) but with insignificant ozone depletion potential and a somewhat lower global warming potential (1,430, compared to R-12's GWP of 10,900).

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[1] https://en.wikipedia.org/wiki/Wind_tunnel

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