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searching for Flow separation 76 found (139 total)

Vortilon (715 words) [view diff] exact match in snippet view article find links to article

layer. A more turbulent boundary layer, in turn, delays the local flow separation. Vortilons are often used to improve low-speed aileron performance

Wind tunnel (6,705 words) [view diff] exact match in snippet view article find links to article

on the helmet can cause considerable neck strain on the driver, and flow separation on the back side of the helmet can cause turbulent buffeting and thus

Boundary layer control (1,196 words) [view diff] exact match in snippet view article find links to article

behaviour of fluid flow boundary layers. It may be desirable to reduce flow separation on fast vehicles to reduce the size of the wake (streamlining), which

Flow Separation (251 words) [view diff] case mismatch in snippet view article find links to article

Flow Separation is a red and white, marbled repainting of the John J. Harvey fireboat by artist Tauba Auerbach. The project was a collaboration with the

Vortex lift (881 words) [view diff] exact match in snippet view article find links to article

airfoil section, a leading-edge stall and loss of lift, as a result of flow separation at the leading edge and a non-lifting wake over the top of the wing

Bedform (1,243 words) [view diff] exact match in snippet view article find links to article

non-cohesive material. These deposits then propagate downstream via a flow separation process, thus developing bedform fields. The origin of the defects

Partitioning Communication System (210 words) [view diff] exact match in snippet view article find links to article

computer and communications security architecture based on an information flow separation policy. The PCS extends the four foundational security policies of

Rocket engine nozzle (3,065 words) [view diff] exact match in snippet view article find links to article

exit pressure is less than approximately 40% that of ambient, then "flow separation" occurs. This can cause exhaust instabilities that can cause damage

Unidirectional Data Flow (computer science) (59 words) [view diff] no match in snippet view article

mutations on an immutable data state is called unidirectional data flow. Separation of state changes from presentation has many benefits and was popularized

Anti-shock body (670 words) [view diff] exact match in snippet view article find links to article

prevent outward flow. The extension was only long enough to prevent flow separation.: 52 Whitcomb stated that the anti-shock body was no longer required

Wing (1,693 words) [view diff] exact match in snippet view article find links to article

that has just landed but is still moving. Vortex generators mitigate flow separation at low speeds and high angles of attack, especially over control surfaces

Lifting body (2,479 words) [view diff] exact match in snippet view article find links to article

Northrop HL-10 was developed at NASA Langley Research Center. Air flow separation caused the crash of the Northrop M2-F2 lifting body.[citation needed]

Eulerian coherent structure (271 words) [view diff] exact match in snippet view article find links to article

floating debris, oil spills, surface drifters, and control of unsteady flow separation. Serra M., Haller G. (2016). "Objective Eulerian coherent structures"

Schreder HP-15 (237 words) [view diff] exact match in snippet view article find links to article

fast flight, but had disappointing climbing ability, due to extensive flow separation on the upper wing surfaces during slow flight and Schreder and the

Boeing YC-14 (1,772 words) [view diff] exact match in snippet view article find links to article

effect on the spreading of the jet flow through the nozzle. This led to flow separation near the flap, and a decrease in the effectiveness of the USB system

BERP rotor (1,508 words) [view diff] exact match in snippet view article find links to article

degrees) where any significant angle of attack will cause leading edge flow separation. Because the leading edge is so highly swept, this leading edge separation

Confluence (3,509 words) [view diff] exact match in snippet view article find links to article

flow zones (CFZ). These include Stagnation zone Flow deflection zone Flow separation zone / recirculation zone Maximum velocity zone Flow recovery zone

Bargeboard (aerodynamics) (432 words) [view diff] exact match in snippet view article

vortices that energize the airflow to the underbody, which can help delay flow separation and allow the use of more aggressive diffuser profiles. In recent years

Hypersonic Technology Demonstrator Vehicle (1,617 words) [view diff] no match in snippet view article find links to article

ignition and sustained combustion of scramjet engine at hypersonic flow, separation mechanisms and characterised thermo-structural materials. The HSTDV

Waboba (1,170 words) [view diff] exact match in snippet view article find links to article

on water if it was soft and had a Lycra covering which enables easy flow separation at the hydrodynamic stagnation point. In 2004, Jan created the commercial

Skin friction line (209 words) [view diff] exact match in snippet view article find links to article

(PDF)[permanent dead link] Chapman, G. T. Topological classification of flow separation on three-dimensional bodies AIAA, Aerospace Sciences Meeting, 24th

Dynamic soaring (1,459 words) [view diff] exact match in snippet view article find links to article

faces the wind, and has a steep back (leeward) side, it can cause flow separation off the top of the hill, resulting in a layer of fast air moving over

Lift-to-drag ratio (1,821 words) [view diff] exact match in snippet view article find links to article

skin friction drag plus a small percentage of pressure drag caused by flow separation. The method uses the equation: C D , 0 = C fe S wet S ref , {\displaystyle

Vena contracta (547 words) [view diff] exact match in snippet view article find links to article

Swartswood Lake Dam, the river is forced to narrow by a concrete bridge support. Flow separation is evident at the sharp bend, just above the vena contracta

Spoiler (car) (2,360 words) [view diff] exact match in snippet view article

gentler slope from the roof to the spoiler, which helps to delay flow separation and the higher pressure in front of the spoiler can help reduce the

John Ockendon (410 words) [view diff] exact match in snippet view article find links to article

leading to flows in porous media, ship hydrodynamics and models for flow separation.[citation needed] He moved on[when?] to free and moving boundary problems

Ground effect (cars) (2,458 words) [view diff] exact match in snippet view article

separated the channel from above-car aerodynamics. He investigated how flow separation on the undersurface channel could be influenced by boundary layer suction

Plasma actuator (3,419 words) [view diff] exact match in snippet view article find links to article

and low-speed flow control using dielectric barrier discharges for flow separation and 3D wake control and sound control and sliding discharges. The present

Shock wave (3,954 words) [view diff] exact match in snippet view article find links to article

structures, such as boundary layers, to produce new flow structures such as flow separation, transition, etc. Blast wave Shock waves in astrophysics Atmospheric

Chine (aeronautics) (757 words) [view diff] exact match in snippet view article

smoothly over their profile and beyond, avoiding the side forces due to flow separation and stagnation. Again the effect is stronger at higher speeds, and

Inviscid flow (1,719 words) [view diff] no match in snippet view article find links to article

turbulent wakes but these phenomena cannot be modelled using inviscid flow. Separation of the boundary layer usually occurs where the pressure gradient reverses

Secondary flow (2,671 words) [view diff] exact match in snippet view article find links to article

prerotation, or intake vorticity, tip clearance flow (tip leakage), flow separation when operating away from the design condition, and secondary vorticity

Area rule (2,401 words) [view diff] exact match in snippet view article find links to article

antishock bodies on the rear of the wings Oilflow visualization of flow separation without and with antishock bodies Northrop F-5 showing fuselage waisting

Turbulence modeling (2,073 words) [view diff] exact match in snippet view article find links to article

with high degrees of anisotropy, significant streamline curvature, flow separation, zones of recirculating flow or flows influenced by rotational effects

Nitrogen generator (1,602 words) [view diff] exact match in snippet view article find links to article

partial pressures on the external and internal membrane surface gas flow separation is accomplished. Economic benefits: By substitution of cryogenic or

R-77 (2,889 words) [view diff] exact match in snippet view article find links to article

devices are used on the OTR-23 Oka, and USAF uses them on MOAB). The flow separation which occurs at high angles of attack enhances its turning ability

Mach tuck (1,317 words) [view diff] exact match in snippet view article find links to article

beginning; areas of supersonic flow, together with shock waves and flow separation, were present on the wing. This condition was known at the time as

Supercritical airfoil (2,109 words) [view diff] exact match in snippet view article find links to article

trailing edge. This shock causes transonic wave drag and can induce flow separation behind it; both have negative effects on the airfoil's performance

Tauba Auerbach (1,518 words) [view diff] case mismatch in snippet view article find links to article

Auerbach and Eliane Radigue, MOCA Cleveland, Cleveland, OH 2018-2019 Flow Separation: John J. Harvey Fireboat, commissioned by Public Art Fund and 14-18

Antonov An-10 (2,517 words) [view diff] exact match in snippet view article find links to article

onset of Mach buffet to M0.702. Due to being placed in an area of flow separation, the new ventral fins caused unpleasant vibrations. Following results

Decentralized wastewater system (2,535 words) [view diff] exact match in snippet view article find links to article

cover large areas at lower costs. Decentralized systems allow for flow separation or source separation, which segregates different types of wastewater

RS-25 (10,549 words) [view diff] exact match in snippet view article find links to article

pressure. At sea level, a nozzle of this ratio would normally undergo flow separation of the jet from the nozzle, which would cause control difficulties

Tubercle effect (1,577 words) [view diff] exact match in snippet view article find links to article

increased lift, as the flow separation occurs in the troughs and stays there. The vortex created by the tubercle delays flow separation toward the trailing

Asymmetric flow field flow fractionation (1,001 words) [view diff] exact match in snippet view article find links to article

against the sample flow. As particles flow along the channel the cross flow separation field pushes the molecules towards the bottom of the channel. As they

Surfboard fin (3,693 words) [view diff] exact match in snippet view article find links to article

when the surfer starts to turn, the dimpled fin surface delays the flow separation, reducing cavitation (the separation bubble) allowing the foil to maintain

Distributed propulsion (1,056 words) [view diff] exact match in snippet view article find links to article

functions. These include: Direct reenergizing of the boundary layer Flow separation control Powered lift/circulation control Viscous drag reduction Vortex/vorticity

K-epsilon turbulence model (1,083 words) [view diff] exact match in snippet view article find links to article

with high degrees of anisotropy, significant streamline curvature, flow separation, zones of recirculation and influence of mean rotation effects. K-epsilon

Supersonic aircraft (3,981 words) [view diff] exact match in snippet view article find links to article

upper surface of the wing at high speeds and attack angles, delaying flow separation, and giving the aircraft a very high stall angle. It also solves the

Wing configuration (5,548 words) [view diff] exact match in snippet view article find links to article

the wing, allowing the aircraft to fly at lower air speeds without flow separation or stalling. A slat may be fixed or retractable. Flap: a hinged aerodynamic

Bumblebee (11,481 words) [view diff] exact match in snippet view article find links to article

aerofoils. The method assumes small amplitude oscillations without flow separation. This ignores the effect of dynamic stall (an airflow separation inducing

TransAsia Airways Flight 791 (1,657 words) [view diff] exact match in snippet view article find links to article

modified by the severe ice accumulated on the wings producing the flow separation. Before [the] autopilot disengaged, the aerodynamic of the aircraft

Fish scale (7,859 words) [view diff] exact match in snippet view article find links to article

Colin; Young, Mark T. (14 January 2015). "Surface drag reduction and flow separation control in pelagic vertebrates, with implications for interpreting

Turbofan (11,175 words) [view diff] exact match in snippet view article find links to article

diffusion may be allowed ( and pressure rise obtained) before unacceptable flow separation occurs (ie losses) may be regarded as a loading limit. Static pressure

Bouncing ball (5,242 words) [view diff] exact match in snippet view article find links to article

Stoke's law, the Bernoulli equation, turbulence, boundary layers, flow separation" (PDF). Special Topics: An Introduction to Fluid Motions, Sediment

Bio-MEMS (9,646 words) [view diff] exact match in snippet view article find links to article

separation can be achieved by capillary electrophoresis or continuous-flow separation. In capillary electrophoresis, a long thin tube separates analytes

VFW-Fokker 614 (2,549 words) [view diff] exact match in snippet view article find links to article

travel, interference between the wing and pylon flow fields resulted in flow separation, which in turn limited the cruise speed to M0.65. A recent aircraft

Swept wing (8,233 words) [view diff] exact match in snippet view article find links to article

so are thicker and more susceptible to transition to turbulence or flow separation, also the effective aspect ratio of the wing is less and so air "leaks"

Energy-efficient driving (4,058 words) [view diff] exact match in snippet view article find links to article

deflectors (or "spoilers", when designed for downforce and not enhanced flow separation), running boards, and push bars, as well as using narrower and lower

Scramjet (8,235 words) [view diff] exact match in snippet view article find links to article

problems. Boundary layer modeling, turbulent mixing, two-phase flow, flow separation, and real-gas aerothermodynamics continue to be problems on the cutting

Concorde (23,508 words) [view diff] case mismatch in snippet view article find links to article

"slender delta" concept. The team, including Eric Maskell whose report "Flow Separation in Three Dimensions" contributed to an understanding of the physical

Fairey Delta 2 (4,867 words) [view diff] exact match in snippet view article find links to article

low thickness/chord ratio at the root, and low-speed lift through flow separation at the leading edge which creates a rolled up vortex on top of the

Rocket engine (11,741 words) [view diff] exact match in snippet view article find links to article

pressure of about one-third of ambient pressure (often limited by flow separation in nozzles) and up to a maximum limit determined only by the mechanical

Draft tube (801 words) [view diff] exact match in snippet view article find links to article

diffuser with half angle generally less than equal to 10° to prevent flow separation. It is usually employed for low specific speed, vertical shaft francis

Cavitation (9,115 words) [view diff] exact match in snippet view article find links to article

the irregularities on the spillway surface will cause small areas of flow separation in a high-speed flow, and, in these regions, the pressure will be lowered

Jet engine performance (16,832 words) [view diff] exact match in snippet view article find links to article

higher pressure ratio but flow in compressors is very susceptible to flow separation because it is going against a rising pressure (gas naturally flows

Components of jet engines (6,529 words) [view diff] exact match in snippet view article find links to article

with excess air spilling round the lip. Radiusing of the lip prevents flow separation and compressor inlet distortion at low speeds during crosswind operation

Mujeeb R. Malik (1,029 words) [view diff] case mismatch in snippet view article find links to article

“Wall-Resolved Large-Eddy Simulations of Transonic Shock-Induced Flow Separation,” AIAA Journal, Vol. 57, No. 5, 2019, pp. 1955–1972. Iyer, P. and Malik

Reynolds stress equation model (2,621 words) [view diff] exact match in snippet view article find links to article

turbulent flows. For instance, in flows with streamline curvature, flow separation, flows with zones of re-circulating flow or flows influenced by mean

History of aerodynamics (3,896 words) [view diff] exact match in snippet view article find links to article

flows or very slender plates at large inclination angles which lead to flow separation. Air resistance experiments were carried out by investigators throughout

RD-0126 (560 words) [view diff] exact match in snippet view article find links to article

testing confirmed the predicted properties of the engine and showed that flow separation did not occur within the nozzle when the non-regeneratively cooled

Protaetia cuprea (2,612 words) [view diff] exact match in snippet view article find links to article

across the wing span, improve flow attachment, increase lift, and delay flow separation during dynamic movements, which is essential for aerodynamic efficiency

Compressor map (6,246 words) [view diff] exact match in snippet view article find links to article

position of the other end of the line is located by blade or passage flow separation. There is a well-defined, low-flow boundary marked on the map as a

Separator (oil production) (6,171 words) [view diff] no match in snippet view article

inertia causes the liquid to continue in the original direction of flow. Separation of liquid mist from the gas thus can be effected because the gas will

Joseph Katz (professor) (5,108 words) [view diff] case mismatch in snippet view article

108(3) (1986) 373–376. J. Katz, Cavitation Phenomena within Regions of Flow Separation, Journal of Fluid Mechanics 140(MAR) (1984) 397–436. J. Katz, A. Acosta

Physics of whistles (12,475 words) [view diff] exact match in snippet view article find links to article

instability has been shown to occur in other situations. One was the flow separation on the upper side of delta-shaped airfoils of high-speed aircraft (Concorde)

Pattern (2,557 words) [view diff] case mismatch in snippet view article find links to article

ISBN 978-0070676022. Dover (1994): ISBN 978-0486434858. Lewalle, Jacques (2006). "Flow Separation and Secondary Flow: Section 9.1" (PDF). Lecture Notes in Incompressible