Aerodynamic center - Factbites

Aerodynamic center - Factbites
Where results make sense
About us | Why use us? | Reviews | PR | Contact us

Topic: Aerodynamic center

Note: these results are not from the primary (high quality) database.

	Center of Pressure
		Using the aerodynamic center as the location where the aerodynamic force is applied eliminates the problem of the movement of the center of pressure with angle of attack in aerodynamic analysis.
		When computing the trim of an aircraft, model rocket, or kite, we usually apply the aerodynamic forces at the aerodynamic center of airfoils and compute the center of pressure of the vehicle as an area-weighted average of the centers of the components.
		The movement of the center of pressure caused a major problem for early airfoil designers because the amount (and sometimes the direction) of the movement was different for different designs.
	www.grc.nasa.gov /WWW/K-12/airplane/cp.html (717 words)

	Center of Pressure
		In the same way that the weight of all the rocket components acts through the center of gravity cg, the aerodynamic forces act through a single point called the center of pressure cp.
		Since the center of pressure is an average location of the projected area, we can say that the area of the whole rocket times the location of the center of pressure cp is equal to the sum of the projected area of each component times the distance d of that component from the reference location.
		The center of pressure is on the axis, half way between the end planes.
	www.grc.nasa.gov /WWW/K-12/airplane/rktcp.html (548 words)

	cntrPress.html
		where CP is the center-of-pressure or chord position, and AC is the aerodynamic center.
		The aerodynamic center (AC) of the airfoil defines the center of rotation of the moment, as well as, the center of lift.
		On a sailboat, the combined center of effort of the sail should be 5% of the water line length behind the center of lateral resistance.
	ciurpita.tripod.com /rc/rcsd/cntrPress/cntrPress.html (1013 words)

	Center of Pressure
		Therefore, by the above argument, the fin center of pressure is located at the intersection of the quarter chord line and the mean aerodynamic chord.
		From the potential theory of subsonic flow, the center of pressure of a two dimensional airfoil is located one quarter of the length of its chord from its leading edge.
		The center of pressure, then, is a definite function of the body shape which determines the volume.
	www.brrd.ab.ca /chsp/science/jr_high/botrock/stability/barrowman.html (1323 words)

	NASA Ames Research Center
		NASA Ames Research Center (ARC) is located at Moffett Field, California, and specializes in research geared toward creating new knowledge and new technologies that span the spectrum of NASA interests.
		We have been the Research and Development Engineering Services contractor since 1989, performing work that includes the design of aerodynamic and space simulators, test and analysis of aerodynamic and space systems, research facility systems and instrumentation, and space flight hardware and instrumentation for experimental aircraft dedicated to flight and earth science research.
		Since 1998, we have also been the Aerospace Testing and Facility Operation/Maintenance contractor at Ames, with responsibility for operating, maintaining, and repairing facilities; planning, preparing, and conducting tests; planning, design, implementation, and checkout of development projects; and administrative services.
	www.sverdrup.com /eis/nasa_ames.shtml (193 words)

	NASA Ames Research Center
		NASA Ames Research Center (ARC) is located at Moffett Field, California, and specializes in research geared toward creating new knowledge and new technologies that span the spectrum of NASA interests.
		We have been the Research and Development Engineering Services contractor since 1989, performing work that includes the design of aerodynamic and space simulators, test and analysis of aerodynamic and space systems, research facility systems and instrumentation, and space flight hardware and instrumentation for experimental aircraft dedicated to flight and earth science research.
		Since 1998, we have also been the Aerospace Testing and Facility Operation/Maintenance contractor at Ames, with responsibility for operating, maintaining, and repairing facilities; planning, preparing, and conducting tests; planning, design, implementation, and checkout of development projects; and administrative services.
	www.sverdrup.com /eis/nasa_ames.shtml (193 words)

	Aerodynamic heating
		Mean Aerodynamic Chord Calculation software for computing the mean aerodynamic chord on a multi panel wing, and locating the center of lift.
		Aerodynamic Design of Maglev Vehicles Engineering and design of vehicles focused on aerodynamic aspects based on concurrent engineering, multidisciplinatory design optimization and the research of Joseph P. Schetz.
		aerodynamic cycling aerodynamic testing heating underfloor heating heating radiator heating system heating systems heating technology heating ventilation water heating incubation heating radiant heating solar heating
	www.serebella.com /encyclopedia/article-Aerodynamic_heating.html (193 words)

	Aerodynamic Vehicles Auto, Car and Truck Resources
		With its aerodynamic front profile, lower center of gravity, and aluminum construction, Cougar has an established reputation for its sleek look and ease of towing.
		These bikes are one of the most aerodynamic performance vehicles available with a track record dan 15-05-05 A new survey by ACNielsen Australia shows the internet the most common source of health...
		These lightweight, aerodynamic, stealth machines are taking their rightful place on the...
	www.fedcar.com /j/aerodynamicvehicles (193 words)

	NASA - Dryden Technical Report Server
		Notes: Oral presentation presented at the NASA High Angle-of-Attack Technology Conference, Inlet Aerodynamics and Propulsion Session, NASA Langley Research Center, September 17-19, 1996, Hampton, Virginia.
		One side of the panel was heated to high temperature to simulate aerodynamic heating during hypersonic flight.
		Longitudinal and lateral-directional estimates of the aerodynamic derivatives of the X-24B research aircraft were obtained from flight data by using a modified maximum likelihood estimation method.
	www.nasa.gov /centers/dryden/news/DTRS/1997/index.html (193 words)

	Horrell Hill Trailer Sales Center
		AERODYNAMICS: It is the vacuum which builds up behind the trailer, particularly at speeds over 44.6 mph, which causes "OTHER TRAILERS" to sway in cross winds and when passed by high sided vehicles, the horses are unbalanced and start to stress.
		Under all circumstances, whenever the trailer tries to push on the tow vehicle, the trailer brakes are being applied in direct proportion to the weight of the trailer at the time and at the rate of deceleration.
		Under ALL circumstances whenever the trailer tries to push on the tow vehicle the trailer brakes are being applied in direct proportion to the weight of the trailer at the time and the rate of deceleration.
	www.brenderupathorrellhill.com /finance.html (193 words)

	Captain Ferber Is In Trouble - Friday, September 18, 1903
		The terms center of pressure and center of gravity are still used today to explain aerodynamic forces.
		However, the center of pressure on a javelin remains behind the center of gravity and the direction of the center of pressure is opposite that of the gravitational force.
		Pressure is a measure of force over an area (Pressure = Force/Area), while the center of gravity refers to the force created by the weight of an object.
	wings.avkids.com /Book/Wright/history1_190347.html (414 words)

	Pressure Patterns On The Airfoil
		Center of pressure also moves along the chord line when angle of attack changes, because the two vectors are separated.
		Center of pressure remains relatively constant even when angle of attack is changed.
		Distribution of pressure over an airfoil section may be a source of an aerodynamic twisting force as well as lift.
	www.dynamicflight.com /aerodynamics/pres_patterns (272 words)

	Aeroelastic Tailoring Procedure to Optimize Missile Fin Center of Pressure
		It is often desirable, in the design of aerodynamic control surfaces, to predict the center of pressure, and hence the hinge moment, in order to optimize the actuator requirement.
		The axial center of pressure location of the flexible fin is shown relative to that of the steel rigid fin as a function of angle of attack for three supersonic Mach numbers.
		The design objective was to shift the center of pressure location forward to the maximum possible extent by varying the direction of the grooves of the flexible fin.
	www.nearinc.com /near/project/aeroelas.htm (404 words)

	90.07.02: Problem Solving Through Aviation
		Lift is the aerodynamic force produced by the motion of an airfoil (wing) through the air.
		Lift gives an airplane the ability to climb into the air and holds it up during flight.
		Lift is derived mainly from the flow of air over the object.
	www.yale.edu /ynhti/curriculum/units/1990/7/90.07.02.x.html (404 words)

	Frank Lu
		He joined UT Arlington in 1987 and he is presently Director of the Aerodynamics Research Center.
		Areas of Expertise: Fluid dynamics, shock and viscous phenomena, aerodynamic heating, jets and sprays, supersonic and hypersonic flows, propulsion, detonation, fuel reformation, fail-safe construction, shape memory alloys, flow visualization, and instrumentation and facility development.
		The ARC is unique amongst universities in that it houses a complex of experimental facilities from low speed to hypersonic.
	www-mae.uta.edu /faculty/lu.html (404 words)

	NASA Tech Transfer Resources AMES Research Center
		One major effort at Ames that could have a significant impact on the private sector is the development of automation tools for air transport management, which are already in operation at Dallas and Denver airports' air traffic control centers.
		Ames annually reviews proposals for use of the Numerical Aerodynamic Simulation Systems--which houses two Cray C-90 supercomputers, a Thinking Machine CM-5, and three Convex super-comput ers--by both NASA and outside research groups nationwide.
		NASA Administrator Dan Goldin has named Ames the Center for Excellence in Information Sciences.
	www.nasatech.com /resrep/AMES.html (992 words)

	Arnold Engineering Development Center - Wikipedia, the free encyclopedia
		The center operates 58 aerodynamic and propulsion wind tunnels, rocket and turbine engine test cells, space environmental chambers, arc heater, ballistic rangers, and other specialized units.
		Arnold Engineering Development Center Arnold Engineering Development Center is the most advanced and largest complex of flight simulation test facilities in the world.
		AEDC, as it is generally known, lies near Tullahoma, Tennessee and occupies much of the site of the former Camp Forrest, an Army base and World War II POW camp.
	en.wikipedia.org /wiki/Arnold_Engineering_Development_Center (168 words)

	center of pressure
		The point at which the aerodynamic lift on a rocket is centered.
	daviddarling.info /encyclopedia/C/center_of_pressure.html (88 words)

	CENTER OF PRESSURE
		CP The center of all aerodynamic forces on the completed rocket airframe including body, nose cone and fins.
		The Center of Gravity (CG) MUST be at least 1 body tube diameter (this is called one “caliber”) ahead of the Center of Pressure (CP).
		CENTER OF GRAVITY CG The point on a rocket airframe around which its weight is evenly balanced; the point where the rocket airframe will balance on a knife-edge.
	www.gawg.cap.gov /jacksoncomp/specevent/cpcg.htm (107 words)

	Forces around the center of pressure
		Figure (c) illustrates lift, drag, and moment about the quarter-chord point-all a function of the angle of attack a while figure (d) shows the lift, drag, and moment about the aerodynamic center.
		This force may be separated into lift and drag components, as shown in figure (b).
	www.centennialofflight.gov /essay/Theories_of_Flight/Two_dimensional_coef/TH14G2.htm (57 words)

	Center of pressure vs. aerodynamic center
		Center, rather it may be at or near the tip of the nose.
		Pressure is the same as the "Center of Lift".
		Further, The Center of Lift varies with Angle of Attack.
	www.groupsrv.com /science/about73039.html (319 words)

	The R/C Aircraft Proving Grounds - Center of Gravity Calculator
		This Center of Gravity Calculator is used to calculate the Center of gravity of a wing as well as the Mean Aerodynamic Cord of a wing.
		The R/C Aircraft Proving Grounds - Center of Gravity Calculator
		Simple calculator for determining The CG distance from Leading edge at the root chords when the percent MAC is known.
	www.geistware.com /rcmodeling/cg_calc.htm (116 words)

	Center of Gravity and Longitudinal Stability
		It acts as the Aerodynamic Center for the wing-tail combination.
		What happens as the center of gravity is moved from the nose of the airplane to the tail of the airplane?
		center of gravity for our purposes) at various locations along the x-axis.
	www.hanleyinnovations.com /stability.html (1155 words)

	NASA - NASA Names New Deputy Director For Glenn Research Center
		In 1980, he worked for NASA's Ames Research Center and was responsible for conducting systems analysis and large-scale aerodynamic and propulsion wind-tunnel tests of subsonic vertical or short take-off and landing concepts.
		He has extensive NASA headquarters and field center program-management experience in the formulation, advocacy and assessment of basic and focused research and technology programs.
		NASA announced today Richard S. Christiansen is the new Deputy Director for the agency's Glenn Research Center (GRC) in Cleveland, Ohio, effective Nov. 16.
	www.nasa.gov /home/hqnews/2003/oct/HQ_03339_GRC_dep_dir.html (1155 words)

	Environmental Science Research Center
		The goals of the Center are to promote excellence in environmental science research and to foster increased interdisciplinary collaboration among environmental science faculty on the Indiana University-Bloomington campus.
		The Center can be listed as an affiliation of the associated faculty in publications and in correspondence.
		The Center Director is Distinguished Professor Ronald A. Hites ( School of Public and Environmental Affairs and Chemistry).
	www.indiana.edu /~esrc (1155 words)

	NASA - Flight Research Projects
		A wide range of research activities are in progress at NASA Dryden Flight Research Center at any one point in time, ranging from validation of advanced aeronautical and control systems concepts and atmospheric flight testing of future space-access technology demonstrators to Earth science experiments.
		The F-15B Research Testbed is a modified twin-engine jet fighter that provides NASA, industry, and universities with long-term capability for the efficient flight test of aerodynamic, instrumentation, propulsion, and other flight research experiments.The F-15B Research Testbed is a unique airborne resource, a virtual "flying wind tunnel," among it's many capabilities.
		Research Facilities at NASA Dryden Flight Research Center provide its pilots, engineers, scientists and technicians a unique and highly specialized capability to conduct flight research programs unmatched anywhere in the world.
	www.nasa.gov /centers/dryden/research (957 words)

	Dryden Flight Research Center - News Room: News Releases: NASA DRYDEN EXPLORING UAV AERIAL REFUELING TECHNOLOGIES
		The F/A-18A tanker aircraft is undergoing flight test envelope expansion with an aerodynamic pod containing air-refueling equipment carried beneath the fuselage.
		Dryden Flight Research Center - News Room: News Releases: NASA DRYDEN EXPLORING UAV AERIAL REFUELING TECHNOLOGIES
		Flight research during AFF demonstrated that a 14-percent fuel saving could be achieved by the trailing F/A-18 flying in a precision station-keeping formation within the wingtip vortices of the lead aircraft.
	trc.dfrc.nasa.gov /Newsroom/NewsReleases/2002/02-68.html (394 words)

	Rotorcraft Aeromechanics Branch
		Advanced computational methodology research using computational fluid dynamics and multidisciplinary comprehensive analyses seeks to understand the complete rotorcraft's operating environment and to develop analytical models to predict rotorcraft aerodynamic, aeroacoustic, and dynamic behavior.
		NASA Ames Research Center, Moffett Field CA 94035-1000, (650) 604-5000
		The Aeromechanics Branch of the Army/NASA Rotorcraft Division is responsible for aeromechanics research activities that directly support the Department of Defense and the U.S. rotorcraft industry.
	halfdome.arc.nasa.gov (205 words)

	NASA Ames Research Center
		NASA Ames Research Center is located at Moffett Field, CA, and specializes in research geared toward creating new knowledge and new technologies that span the spectrum of NASA interests.
		Throughout the 1980s, we provided design support for various Ames aerodynamic facilities including the Unitary Plan Wind Tunnel, 12-Foot Propulsion Wind Tunnel, 11-Foot Tunnel, and 40x80x120-Foot Tunnel.
		Ames was founded in 1939 as an aircraft research laboratory by the National Advisory Committee on Aeronautics (NACA) and in 1958 became part of NASA.
	www.sverdrup.com /T&EEO&M/nasa_amesrc.shtml (154 words)

	Success Stories
		Engineers at the Arnold Engineering Development Center (AEDC) are using the Transient Heat Transfer capabilities of MSC.Nastran for Windows Version 3.0 to aid in the design of miniature transducers for transient heat transfer measurements in the AEDC's hypersonic flow wind tunnels.
		AEDC is a national aerospace ground test complex operated by the Air Force consisting of several wind tunnels and other facilities supporting propulsion, aerodynamic, reentry, transatmospheric and space flight testing.
		The primary difference in the wind tunnels at Arnold Center and Tunnel 9 is continuous flow vs transient flow.
	www.mscsoftware.com /success/models_month/0698mod.cfm (522 words)

Try your search on: Qwika (all wikis)