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Kite-Energy Glossary
... being built since January 7, 2009.
Anyone is invited to help build an effective kite-energy glossary for all   Send to News@energykitesystems.net

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z             Other glossaries of interest



http://www.youtube.com/watch?v=5gN-DJrITp8
dancing kites
   [two or more kites flying same circle or other figure from a lofted central point from which main tether begins downward journey; this saves the main long tether from sweeping and subsequent costing drag from such sweep. Rotokite is an instance.   Also, see the record of fighter kites dancing from one main tether (video above).  Think coteries, flowers, branching, bifurcations, trifurcations, quadfurcations.   Also, consider following the kite arches with branches that in each branch could have dancing kite complexes from the arch; see KiteLab for some developments therein.  See Peter R. Payne patent drawings (filed in 1975).
Click image for full instruction.

        Also, see Moritz Diehl where he points out that
"absolute line drag is reduced, as only short lines move fast in cross wind direction" and "centrifugal forces "become our friends" and" curve flying does not
generate losses anymore. Kite masses can be higher. Kites can compensate each other during retraction, without lift control. Get 14 kW per square meter wing, 40% better than single kites!" p. 28 of SourceHere.   See also: balanced kites

    The AWE Community is invited to advance the "dancing kite" file for all.  
See:  M2699 and its following posts.   See also: M2704 and its following posts.
 


  • Daniel Bernoulli
  • Darin Selby
  • date
  • Dave Culp
  • Dave Santos
  • David Barish
  • Davis
    • Patrick Davis
    • Davis Straub (competing HG since 1990; publisher)
    • Joe Davis (7th grade self-soarer newbie)
  • DARPA  Defense Advanced Research Projects Agency
  • Darrieus beads on cables    M389   Consult Darin Selby.  Contra-rotating sets of Darrieus beads on cables.   
     See also H-Darrieus  M390  
  • Darrieus wind turbine      is a VAWT....or cabled on terrain would have a horizontal axis.     Wiki.
  • DAQ       wiki   data acquisition


  • DBF    (downwind leg, base leg, final leg) ... a landing pattern
  • DBR   dirigible body rotator        ?????????
     
  • DB Murray, dbmurr, db,    [b. Dec. 1960], architect,
  • DDT&E, DTE, DT&E,    Development, test, and evaluate  
          
    Design, Development, Test & Evaluation  , etc.
     
  • deal wood      This kind of wood has been mentioned in some kite plans.  Our note here is not a recommendation, but a support for reading some historical kite plans.  There is a note also that talks about timber grading and sections of cut log where a "deal section" is specified: http://www.ridgeons.co.uk/timber-grading/
     

    Family: Pinaceae             Commercial Names: Red deal or ‘red’ if imported from Europe (northern UK); yellow deal or ‘yellow’ (southern UK). Timber grown in the UK is called Scots pine. Baltic, Finnish, Swedish, Polish etc., redwood or yellow deal according to country of origin.         Reference: http://www.abbeywoods.ie/softwoods.htm

     

  • death grip
  • dealers, smallAWECS dealer, largeAWECS dealer,
  • death comet  :: "Death-Comet :: An unreliable high-mass high-speed kite"
  • death gaggle    
  • death kites    destructive kites   war kites   military kites defense kites  
                       This is antipolar to liberational kiting.
  • decalage    wiki
  • DECC  Department of Energy and Climate Change (DECC) in UK

     

  • decelerators
  • deck, upper deck, lower deck  
     
  • decloaking     How to make AWES visible to radar upon breakaway when radar footprint was nil before breakaway???
        
  • dedicated marketer of AWECS
  • deep-sky specialist
  • defense kites
  •  
  • deflated
  • deflating
  • deflect, deflecting, deflecting panel, deflecting sail, deflecting wing,
  • deform
  •  
  • deformable wing, deformable kite wing, deformable kites   Discuss soft kites, limp kites, cloth kites.     Consider against "rigid" wings for kite systems. Consider "morphable" wings for kite systems.
     
  • Degen  and his effective climb into the air with some assistance ...
    • v
    • v
  • degree
  • degrees of freedom (DOF)
    "motions of "hunting" dynamics in six degrees-of-freedom (pitch, roll, yaw, heave, sway, surge), that all kites naturally display, in varied proportions."  ~ Dave Santos  (DaveS), CTO, kPower, Inc., Nov. 8, 2016.  Source: Message 21166
  • depth of field (DoF)
  • "Delft Kite"    rare. Used in prose at AirborneWindEnergy/conversations/messages/10972 [[Author probably did not mean http://www.miniaturekiteguild.org/foto/main.php?g2_itemId=779  but probably meant the wing in a kite system used by the TU Delft Kite Power team, something as HEREimage.]]
  • Delft University of Technology
  • "Delphi analysis on airborne wind energy"
  • delta
  • delta wing
  • delta wing kite
  • delta wing hang glider
  • delta metal      wiki/delta_metal
  • demand response  (DR)
  • demo       demonstration
  • demoing                     demonstrating
  • demonstrator
  • dendritic fractal tensile loadpath network      AWES6323  
    (slow down scaling 3-D cubic-mass penalty in quasi-2-D soft kite wings)
  • dense arrays     of  kites, of kite-energy systems,
  • density
  • destination
  • depth of field (DoF), degrees of freedom (DOF)
  • deployable tensegrity tower
  • deployed
  • deploying
     
  • deployment
    • deployment loads
    • deployment parachute loads
    • Some AWES will be deployed at altitude; the deployment will have specific loads occur related just to the deployment operation.
       
  • depower     Depower, also called sheetability
  • depower ability
  • depower capabilities
  • depowering kite systems
  • depower line, replacement depower line, wear of depower line, abrasion-resistant depower line,
    • "The depower line carries the entire load of the kitesurfer"
    •  
  • depressor vane
  • De Prony brake          M165       Standard AWE
  • de-sanding    Parafoils may have sand-leak pathways instead of absolute cell closures that retain sand.
  • descend
  • descending
  • descension
  • descent
     
  • desirements          Aspects of a system that are desired. What is desired in an AWECS?   Contrast with "requirements."  
     
  • destructive kites
  • destructive resonance
  • "desymmetry"   Rather see dissymmetry and asymmetry
     
  • detection of airspace aspects
    • air mass detection,   air mass sensing
    • LIDAR
    • SODAR
    • RADAR
    • LADAR
    • detecting wind shears
    • detecting thermals and their edges and cores
    • turbulence detection
    • turbulence visualization
    • "seeing" ahead of where the wing will be in a moment
    • v
    • v
  • Dewar flask
     
  • DFA                                            (several uses in AWES)
  •  
  • DFRC  Dryden Flight Research Center      wiki       ... a NASA center in California   Home
  • diagnostics
  • diagnostic system
  • Dickenson Ski Kite       ... a Rogallo hang glider stiffening the Rogallo Wing in an adaptation to the near-standard wing built by Ryan Aeronautical following the conferences and communications and associated leadership of Francis M. Rogallo within NASA.  The tinkerer builder operated in 1963-1968 with a few versions from rough kite to finished aqua-glider. Others before that kite-glider demonstrated all the mechanical arts involved. A concerted effort by a beloved friend of Dickenson bullied unearned accolades that had text strictly contrary to face; such sparked a sharpening of hang gliding history; but the bully retains a mammoth text that exhibits a huge non-sequitur that tries to have overclaim ride associatively with acceptable facts.
  • diedral, variant of dihedral
  • dihedral
  • Diem, historian:   Walter Diem's Lost Golden Age of "Wetterdrachen" (Weather Kites)
  • differential line actuator
  • diffuser
  • diffuser augmenter
  • diffusion
  • DIO    driver-induced oscillation.  When kiting, the moving driving ground resistive set may have motions, accelerations, changes of motion texture, etc. that might induced oscillations in the tether set and the wing set of a a kite system.
  • diode
    • diode rectified
    • See also mechanical diode
  • dipping boom    M109
  • direct current
  • dirigible
    • (adjective)  capable of being steered
    • (noun)  airship
    • dirigible kite
    • Dirigible kite-drawn buoy by Prof. J. Woodbridge Davis
  • DIRIGIBLE KITE-DRAWN BUOY.   Dirigible kite-drawn buoy

    This is the buoy invented by Prof. J. Woodbridge Davis for conveying messages, food, or life-lines between disabled vessels and the shore. The buoy is drawn over the water by the kite-line, like the one shown above, but the setting of the keel and the three guy-ropes give it whatever direction is desired

     


  •  
    THE KITE-BUOY IN SERVICE.
  • dirty-wind          Dirty wind provides some niche AWE opportunities.

  • disposable flying wind turbines         M3625

  • distantAWE

  • DFA   Distributed Flight Array         http://www.idsc.ethz.ch/Research_DAndrea/DFA

  • dirt outs    (lets dirt in kite cells be removed)

  • disc, disk   

  • displacement planer

  • disreefing

  • distributed power

  • dissymmetry of lift in rotor     wiki 

  • distribution of energy

  • dither

  • dithering

  • divert, diverting,

  • DIY   do-it-yourself

  • D lines      video1

  • Dobos      See: Gábor Dobos

  • dock, docking, kite dock, kite docking, AWE docking,

  • DOF      depth of field (DoF),

  • DOF     degrees of freedom
     

  • dogstake, Dogstaking http://kitelife.com/forum/topic/4251-more-rev-dogstake/


  •  

  • doldrums      wiki

    • Lift at the doldrums?  How might that lift be mined for soaring records? Energy-production?
       

  • dome-like parachute

  • Domina Jalbert

  • donut pulley, parrels,        Image1    Image2  

  • door, trawl door,  a paravane  (water-kite) that opens trawl nets      images

  • Doppler effect

  • Laser Doppler velocimetry (LDV), also known as laser Doppler anemometry (LDA) is a technique for measuring the direction and speed of fluids (or any other material that is processed like metal, paper etc) like air and water.
     

  • Doppler laser        GeneralLink
     

  • Dorrington    http://www.eng.qmul.ac.uk/staff/publications.php?g.dorrington@qmul.ac.uk

  • DOTA   Department of Tethered Aviation

  • do tank    (distinct from think tank; see also kite-do tank and kite-think tank)

  • double-action ratchet
     

  • double freewheel    
     

  • Double ParaSled  Ref1

  • double-phase

  • Related: "Two-Stage Mechanical Oscillator -- A Mechanical Amplifier"

  • doubler

    •  

  • double ratchet drive

  • double redundant flight control system

  • double-string tether     The two strings may be loose or snugged or sheathed or inside one another depending on niche purpose. Consider tethers made of n-strings where n is any positive integer.
     

  • Douglas J. Amick

  • dousings        Use kill lines or RC or robotic methods to put a kite out of commission; using such stoppers is a form of dousing or downing a kite or kite system.

    • dowse - slacken; "douse a rope"
      douse
      slacken, remit - make slack as by lessening tension or firmness

  • dowel sled kite        "The MBK Dowel Sled Kite"      

  • down    

    • dowse - slacken; "douse a rope"
      douse
      slacken, remit - make slack as by lessening tension or firmness

    • opposite of up

  • downbursts       wiki       |  AWES6217  |  a type of windfield turbulence   | 

  • down feathers    wiki
     

  • downplaning   "he main canopy and the reserve were beginning to interfere with each other. This is normal, but if it isn't checked then there is a risk of downplaning - an undesirable interplay between the glider and the reserve that results in an accelerating descent rate"
     

  • down selection, down selecting

    • Engineering management

      • Engineering decision process that selects from options in order to move into builds  AWES7352

      • "the engineering management requirement to pare down the long list of AWES ideas to only the most essential. A huge fog of brainstormed ideas now hide golden core principles that will endure. It is nearing the time to correctly choose, or lose."   DaveS         4 Oct 2012   

      • Without down selecting there may be a tendency to have "paralysis by analysis" where attention and investment is not focused into a build-and-serve actuality. Holding out for "best" will not practically serve practical needs.  JpF          4 Oct 2012 

      • Reduction in the number of contractors or sub-contractors working on a project, as it moves from one phase to another, in accordance with the criteria established usually in the request for proposal (RFP) documents.  Read more

      • http://grouper.ieee.org/groups/1901/P1901_Work_Flow.pdf

      •  

    • Open markets may tend to pare offerings; a down selecting occurs by purchase decisions; products not purchase will probably stop being produced.

    • Art using down feathers

      • Wing construction where down feathers are selected for certain niche regions of a wing. Same for art constructions.

      • Collecting the down feathers from various species of birds

      • Art pieces using down feathers will have the artist in a mode of down selection. The art piece might be kite system tail items, decoration, trailing-edge functioning pieces, etc.
         

  • down-tie cables, down-tie lines,

  • downtime

  • downtime costs

  • downwash vane        

  • downwind     leeward   wiki

  • downwind design

  • downwinders     

    • kiteboarding downwinders       Travel generally downwind with one's kiteboard   Art1

  • downwind kite

  • downwind kite-power system (DWKPS)   as opposed to crosswind kite-power systems (CWKPS)

  • downwind traveling phase,       Opposite to upwind traveling phase.      downwind traveling phase

  • downwind travel rate 

  • DP 

    • Inverse of DS or dynamic soaring might be DP- Dynamic Plummet       AWES6393

    • v 

  • Dr. Ockels

  • drachenfestival       drachen festival          esp., German kite festival

  • Drachen Foundation                     

  • dracone barge      wiki

  • drag         wiki    |   wind resistance   |  opposes thrust   |

    • Drag has its useful roles.
      Zero drag
      for a body moving through another body might not be possible.
      However, explore quantum hydrodynamics, superfluidity, and superconductivity as part of an exploration of related boundary questions.

    • types of drag

      • parasitic drag

      • induced drag, lift-induced drag,

      • profile drag. form drag

      • cyclic trim drag

      • viscous drag

      • skin friction

      • interference drag

      • wave drag

      •  

  • drag-based wind turbine      (samples: downwind parachute wind grabbers, flap turbine, Savonius)

  • drag coefficient       wiki 

  • dragefest           kite festival in Denmark   

  • drageflyvning

  • drag-inducing damping means

  • drag mode        Some AWES emphasize production of power in the drag mode.

  • drag power

  • drag power production 

    • on-board generation

    • See sister: lift power production

    •  

  • drag profile

  • drag range

  • drag reels

  • drag usefulness

    • permits slowing

    • permits termination processes to occur for moving bodies

    • parachutes, drogue chutes

    • utilized in some energy-production systems

    • manufacturing processes

    • v

  • draught kite 
     
     

  • draw

  • drawing

  • drawing a cable, drawing a string,

  • D-rib, d-ribs.  Sometimes as drib or dribs    Sometimes the hypen is dropped and a space used:  "D rib"  Sometimes with capitalization:   D-Rib         "d-rib technology"
     "The innovative D-rib technology supports the kite from the inside, reducing the amount of line drag by reducing the bridle."

  • drift

  • drift sock

  • drive

  • drive belt, drive belts, drive belting,

  • driver

  • driving or driven propeller


  • driving cranks with kite systems
    • drive ropes
    • v

  • driving pulley
  • driven linkage
  • driven pulley
  • driven shaft
  • driven train   (shatt, gearbox, generator, etc. driven by the AWES)
  • drive rope, drive ropes  AWES7536
  • Drive Shaft in Kite Energy
  • drive unit of control rope     See also KCU      KSU
  • drogue
  • drogue force      or tail drag
  • drogue train                           for air or for water or for combined air-water systems
  • drone, drones     Kite Drones
  • droop      See also sag, catenary,
  • droops     ::  control surface    "wing droop"      Ref1
  • drop driving line
  • drop line
  • drop-thread system adopted by Goodyear for inflatable wing used by Goodyear for inflatable wing
  •  
  • drop zone
  • DrTuba     http://drtuba.eu/   
  • drum
  • drumGen, drum gen, drum generator     See reelGen, reel gen, reel generator
  • Dryden Flight Research Center (DFRC)      wiki       ... a NASA center in California   Home

      


     

  • DS  
    • Dave Santos, aka DaveS, often as   ds
    • DS dynamic soaring
    • DS-ing       doing dynamic soaring
    • Double surface     (hang gliders, kites, airfoil) as opposed to SS or single-surfaced membrane airfoils. Perhaps more properly: double-skinned (DS), as a single skin (SS) has a top and lower surface. Count the skins or covers.
    • Inverse of DS or dynamic soaring might be DP- Dynamic Plummet    AWES6393
       
  • DSGWT   dynamic soaring glider wind turbine (DSGWT).  Dynamically soaring gliders with RATs onboard.   See also DSUTWP (dynamic soaring un-tethered wind power plants).  Developing discussion is occurring in group AirborneWindEnergy.
     
  • DSM (in full Koninklijke DSM N.V., or Royal DSM N.V.) is a multinational chemical company
    • DSM Dyneema is the inventor and manufacturer of Dyneema ultra-strong fiber. This fiber, based on ultra high molecular weight polyethylene (UHMwPE), is used in many applications in various end-markets, such as life protection, shipping, fishing, offshore, sailing, medical and textiles.
       
  • DTE, DT&E,    Development, test, and evaluate  
                           DDT&E 
    Design, Development, Test & Evaluate  , etc.
  • dual airfoils
    •  
  • dual-balloon energy harvester   Ref1
  • dual-conductor tether
  • dual ratcheting flywheel
     
  • duct
  • ducted APU      How to make a KiteLab Ducted Turbine APU (RAT)
  • ducted fan    AWE4271
  • ducted RAT
  • ducted turbine blade  [duct, shround, shroud, diffuser, augmentor, augmenter, concentrator, Venturi, funnel, ... ]  augmented wind turbine,
     
  • Duke Energy        AirborneWindEnergy/message/8399     KiteEnergy lists short note on Jan 9, 2013.
  • drum kite, drum kites
  • Dusty McDevil      AWES6885
  • Dutch-roll power cycle    Art1   wiki  Art2
  • DWKPS  downwind kite-power system (DWKPS)   as opposed to crosswind kite-power systems (CWKPS)
  • duty cycle and energy-production cycle for reel-in-out yo-yo AWES.  Bi-modal system.
  • dynamic air ship
  • dynamic flight maneuvers
  • dynamic flying machine
  • dynamical instability
  • dynamic imbalance of the spinning turbines
  • dynamic plummet                      AWES6217
     
  • dynamic oscillations of wings, of tethers, of control surfaces, etc. can be damaging or productive of assets. Whole AWECS may feature dynamic oscillating wings. Faired tethers may set up dynamic oscillations and subsequent drag; but the wingmills of KiteLab by Dave Santos use dynamic oscillation to good effect for generating useful wind-energy conversion.
     
  • dynamic positioning       wiki       -A computer controlled system to automatically maintain a ship’s position and heading by using her own propellers and thrusters.   
  • dynamic pressure     wiki
  • dynamic sea-state compensation          Use1
  • dynamic simulation 
  • dynamic soaring      DS
  • dynamic tails
  • dynamo             See generator  Study: Article
  • dynamos
  • Dyneema ®        Main      Dyneema® ropes.
  • Dyson sphere    wiki
  • dz, dzs               drop zone     wiki
  • DZO   drop-zone officer     drop-zone owner   

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