ES2074010A2 - Aerodynamic profiles of simple geometry - Google Patents

Aerodynamic profiles of simple geometry

Info

Publication number
ES2074010A2
ES2074010A2 ES09301663A ES9301663A ES2074010A2 ES 2074010 A2 ES2074010 A2 ES 2074010A2 ES 09301663 A ES09301663 A ES 09301663A ES 9301663 A ES9301663 A ES 9301663A ES 2074010 A2 ES2074010 A2 ES 2074010A2
Authority
ES
Spain
Prior art keywords
aerodynamic profiles
simple geometry
profiles
trailing edge
radius
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
ES09301663A
Other languages
Spanish (es)
Other versions
ES2074010R (en
ES2074010B1 (en
Inventor
Iriarte J Javier Doria
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Euskal Herriko Unibertsitatea
Original Assignee
Euskal Herriko Unibertsitatea
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Euskal Herriko Unibertsitatea filed Critical Euskal Herriko Unibertsitatea
Priority to ES09301663A priority Critical patent/ES2074010B1/en
Publication of ES2074010A2 publication Critical patent/ES2074010A2/en
Publication of ES2074010R publication Critical patent/ES2074010R/es
Application granted granted Critical
Publication of ES2074010B1 publication Critical patent/ES2074010B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2200/00—Mathematical features
    • F05B2200/20—Special functions
    • F05B2200/26—Special functions trigonometric
    • F05B2200/262—Cosine
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Landscapes

  • Rod-Shaped Construction Members (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Revetment (AREA)
  • Adjustment And Processing Of Grains (AREA)
  • Looms (AREA)
  • Measuring Volume Flow (AREA)

Abstract

The aerodynamic profiles are characterized in that in the intrados and in the extrados, from the leading edge to the maximum thickness of the profile, the curve corresponds to a quadrant of an ellipse with semiaxes "a" and "b", which would be extended downstream according to a function y = b. cos (x/a), as far as the trailing edge, by means of a connection with an identical radius of curvature and trailing edge with infinite radius and longitudinal cord c = a. (1+pi/2), allowing the design of asymmetrical profiles.
ES09301663A 1993-07-14 1993-07-14 AERODYNAMIC PROFILES OF SIMPLE GEOMETRY Expired - Fee Related ES2074010B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES09301663A ES2074010B1 (en) 1993-07-14 1993-07-14 AERODYNAMIC PROFILES OF SIMPLE GEOMETRY

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES09301663A ES2074010B1 (en) 1993-07-14 1993-07-14 AERODYNAMIC PROFILES OF SIMPLE GEOMETRY

Publications (3)

Publication Number Publication Date
ES2074010A2 true ES2074010A2 (en) 1995-08-16
ES2074010R ES2074010R (en) 1997-11-16
ES2074010B1 ES2074010B1 (en) 1998-05-16

Family

ID=8282666

Family Applications (1)

Application Number Title Priority Date Filing Date
ES09301663A Expired - Fee Related ES2074010B1 (en) 1993-07-14 1993-07-14 AERODYNAMIC PROFILES OF SIMPLE GEOMETRY

Country Status (1)

Country Link
ES (1) ES2074010B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3150846A1 (en) 2015-09-29 2017-04-05 Jose Javier Doria Iriarte Device for converting kinetic energy of a flow from waves, wind or water currents into mechanical energy of rotation

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1016960A3 (en) 2006-01-19 2007-11-06 Rostyne Alexander Jozef Magdal IMPROVED HELICOPTER.
US7815482B2 (en) 2006-01-19 2010-10-19 Silverlit Toys Manufactory, Ltd. Helicopter
US7883392B2 (en) 2008-08-04 2011-02-08 Silverlit Toys Manufactory Ltd. Toy helicopter
US8357023B2 (en) 2006-01-19 2013-01-22 Silverlit Limited Helicopter
US8002604B2 (en) 2006-01-19 2011-08-23 Silverlit Limited Remote controlled toy helicopter
US7662013B2 (en) 2006-01-19 2010-02-16 Silverlit Toys Manufactory Ltd. Helicopter with horizontal control
US8052500B2 (en) 2008-11-25 2011-11-08 Silverlit Limited Helicopter with main and auxiliary rotors

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3713750A (en) * 1970-12-07 1973-01-30 Us Navy Circulation control rotor system
US4240598A (en) * 1978-02-02 1980-12-23 Societe Nationale Industrielle Aerospatiale High performance aerodynamic airfoil for aircraft wing
ES8307985A1 (en) * 1980-07-31 1983-08-16 Kraftwerk Union Ag Turbo-machine blade
WO1987002321A1 (en) * 1985-10-09 1987-04-23 Silvan Hess Boat

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3713750A (en) * 1970-12-07 1973-01-30 Us Navy Circulation control rotor system
US4240598A (en) * 1978-02-02 1980-12-23 Societe Nationale Industrielle Aerospatiale High performance aerodynamic airfoil for aircraft wing
ES8307985A1 (en) * 1980-07-31 1983-08-16 Kraftwerk Union Ag Turbo-machine blade
WO1987002321A1 (en) * 1985-10-09 1987-04-23 Silvan Hess Boat

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3150846A1 (en) 2015-09-29 2017-04-05 Jose Javier Doria Iriarte Device for converting kinetic energy of a flow from waves, wind or water currents into mechanical energy of rotation
WO2017055649A1 (en) 2015-09-29 2017-04-06 Jose Javier Doria Iriarte Device for converting the kinetic energy of waves, water flows or wind into mechanical energy
US10683840B2 (en) 2015-09-29 2020-06-16 Arrecife Energy Systems S.L. Device for converting the kinetic energy of waves, water flows or wind into mechanical energy

Also Published As

Publication number Publication date
ES2074010R (en) 1997-11-16
ES2074010B1 (en) 1998-05-16

Similar Documents

Publication Publication Date Title
IE871142L (en) Bodies with reduced drag surface
ES251742U (en) Marine propeller
WO1997017557A3 (en) Energy management chain
ES8307985A1 (en) Turbo-machine blade
ES2074010A2 (en) Aerodynamic profiles of simple geometry
DE69921115D1 (en) DEVICE FOR A WING
GB2121368B (en) Sail with retractable air directing element
EP0069569B1 (en) Aerofoil sail
GB8626371D0 (en) Aerodynamic/hydrodynamic surfaces
EP0131719A3 (en) Adjustable guiding apparatus
CA2076399A1 (en) Blade wheel for a centrifugal pump
ES8302573A1 (en) Wingsail arrangement.
ES8306521A1 (en) High lift device for wind-driven ships and other applications.
ATE244661T1 (en) WING PROFILE REAR EDGE
GR950100067A (en) Ship's stem duct with airfoil section.
UA12318A (en) Guide rib of axial ventilator
RU97106869A (en) END WING
RU96114346A (en) AERODYNAMIC PROFILE OF AIRCRAFT BEARING ELEMENT
FR2393176A1 (en) High-pressure centrifugal compressor - has rotor with round concave surface and slightly curved vanes
JPS57167894A (en) Sail equipment
JPS57171004A (en) Manufacture of impeller
SU1449454A2 (en) Sails
UA6398A1 (en) Blade of windwheel
JPS57121995A (en) Sail structure having foldable end
GB1226323A (en)

Legal Events

Date Code Title Description
GD2A Contractual licences

Effective date: 19970116

EC2A Search report published

Date of ref document: 19950816

Kind code of ref document: R

Effective date: 19950816

FD2A Announcement of lapse in spain

Effective date: 20141120