PL449922A1 - Pofalowana nakładka nawierzchniowa oraz sposób doboru parametrów nakładki - Google Patents

Pofalowana nakładka nawierzchniowa oraz sposób doboru parametrów nakładki

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Publication number
PL449922A1
PL449922A1 PL449922A PL44992224A PL449922A1 PL 449922 A1 PL449922 A1 PL 449922A1 PL 449922 A PL449922 A PL 449922A PL 44992224 A PL44992224 A PL 44992224A PL 449922 A1 PL449922 A1 PL 449922A1
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PL
Poland
Prior art keywords
overlay
subject
boundary layer
application
wave
Prior art date
Application number
PL449922A
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English (en)
Inventor
Artur Dróźdż
Witold Elsner
Mathias Romańczyk
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Politechnika Częstochowska
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Application filed by Politechnika Częstochowska filed Critical Politechnika Częstochowska
Priority to PL449922A priority Critical patent/PL449922A1/pl
Publication of PL449922A1 publication Critical patent/PL449922A1/pl
Priority to EP25460044.8A priority patent/EP4733604A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/001—Flow of fluid from conduits such as pipes, sleeves, tubes, with equal distribution of fluid flow over the evacuation surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D17/00—Construction details of vehicle bodies
    • B61D17/02—Construction details of vehicle bodies reducing air resistance by modifying contour ; Constructional features for fast vehicles sustaining sudden variations of atmospheric pressure, e.g. when crossing in tunnels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
    • B63B1/34—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction
    • B63B1/36—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction using mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C21/00—Influencing air flow over aircraft surfaces by affecting boundary layer flow
    • B64C21/10—Influencing air flow over aircraft surfaces by affecting boundary layer flow using other surface properties, e.g. roughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C5/00—Stabilising surfaces
    • B64C5/08—Stabilising surfaces mounted on, or supported by, wings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D17/00—Parachutes
    • B64D17/02—Canopy arrangement or construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • F03D1/0633—Rotors characterised by their aerodynamic shape of the blades
    • F03D1/0649—Rotors characterised by their aerodynamic shape of the blades of the blade surfaces, e.g. roughened
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/002—Influencing flow of fluids by influencing the boundary layer
    • F15D1/0025—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply
    • F15D1/003—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply comprising surface features, e.g. indentations or protrusions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/002—Influencing flow of fluids by influencing the boundary layer
    • F15D1/0025—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply
    • F15D1/003—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply comprising surface features, e.g. indentations or protrusions
    • F15D1/0035—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply comprising surface features, e.g. indentations or protrusions in the form of riblets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/002—Influencing flow of fluids by influencing the boundary layer
    • F15D1/0025—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply
    • F15D1/003—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply comprising surface features, e.g. indentations or protrusions
    • F15D1/0035—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply comprising surface features, e.g. indentations or protrusions in the form of riblets
    • F15D1/0045—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply comprising surface features, e.g. indentations or protrusions in the form of riblets oriented essentially perpendicular to the direction of flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/10—Influencing flow of fluids around bodies of solid material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/10—Influencing flow of fluids around bodies of solid material
    • F15D1/12—Influencing flow of fluids around bodies of solid material by influencing the boundary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C2230/00—Boundary layer controls
    • B64C2230/26—Boundary layer controls by using rib lets or hydrophobic surfaces
    • 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
    • F05B2230/00—Manufacture
    • F05B2230/90—Coating; Surface treatment
    • 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
    • F05B2250/00—Geometry
    • F05B2250/60—Structure; Surface texture
    • F05B2250/61—Structure; Surface texture corrugated
    • 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
    • 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
    • Y02E10/70—Wind energy
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/30—Wing lift efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Ocean & Marine Engineering (AREA)
  • Hydraulic Turbines (AREA)
  • Wind Motors (AREA)

Abstract

Przedmiotem zgłoszenia jest nakładka nawierzchniowa do kontroli turbulentnej warstwy przyściennej będącej blisko oderwania, która zmniejsza lub powoduje całkowity zanik turbulentnego oderwania dla wysokich liczb Reynoldsa. Przedmiotem zgłoszenia jest cienka nakładka nawierzchniowa, która posiada część aktywną, składającą się z zafalowanej powierzchni modulującej turbulentną warstwę przyścienną oraz część przyczepną pozwalającą na montaż nakładki na ciało fizyczne, stanowiące opór, gdy istnieje względny ruch między ciałem a płynem lepkim. Przykładem takich obiektów są łopaty turbiny wiatrowej. Przedmiotem zgłoszenia jest także sposób doboru parametrów nakładki charakteryzujący się tym, że obejmuje następujące etapy: określa się lokalną liczbę Reynoldsa Re_τ, ustala się miejsce początkowe instalacji nakładki nawierzchniowej, na podstawie liczby Reynoldsa, która zwiększa się wzdłuż powierzchni łopaty poniżej punktu p, dobiera się amplitudę zafalowania nakładki, tak aby zmieniała się wraz z grubością strefy wewnętrznej turbulentnej warstwy przyściennej, dobiera się okres zafalowania, przy czym uwzględnia się lokalne warunki przepływu, takie jak odchylenie kierunku przepływu spowodowane np. siłą odśrodkową, wynikającą z ruchu wirowego łopaty lub ukształtowaniem powierzchni kadłuba poruszającego się wehikułu.
PL449922A 2024-09-30 2024-09-30 Pofalowana nakładka nawierzchniowa oraz sposób doboru parametrów nakładki PL449922A1 (pl)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL449922A PL449922A1 (pl) 2024-09-30 2024-09-30 Pofalowana nakładka nawierzchniowa oraz sposób doboru parametrów nakładki
EP25460044.8A EP4733604A1 (en) 2024-09-30 2025-09-30 Corrugated coating and method for selecting the coating parameters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL449922A PL449922A1 (pl) 2024-09-30 2024-09-30 Pofalowana nakładka nawierzchniowa oraz sposób doboru parametrów nakładki

Publications (1)

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PL449922A1 true PL449922A1 (pl) 2025-03-17

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4442319C1 (de) * 1994-11-29 1996-05-09 Deutsche Forsch Luft Raumfahrt Flügel für Anströmgeschwindigkeiten im hohen Unterschallbereich
DE19703766C1 (de) * 1997-02-01 1998-03-26 Daimler Benz Aerospace Airbus Verfahren zur aktiven Beeinflußung einer Grenzschicht eines umströmten bzw. durchströmten Körpers
CN102003409A (zh) * 2010-12-30 2011-04-06 上海交通大学 用于络筒机离心风机的波纹状结构叶片
CN203743140U (zh) * 2014-02-23 2014-07-30 中国科学院工程热物理研究所 一种减阻肋条
CN107742011A (zh) * 2017-09-26 2018-02-27 南京航空航天大学 叶轮叶片减阻微织构的设计方法
CN114510777A (zh) * 2022-01-06 2022-05-17 南京航空航天大学 一种适用于低雷诺数飞行器旋翼的表面结构及设计方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3775975D1 (de) * 1986-04-30 1992-02-27 United Technologies Corp Diffusor.
US5833389A (en) 1996-12-09 1998-11-10 Orlev Scientific Computing Ltd. Apparatus for controlling turbulence in boundary layer and other wall-bounded fluid flow fields
US6345791B1 (en) 2000-04-13 2002-02-12 Lockheed Martin Corporation Streamwise variable height riblets for reducing skin friction drag of surfaces
DE10139436A1 (de) 2001-08-10 2003-03-06 Airbus Gmbh Vorrichtung zur Verringerung des strömungsmechanischen Reibungswiderstandes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4442319C1 (de) * 1994-11-29 1996-05-09 Deutsche Forsch Luft Raumfahrt Flügel für Anströmgeschwindigkeiten im hohen Unterschallbereich
DE19703766C1 (de) * 1997-02-01 1998-03-26 Daimler Benz Aerospace Airbus Verfahren zur aktiven Beeinflußung einer Grenzschicht eines umströmten bzw. durchströmten Körpers
CN102003409A (zh) * 2010-12-30 2011-04-06 上海交通大学 用于络筒机离心风机的波纹状结构叶片
CN203743140U (zh) * 2014-02-23 2014-07-30 中国科学院工程热物理研究所 一种减阻肋条
CN107742011A (zh) * 2017-09-26 2018-02-27 南京航空航天大学 叶轮叶片减阻微织构的设计方法
CN114510777A (zh) * 2022-01-06 2022-05-17 南京航空航天大学 一种适用于低雷诺数飞行器旋翼的表面结构及设计方法

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EP4733604A1 (en) 2026-04-29

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