JP7351424B2 - 気体抵抗低減構造体、樹脂成形品、賦形型、および移動体 - Google Patents

気体抵抗低減構造体、樹脂成形品、賦形型、および移動体 Download PDF

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JP7351424B2
JP7351424B2 JP2022577415A JP2022577415A JP7351424B2 JP 7351424 B2 JP7351424 B2 JP 7351424B2 JP 2022577415 A JP2022577415 A JP 2022577415A JP 2022577415 A JP2022577415 A JP 2022577415A JP 7351424 B2 JP7351424 B2 JP 7351424B2
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width
convex
moving body
parts
concave
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Japanese (ja)
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JPWO2022260181A1 (https=
JPWO2022260181A5 (https=
Inventor
豪 千葉
文裕 荒川
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Dai Nippon Printing Co Ltd
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Dai Nippon Printing Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D35/00—Vehicle bodies characterised by streamlining
    • 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
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
    • 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
    • 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
    • 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
    • F15D1/002—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
    • F15D1/005—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 dimples
    • 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
    • F15D1/0085—Methods of making characteristic surfaces for influencing the boundary layer
    • 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
    • F15D1/02—Influencing flow of fluids in pipes or conduits
    • F15D1/06—Influencing flow of fluids in pipes or conduits by influencing the boundary layer
    • F15D1/065—Whereby an element is dispersed in a pipe over the whole length or whereby several elements are regularly distributed in a pipe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/112—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2029/00—Use of polyvinylalcohols, polyvinylethers, polyvinylaldehydes, polyvinylketones or polyvinylketals or derivatives thereof as moulding material
    • B29K2029/04—PVOH, i.e. polyvinyl alcohol
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2033/00—Use of polymers of unsaturated acids or derivatives thereof as moulding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Fuel Cell (AREA)
JP2022577415A 2021-06-10 2022-06-10 気体抵抗低減構造体、樹脂成形品、賦形型、および移動体 Active JP7351424B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2023114252A JP2023145515A (ja) 2021-06-10 2023-07-12 気体抵抗低減構造体、樹脂成形品、賦形型、および移動体

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP2021097164 2021-06-10
JP2021097165 2021-06-10
JP2021097162 2021-06-10
JP2021097162 2021-06-10
JP2021097164 2021-06-10
JP2021097165 2021-06-10
PCT/JP2022/023544 WO2022260181A1 (ja) 2021-06-10 2022-06-10 気体抵抗低減構造体、樹脂成形品、賦形型、および移動体

Related Child Applications (1)

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JP2023114252A Division JP2023145515A (ja) 2021-06-10 2023-07-12 気体抵抗低減構造体、樹脂成形品、賦形型、および移動体

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JPWO2022260181A1 JPWO2022260181A1 (https=) 2022-12-15
JPWO2022260181A5 JPWO2022260181A5 (https=) 2023-05-24
JP7351424B2 true JP7351424B2 (ja) 2023-09-27

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JP2023114252A Pending JP2023145515A (ja) 2021-06-10 2023-07-12 気体抵抗低減構造体、樹脂成形品、賦形型、および移動体

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Country Status (4)

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US (1) US20240280122A1 (https=)
EP (1) EP4353977A4 (https=)
JP (2) JP7351424B2 (https=)
WO (1) WO2022260181A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2023147656A (ja) * 2022-03-30 2023-10-13 大日本印刷株式会社 流体抵抗低減構造およびフィルム

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7770011B2 (ja) * 2021-09-14 2025-11-14 国立研究開発法人宇宙航空研究開発機構 リブレット構造体及び対象物

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001050215A (ja) 1999-08-11 2001-02-23 浩伸 ▲黒▼川 カルマン渦低減体
JP2010007846A (ja) 2008-06-30 2010-01-14 Kitakyushu Foundation For The Advancement Of Industry Science & Technology 流動抵抗低減構造
JP2013057390A (ja) 2011-09-09 2013-03-28 Yamaguchi Univ 壁面上の流れに対する渦発生器
US20140318657A1 (en) 2013-04-30 2014-10-30 The Ohio State University Fluid conveying apparatus with low drag, anti-fouling flow surface and methods of making same
JP2016114203A (ja) 2014-12-17 2016-06-23 株式会社東芝 流体摩擦抵抗低減皮膜および水力発電システム

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5361828A (en) * 1993-02-17 1994-11-08 General Electric Company Scaled heat transfer surface with protruding ramp surface turbulators
JPH1047315A (ja) * 1996-07-29 1998-02-17 Junichi Hirata 流体抵抗低減用品
JP2010065841A (ja) 2008-09-12 2010-03-25 Toshikatsu Tanaka 物体表面に凹凸を付ける事による流体抵抗の軽減技術
US9352533B2 (en) * 2009-01-29 2016-05-31 The Boeing Company Elastomeric riblets
GB2556110B (en) * 2016-11-21 2020-04-01 Dyson Technology Ltd Compressor blade surface patterning

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001050215A (ja) 1999-08-11 2001-02-23 浩伸 ▲黒▼川 カルマン渦低減体
JP2010007846A (ja) 2008-06-30 2010-01-14 Kitakyushu Foundation For The Advancement Of Industry Science & Technology 流動抵抗低減構造
JP2013057390A (ja) 2011-09-09 2013-03-28 Yamaguchi Univ 壁面上の流れに対する渦発生器
US20140318657A1 (en) 2013-04-30 2014-10-30 The Ohio State University Fluid conveying apparatus with low drag, anti-fouling flow surface and methods of making same
JP2016114203A (ja) 2014-12-17 2016-06-23 株式会社東芝 流体摩擦抵抗低減皮膜および水力発電システム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2023147656A (ja) * 2022-03-30 2023-10-13 大日本印刷株式会社 流体抵抗低減構造およびフィルム

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Publication number Publication date
JP2023145515A (ja) 2023-10-11
US20240280122A1 (en) 2024-08-22
WO2022260181A1 (ja) 2022-12-15
EP4353977A1 (en) 2024-04-17
EP4353977A4 (en) 2025-06-04
JPWO2022260181A1 (https=) 2022-12-15

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