RU95106564A - Lifting surface - Google Patents

Lifting surface

Info

Publication number
RU95106564A
RU95106564A RU95106564/11A RU95106564A RU95106564A RU 95106564 A RU95106564 A RU 95106564A RU 95106564/11 A RU95106564/11 A RU 95106564/11A RU 95106564 A RU95106564 A RU 95106564A RU 95106564 A RU95106564 A RU 95106564A
Authority
RU
Russia
Prior art keywords
flow
streamlined
vortex
boundary layer
slotted holes
Prior art date
Application number
RU95106564/11A
Other languages
Russian (ru)
Other versions
RU2094313C1 (en
Inventor
В.П. Винокуров
Original Assignee
В.П. Винокуров
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 В.П. Винокуров filed Critical В.П. Винокуров
Priority to RU9595106564A priority Critical patent/RU2094313C1/en
Publication of RU95106564A publication Critical patent/RU95106564A/en
Application granted granted Critical
Publication of RU2094313C1 publication Critical patent/RU2094313C1/en

Links

Classifications

    • 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
    • Y02T50/10—Drag reduction

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Wind Motors (AREA)

Abstract

FIELD: mechanical engineering; manufacture of wings; main rotors and compressor and turbine blades for reduction of resistance of streamlined surfaces. SUBSTANCE: lifting surface has vortex generators made in form of fences located across the incoming flow and partitions mounted in vortex generators over entire length of fence in parallel relative to each other in way of flow; in the bottom portion of vortex generators there are through slotted holes brought out to streamlined surface. When lifting surface is washed with liquid or gas, area of reduced pressure with bound vortex is created in bottom portion of vortex generator. Due to bottom rarefaction, part of flow passes from boundary layer on streamlined surface to vortex generator through slotted holes preventing flow from being separated and enters the flow on lifting surface in directed jet. Innovation of invention consists in control of boundary layer on streamlined surface through slotted holes making use of local areas at reduced pressure on streamlined surface. EFFECT: reduced resistance due to control of boundary layer on streamlined surface.

Claims (1)

Изобретение относится к машиностроению и может быть использовано для снижения сопротивления обтекаемых жидкостью или газом несущих поверхностей, например, в качестве крыла летательного аппарата, несущих винтов, лопаток компрессоров и турбин и т.д. Целью изобретения является снижение сопротивления путем управления пограничным слоем на обтекаемой поверхности. Это достигается тем, что на несущей поверхности, имеющей вихреобразователи в виде гребней, расположенных поперек набегающего потока, и перегородок, установленных в вихреобразователях на всей высоте гребня параллельно одна другой в направлении потока, в донной части вихреобразователя имеются сквозные щелевые отверстия, выходящие на обтекаемую поверхность. При обтекании несущей поверхности потоком жидкости или газа в донной части вихреобразователя создается область пониженного давления с присоединенным вихрем. За счет донного разрежения часть потока из пограничного слоя на обтекаемой поверхности через щелевые отверстия перетекает в вихреобразователь, предотвращая отрыв потока, и направленной струей поступает в поток на несущей поверхности. Новым в изобретении является возможность управления пограничным слоем на обтекаемой поверхности через щелевые отверстия, используя при этом локальные области с пониженным давлением на несущей поверхности.The invention relates to mechanical engineering and can be used to reduce the resistance of bearing surfaces streamlined by a liquid or gas, for example, as an aircraft wing, rotors, compressor blades and turbines, etc. The aim of the invention is to reduce resistance by controlling the boundary layer on a streamlined surface. This is achieved by the fact that on the bearing surface having vortex generators in the form of ridges located across the incoming flow and partitions installed in the vortex generators at the entire height of the ridge parallel to one another in the direction of flow, there are through slotted holes in the bottom of the vortex generator overlooking the streamlined surface . When a flow of liquid or gas flows around the bearing surface in the bottom of the vortex generator, a region of reduced pressure is created with the vortex attached. Due to bottom rarefaction, part of the flow from the boundary layer on the streamlined surface flows through slotted holes into the vortex generator, preventing flow separation, and enters the flow on the supporting surface with a directed stream. New in the invention is the ability to control the boundary layer on a streamlined surface through slotted holes, while using local areas with reduced pressure on the bearing surface.
RU9595106564A 1995-04-20 1995-04-20 Lifting surface RU2094313C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU9595106564A RU2094313C1 (en) 1995-04-20 1995-04-20 Lifting surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU9595106564A RU2094313C1 (en) 1995-04-20 1995-04-20 Lifting surface

Publications (2)

Publication Number Publication Date
RU95106564A true RU95106564A (en) 1997-02-20
RU2094313C1 RU2094313C1 (en) 1997-10-27

Family

ID=20167146

Family Applications (1)

Application Number Title Priority Date Filing Date
RU9595106564A RU2094313C1 (en) 1995-04-20 1995-04-20 Lifting surface

Country Status (1)

Country Link
RU (1) RU2094313C1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2173658C1 (en) * 2000-12-18 2001-09-20 Немыкин Артур Степанович Method of reducing drag of moving object and device for its embodiment
NL1034178C2 (en) * 2007-07-24 2009-01-27 Kick Off Ltd Friction resistance reducing layer for object e.g. vehicle, building, has repetitive waveform-like approach flow surface which has overhanging wave tops and cavities and grooves for transporting fluid from fluid boundary layer into cavities
NL1035216C2 (en) 2007-07-24 2009-01-27 Kick Off Ltd Friction-reducing reducing layer and method for the manufacture thereof.
RU2445519C1 (en) * 2010-07-30 2012-03-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ульяновский государственный технический университет" Surface flown over by turbulent gas flow
RU2445518C1 (en) * 2010-07-30 2012-03-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования"Ульяновский государственный технический университет" Method of reducing friction of turbulent gas flow
RU2642203C2 (en) * 2013-01-25 2018-01-24 Питер ИРЛЕНД Method and system of aero/hydrodynamic control of newtonian fluid flow in radial turbomachine

Also Published As

Publication number Publication date
RU2094313C1 (en) 1997-10-27

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Legal Events

Date Code Title Description
MM4A The patent is invalid due to non-payment of fees

Effective date: 20080421