ES2155331A1 - Velocimetry procedure by particle image correlation with spatial resolution that is less than the size of the query window - Google Patents

Velocimetry procedure by particle image correlation with spatial resolution that is less than the size of the query window

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Publication number
ES2155331A1
ES2155331A1 ES009800999A ES9800999A ES2155331A1 ES 2155331 A1 ES2155331 A1 ES 2155331A1 ES 009800999 A ES009800999 A ES 009800999A ES 9800999 A ES9800999 A ES 9800999A ES 2155331 A1 ES2155331 A1 ES 2155331A1
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Spain
Prior art keywords
procedure
velocimetry
piv
particle image
correlation
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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
ES009800999A
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Spanish (es)
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ES2155331B1 (en
Inventor
Goriba Jose Ignacio Nogueira
Newman Antonio Lecuona
Aumente Pedro Aciscl Rodriguez
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Universidad Carlos III de Madrid
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Universidad Carlos III de Madrid
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Priority to ES9800999A priority Critical patent/ES2155331B1/en
Publication of ES2155331A1 publication Critical patent/ES2155331A1/en
Application granted granted Critical
Publication of ES2155331B1 publication Critical patent/ES2155331B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

Procedimiento de velocimetría por correlación de imágenes de partículas con resolución espacial menor que el tamaño de la ventana de interrogación. La presente invención consiste en una modificación de los equipos usuales de velocimetría por imágenes de partículas (Particle Image Velocimetry ó PIV). Esta modificación es un procedimiento novel de extracción de la información del campo de desplazamientos a partir de las imágenes de partículas. El problema que resuelve este nuevo procedimiento es la obtención de resoluciones espaciales menores que la ventana de interrogación en PIV por correlación (efecto observable en la figura 3, serie 4, -ventanas de interrogación de 64 pixels-). El nuevo procedimiento se puede aplicar a cualquier equipo de PIV por correlación numérica. Consecuentemente, su posibilidad de aplicación abarca la totalidad de campos en los que se emplea el PIV usual (como pueden ser el aeronáutico, naval, medio ambiente, ingeniería civil y mecánica, industria química, etc.)Velocimetry procedure by correlation of particle images with spatial resolution smaller than the size of the interrogation window. The present invention consists of a modification of the usual particle image velocimetry equipment (Particle Image Velocimetry or PIV). This modification is a novel procedure for extracting displacement field information from particle images. The problem that this new procedure solves is obtaining spatial resolutions smaller than the interrogation window in PIV by correlation (observable effect in figure 3, series 4, -interrogation windows of 64 pixels-). The new procedure can be applied to any PIV equipment by numerical correlation. Consequently, its possibility of application covers all the fields in which the usual PIV is used (such as aeronautics, naval, environment, civil and mechanical engineering, chemical industry, etc.)

ES9800999A 1998-05-13 1998-05-13 SPEED PROCEDURE FOR CORRELATION OF PARTICLE IMAGES WITH SPACE RESOLUTION LESS THAN THE SIZE OF THE INTERROGATION WINDOW. Expired - Fee Related ES2155331B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES9800999A ES2155331B1 (en) 1998-05-13 1998-05-13 SPEED PROCEDURE FOR CORRELATION OF PARTICLE IMAGES WITH SPACE RESOLUTION LESS THAN THE SIZE OF THE INTERROGATION WINDOW.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9800999A ES2155331B1 (en) 1998-05-13 1998-05-13 SPEED PROCEDURE FOR CORRELATION OF PARTICLE IMAGES WITH SPACE RESOLUTION LESS THAN THE SIZE OF THE INTERROGATION WINDOW.

Publications (2)

Publication Number Publication Date
ES2155331A1 true ES2155331A1 (en) 2001-05-01
ES2155331B1 ES2155331B1 (en) 2001-12-01

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Application Number Title Priority Date Filing Date
ES9800999A Expired - Fee Related ES2155331B1 (en) 1998-05-13 1998-05-13 SPEED PROCEDURE FOR CORRELATION OF PARTICLE IMAGES WITH SPACE RESOLUTION LESS THAN THE SIZE OF THE INTERROGATION WINDOW.

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ES (1) ES2155331B1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995001572A1 (en) * 1993-07-01 1995-01-12 Bodo Ruck Process and device for generating graphic real-time directional information for detected object tracks
US5440144A (en) * 1992-11-06 1995-08-08 Deutsche Forschungsanstalt Fur Luft-Und Raumfahrt E.V. Apparatus for the three-dimensional determination of flows
JPH08211087A (en) * 1993-08-20 1996-08-20 Hirobumi Onari Device for analyzing visualized picture of flow
US5581383A (en) * 1994-03-14 1996-12-03 Jenoptik Technologie Gmbh Arrangement for optical autocorrelation
WO1998000792A1 (en) * 1996-07-03 1998-01-08 Massachusetts Institute Of Technology Sparse array image correlation
JPH1031030A (en) * 1996-07-15 1998-02-03 Ricoh Co Ltd Fluid measurement method
EP0829726A1 (en) * 1996-09-05 1998-03-18 Robert Bosch Gmbh Method and apparatus for determining three dimensional flow structures

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5440144A (en) * 1992-11-06 1995-08-08 Deutsche Forschungsanstalt Fur Luft-Und Raumfahrt E.V. Apparatus for the three-dimensional determination of flows
WO1995001572A1 (en) * 1993-07-01 1995-01-12 Bodo Ruck Process and device for generating graphic real-time directional information for detected object tracks
JPH08211087A (en) * 1993-08-20 1996-08-20 Hirobumi Onari Device for analyzing visualized picture of flow
US5581383A (en) * 1994-03-14 1996-12-03 Jenoptik Technologie Gmbh Arrangement for optical autocorrelation
WO1998000792A1 (en) * 1996-07-03 1998-01-08 Massachusetts Institute Of Technology Sparse array image correlation
JPH1031030A (en) * 1996-07-15 1998-02-03 Ricoh Co Ltd Fluid measurement method
EP0829726A1 (en) * 1996-09-05 1998-03-18 Robert Bosch Gmbh Method and apparatus for determining three dimensional flow structures

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Publication number Publication date
ES2155331B1 (en) 2001-12-01

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