Preliminary Velocity Measurements in the Wake of a Submarine Model

J. M. Jiménez; J. J. Allen; A. J. Smits

Preliminary Velocity Measurements in the Wake of a Submarine Model

J. M. Jiménez, J. J. Allen, A. J. Smits

Mechanical & Aerospace Engineering

Research output: Contribution to journal › Conference article › peer-review

4 Scopus citations

Abstract

The work presented in this paper details preliminary low Reynolds numbers studies using Particle Image Velocimetry (PIV) to collect turbulence statistics and unsteady flow field information over a DARPA SUBOFF submarine model. The model configuration tested was an axisymmetric body without appendages and supported by a streamlined sting. Turbulent statistics were calculated both in time and space, hence increasing the effective sample size by an order of magnitude from 500 to about 5000 data points, in order to generate meaningful statistical data sets. Velocity vector fields, distribution measurements of axial and radial turbulence intensity, distribution measurements of turbulent shear, vorticity fields and flow visualizations in the wake region are presented for Reynolds numbers based on model length, Re, between 10 ⁵ and 10⁶, for 8 < x/D < 9 downstream from the tail of the submarine model.

Original language	English (US)
Pages (from-to)	1229-1233
Number of pages	5
Journal	DLR-Mitteilung
Issue number	3
State	Published - 2001
Event	Particle Image Velocimetry - Gottingen, Germany Duration: Sep 17 2001 → Sep 19 2001

All Science Journal Classification (ASJC) codes

Transportation
Aerospace Engineering

Cite this

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title = "Preliminary Velocity Measurements in the Wake of a Submarine Model",

abstract = "The work presented in this paper details preliminary low Reynolds numbers studies using Particle Image Velocimetry (PIV) to collect turbulence statistics and unsteady flow field information over a DARPA SUBOFF submarine model. The model configuration tested was an axisymmetric body without appendages and supported by a streamlined sting. Turbulent statistics were calculated both in time and space, hence increasing the effective sample size by an order of magnitude from 500 to about 5000 data points, in order to generate meaningful statistical data sets. Velocity vector fields, distribution measurements of axial and radial turbulence intensity, distribution measurements of turbulent shear, vorticity fields and flow visualizations in the wake region are presented for Reynolds numbers based on model length, Re, between 10 5 and 106, for 8 < x/D < 9 downstream from the tail of the submarine model.",

author = "Jim{\'e}nez, {J. M.} and Allen, {J. J.} and Smits, {A. J.}",

year = "2001",

language = "English (US)",

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journal = "DLR-Mitteilung",

issn = "1434-8462",

publisher = "Deutschen Forschungsanstalt fur Luft-und Raumfahrt",

number = "3",

note = "Particle Image Velocimetry ; Conference date: 17-09-2001 Through 19-09-2001",

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TY - JOUR

T1 - Preliminary Velocity Measurements in the Wake of a Submarine Model

AU - Jiménez, J. M.

AU - Allen, J. J.

AU - Smits, A. J.

PY - 2001

Y1 - 2001

N2 - The work presented in this paper details preliminary low Reynolds numbers studies using Particle Image Velocimetry (PIV) to collect turbulence statistics and unsteady flow field information over a DARPA SUBOFF submarine model. The model configuration tested was an axisymmetric body without appendages and supported by a streamlined sting. Turbulent statistics were calculated both in time and space, hence increasing the effective sample size by an order of magnitude from 500 to about 5000 data points, in order to generate meaningful statistical data sets. Velocity vector fields, distribution measurements of axial and radial turbulence intensity, distribution measurements of turbulent shear, vorticity fields and flow visualizations in the wake region are presented for Reynolds numbers based on model length, Re, between 10 5 and 106, for 8 < x/D < 9 downstream from the tail of the submarine model.

AB - The work presented in this paper details preliminary low Reynolds numbers studies using Particle Image Velocimetry (PIV) to collect turbulence statistics and unsteady flow field information over a DARPA SUBOFF submarine model. The model configuration tested was an axisymmetric body without appendages and supported by a streamlined sting. Turbulent statistics were calculated both in time and space, hence increasing the effective sample size by an order of magnitude from 500 to about 5000 data points, in order to generate meaningful statistical data sets. Velocity vector fields, distribution measurements of axial and radial turbulence intensity, distribution measurements of turbulent shear, vorticity fields and flow visualizations in the wake region are presented for Reynolds numbers based on model length, Re, between 10 5 and 106, for 8 < x/D < 9 downstream from the tail of the submarine model.

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AN - SCOPUS:1242306904

SN - 1434-8462

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T2 - Particle Image Velocimetry

Y2 - 17 September 2001 through 19 September 2001

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Preliminary Velocity Measurements in the Wake of a Submarine Model

Abstract

All Science Journal Classification (ASJC) codes

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