Application of digital particle image velocimetry to the study of pathological flow fields

Richard T. Schoephoerster; Lijun Niu; Tong Ding; Danny Bluestein

Application of digital particle image velocimetry to the study of pathological flow fields

Richard T. Schoephoerster
, Lijun Niu
, Tong Ding
, Danny Bluestein

Biomedical Engineering

Stony Brook University

Florida International University

Research output: Contribution to conference › Paper › peer-review

Abstract

Numerical simulations of flow fields created by various pathologies, including stenosis, aneurysm and abnormal left ventricular wall motion created by local ischemia are validated using digital particle image velocimetry. Though displacements within the recirculation regions of the stenosis and aneurism were too small for accurate measures of velocity, separation and reattachment points of the regions for varying Reynolds numbers agreed very well with numerical predictions. For aneurysm, limitations on the upstream length did not allow for full development of the flow causing a flatter in the velocity profile when compared to numerical solutions. Measurements in a contracting sphere yielded symmetrical vector fields as was obtained numerically.

Original language	English
Pages	229-230
Number of pages	2
State	Published - 1995
Event	Proceedings of the 1995 ASME International Mechanical Congress and Exposition - San Francisco, CA, USA Duration: Nov 12 1995 → Nov 17 1995

Conference

Conference	Proceedings of the 1995 ASME International Mechanical Congress and Exposition
City	San Francisco, CA, USA
Period	11/12/95 → 11/17/95

Cite this

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title = "Application of digital particle image velocimetry to the study of pathological flow fields",

abstract = "Numerical simulations of flow fields created by various pathologies, including stenosis, aneurysm and abnormal left ventricular wall motion created by local ischemia are validated using digital particle image velocimetry. Though displacements within the recirculation regions of the stenosis and aneurism were too small for accurate measures of velocity, separation and reattachment points of the regions for varying Reynolds numbers agreed very well with numerical predictions. For aneurysm, limitations on the upstream length did not allow for full development of the flow causing a flatter in the velocity profile when compared to numerical solutions. Measurements in a contracting sphere yielded symmetrical vector fields as was obtained numerically.",

author = "Schoephoerster, \{Richard T.\} and Lijun Niu and Tong Ding and Danny Bluestein",

year = "1995",

language = "English",

pages = "229--230",

note = "Proceedings of the 1995 ASME International Mechanical Congress and Exposition ; Conference date: 12-11-1995 Through 17-11-1995",

}

TY - CONF

T1 - Application of digital particle image velocimetry to the study of pathological flow fields

AU - Schoephoerster, Richard T.

AU - Niu, Lijun

AU - Ding, Tong

AU - Bluestein, Danny

PY - 1995

Y1 - 1995

N2 - Numerical simulations of flow fields created by various pathologies, including stenosis, aneurysm and abnormal left ventricular wall motion created by local ischemia are validated using digital particle image velocimetry. Though displacements within the recirculation regions of the stenosis and aneurism were too small for accurate measures of velocity, separation and reattachment points of the regions for varying Reynolds numbers agreed very well with numerical predictions. For aneurysm, limitations on the upstream length did not allow for full development of the flow causing a flatter in the velocity profile when compared to numerical solutions. Measurements in a contracting sphere yielded symmetrical vector fields as was obtained numerically.

AB - Numerical simulations of flow fields created by various pathologies, including stenosis, aneurysm and abnormal left ventricular wall motion created by local ischemia are validated using digital particle image velocimetry. Though displacements within the recirculation regions of the stenosis and aneurism were too small for accurate measures of velocity, separation and reattachment points of the regions for varying Reynolds numbers agreed very well with numerical predictions. For aneurysm, limitations on the upstream length did not allow for full development of the flow causing a flatter in the velocity profile when compared to numerical solutions. Measurements in a contracting sphere yielded symmetrical vector fields as was obtained numerically.

UR - https://www.scopus.com/pages/publications/0029427565

M3 - Paper

SP - 229

EP - 230

T2 - Proceedings of the 1995 ASME International Mechanical Congress and Exposition

Y2 - 12 November 1995 through 17 November 1995

ER -

Application of digital particle image velocimetry to the study of pathological flow fields

Abstract

Conference

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