Laser Doppler Velocimetry and Fluorescein Dye in the Prediction of Skin Flap Viability: A Comparison

1983 ◽  
Vol 109 (7) ◽  
pp. 454-456 ◽  
Author(s):  
W. F. Larrabee ◽  
G. D. Sutton ◽  
A. Holloway
Keyword(s):  
Laser Doppler Velocimetry ◽  
Skin Flap ◽  
Laser Doppler ◽  
Doppler Velocimetry ◽  
Flap Viability ◽  
Fluorescein Dye

Skin Flap Tension and Wound Slough: Correlation with Laser Doppler Velocimetry

1982 ◽  
Vol 90 (2) ◽  
pp. 185-187 ◽  
Author(s):  
Wayne F. Larrabee ◽  
G. Allen Holloway ◽  
Ron E. Trachy ◽  
Dwight Sutton
Keyword(s):  
Blood Flow ◽  
Laser Doppler Velocimetry ◽  
Skin Flap ◽  
Quantitative Measure ◽  
Laser Doppler ◽  
Flap Necrosis ◽  
Skin Tension ◽  
Flap Viability ◽  
Recent Origin ◽  
Cutaneous Blood

The effects of wound tension on flap viability and blood flow are investigated in an animal model using the domestic piglet. In flaps with an impaired blood supply, wound closing tensions >250 g resulted in a significantly increased incidence of flap necrosis. The laser Doppler is a device of recent origin for the measurement of cutaneous blood flow. In this study, it provided a simple quantitative measure of the inverse relationship between skin tension and blood flow.

Prognostication of Myocutaneous Flap Viability using Laser Doppler Velocimetry and Fluorescein Microfluorometry

1984 ◽  
Vol 92 (5) ◽  
pp. 559-563 ◽  
Author(s):  
Charles W. Cummings ◽  
Ronald E. Trachy ◽  
Mark A. Richardson ◽  
H. Clifton Patterson
Keyword(s):  
Laser Doppler Velocimetry ◽  
Myocutaneous Flap ◽  
Laser Doppler ◽  
Doppler Velocimetry ◽  
Flap Viability

scholarly journals Investigation of Internal Flow in Centrifugal Pump Diffuser using Laser Doppler Velocimetry (LDV) and Computational Fluid Dynamics

2021 ◽  
Vol 1909 (1) ◽  
pp. 012075
Author(s):  
Daisuke Sugiyama ◽  
Asuma Ichinose ◽  
Tomoki Takeda ◽  
Kazuyoshi Miyagawa ◽  
Hideyo Negishi ◽  
...  
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Centrifugal Pump ◽  
Laser Doppler Velocimetry ◽  
Internal Flow ◽  
Laser Doppler ◽  
Doppler Velocimetry

scholarly journals Laser-Doppler Velocimetry Measurements Inside a Backward Curved Centrifugal Fan

2001 ◽  
Vol 7 (3) ◽  
pp. 173-181
Author(s):  
Tong-Miin Liou ◽  
Meng-Yu Chen
Keyword(s):  
Flow Rate ◽  
Turbulence Intensity ◽  
Laser Doppler Velocimetry ◽  
Reverse Flow ◽  
Flow Region ◽  
Design Flow ◽  
Laser Doppler ◽  
Centrifugal Fan ◽  
Doppler Velocimetry ◽  
Flow Rates

Laser-Doppler velocimetry (LDV) measurements are presented of relative mean velocity and turbulence intensity components inside the impeller passage of a centrifugal fan with twelve backward curved blades at design, under-design, and over-design flow rates. Additional LDV measurements were also performed at the volute outlet to examine the uniformity of the outlet flow for the three selected flow rates. Complementary flow visualization results in the tongue region are further presented. It is found that the number of characteristic flow regions and the average turbulence level increase with decreasing air flow rate. For the case of under-design flow rate, there are a through-flow region on the suction side, a reverse flow region on the pressure side, and a shear layer region in between. The corresponding average turbulence intensity is as high as 9.1% of blade tip velocity.

scholarly journals Imaging laser Doppler velocimetry

2011 ◽  
Vol 52 (4) ◽  
pp. 1017-1026 ◽  
Author(s):  
Alexander H. Meier ◽  
Thomas Roesgen
Keyword(s):  
Laser Doppler Velocimetry ◽  
Laser Doppler ◽  
Doppler Velocimetry
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