Investigations of the Converging Flows of Low-Density-Polyethylenes by Laser-Doppler-Velocimetry (LDV)

1998 ◽  
pp. 495-496 ◽  
Author(s):  
M. Schmidt ◽  
E. Waßner ◽  
H. Münstedt
Keyword(s):  
Laser Doppler Velocimetry ◽  
Laser Doppler ◽  
Low Density ◽  
Doppler Velocimetry

Entry flow of a low-density-polyethylene melt into a slit die: An experimental study by laser-Doppler velocimetry

1999 ◽  
Vol 43 (6) ◽  
pp. 1339-1353 ◽  
Author(s):  
E. Wassner ◽  
M. Schmidt ◽  
H. Münstedt
Keyword(s):  
Experimental Study ◽  
Laser Doppler Velocimetry ◽  
Laser Doppler ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Doppler Velocimetry ◽  
Polyethylene Melt ◽  
Slit Die

Dynamic laser doppler velocimetry on solid surfaces

1991 ◽  
Author(s):  
Milind M. Rajadhyaksha ◽  
Warren H. Stevenson
Keyword(s):  
Laser Doppler Velocimetry ◽  
Laser Doppler ◽  
Solid Surfaces ◽  
Doppler Velocimetry

Validation of Wind Tunnel as Reference for Evaluation of Flare Gas Flow Meters Using Laser Doppler Velocimetry Technique

2020 ◽  
Author(s):  
Ligia Franco ◽  
Matheus Damacena ◽  
Rafael Rodrigues Médici ◽  
Rogerio Ramos
Keyword(s):  
Wind Tunnel ◽  
Laser Doppler Velocimetry ◽  
Gas Flow ◽  
Laser Doppler ◽  
Doppler Velocimetry ◽  
Flow Meters

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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