A two-dimensional lagrangian technique for flow field measurement under high dynamic pressure

1990 ◽  
Vol 6 (2) ◽  
pp. 188-192 ◽  
Author(s):  
Huan Shi ◽  
Ding Jing
Keyword(s):  
Flow Field ◽  
Field Measurement ◽  
Dynamic Pressure ◽  
Two Dimensional ◽  
High Dynamic Pressure ◽  
High Dynamic ◽  
Flow Field Measurement

Investigating Complex Non-Reacting Flow Field in Combustor With a Two-Dimensional LDA

1985 ◽  
Author(s):  
Lin Qixun ◽  
Ding Yisheng ◽  
Du Qinfang ◽  
Tang Ming ◽  
Xiao Ningfang
Keyword(s):  
Flow Field ◽  
Flow Pattern ◽  
Field Measurement ◽  
Recirculation Zone ◽  
Laser Doppler Anemometer ◽  
Reacting Flow ◽  
Tube Model ◽  
Two Dimensional ◽  
Complex Flow ◽  
Flow Field Measurement

A vaporizing tube model combustor was constructed and the non-reacting flow field in it was measured by employing a two-dimensional Laser Doppler Anemometer (LDA) systerm. The complex flow pattern, including the recirculation zone, can be identified clearly. The turbulence distribution can also be obtained. Some experience with LDA application to combustor flow field measurement had been summed up. The measured results had been compared with those measured by a conventional two-dimensional pitot probe.

scholarly journals Two-Dimensional Space-Time Image Velocimetry for Surface Flow Field of Mountain Rivers Based on UAV Video

2021 ◽  
Vol 9 ◽  
Author(s):  
Xiaolin Han ◽  
Kebing Chen ◽  
Qiang Zhong ◽  
Qigang Chen ◽  
Fujun Wang ◽  
...  
Keyword(s):  
Flow Field ◽  
Field Measurement ◽  
Space Time ◽  
Surface Flow ◽  
Two Dimensional ◽  
Mountain Rivers ◽  
Image Velocimetry ◽  
Search Line ◽  
Time Image ◽  
Flow Field Measurement

Space-time image velocimetry (STIV) is a promising technique for river surface flow field measurement with the development of unmanned aerial vehicles (UAVs). STIV can give the magnitude of the velocity along the search line set manually thus the application of the STIV needs to determine the flow direction in advance. However, it is impossible to judge the velocity direction at any points before measurement in most mountainous rivers due to their complex terrain. A two-dimensional STIV is proposed in this study to obtain the magnitude and direction of the velocity automatically. The direction of river flow is independently determined by rotating the search line to find the space-time image which has the most prominent oblique stripes. The performance of the two-dimensional STIV is examined in the simulated images and the field measurements including the Xiasi River measurements and the Kuye River measurements, which prove it is a reliable method for the surface flow field measurement of mountain rivers.

Suitability of high-dynamic-pressure-treated milk for the production of yoghurt

2004 ◽  
Vol 21 (6) ◽  
pp. 753-760 ◽  
Author(s):  
Rosalba Lanciotti ◽  
Lucia Vannini ◽  
Paola Pittia ◽  
Maria Elisabetta Guerzoni
Keyword(s):  
Dynamic Pressure ◽  
High Dynamic Pressure ◽  
High Dynamic
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