Fundamental Study on PIV Analysis of Flow Field Visualized by Focusing Schlieren Method

2021 ◽  
Vol 20 (0) ◽  
pp. 97-100
Author(s):  
Masashi Kashitani ◽  
Masato Taguchi
Keyword(s):  
Flow Field ◽  
Schlieren Method ◽  
Fundamental Study ◽  
Piv Analysis

Nanoparticle Motion and Deposition Pattern From Evaporating Binary Droplets

2016 ◽  
Author(s):  
Xin Zhong ◽  
Fei Duan
Keyword(s):  
Flow Field ◽  
Binary Solution ◽  
Central Area ◽  
Droplet Surface ◽  
Sessile Droplet ◽  
Deposition Pattern ◽  
Fluorescent Microspheres ◽  
Nanoparticle Deposition ◽  
Image Velocimetry ◽  
Piv Analysis

The effect of ethanol in the binary solution sessile droplet is investigated on the flow field, nanoparticle motion and nanoparticle deposition pattern. It is found that the droplets with ethanol exhibited three distinct flow regimes through the Particle Image Velocimetry (PIV) analysis on the flow field of droplets suspended with fluorescent microspheres. Regime I features furious flows and vortices which transport particles to the liquid-vapor interface and make them aggregate. In regime II, the aggregates of particles move towards the central area of the droplet dominated by Marangoni flow led by non-uniformity of ethanol along the droplet surface. As the droplet enters regime III, most ethanol has evaporated and it is dominated by the drying of the remaining water. The loading of ethanol in the solution prolongs the relative durations of regimes I and II, resulting in the variety of the final drying pattern of nanoparticles.

Research on the Tip Sections of a Long Turbine Blade

2008 ◽  
Author(s):  
David Sˇimurda ◽  
Martin Luxa ◽  
Jaroslav Syna´cˇ ◽  
Pavel Sˇafarˇik
Keyword(s):  
Flow Field ◽  
Pressure Distribution ◽  
High Speed ◽  
Aerodynamic Characteristics ◽  
Rotor Blades ◽  
Schlieren Method ◽  
Blade Cascade ◽  
Integral Characteristics ◽  
Last Stage ◽  
Large Output

This paper reports on the results of high-speed aerodynamic research on a blade cascade. The blade cascade represents the tip section of the last stage rotor blades of a large output steam turbine. The aerodynamic characteristics of the blade cascade are presented together with flow field photographs in a range of transonic and supersonic velocities. Pictures of the flow field were obtained by means of interferometry and the schlieren method. The pressure distribution over the profiles was also evaluated using interferometry. Finally, the data for evaluating the losses and other integral characteristics of the flow exiting from the cascade were measured pneumatically with the use of a traversing device. The results are analyzed and discussed.

scholarly journals Dynamic PIV Analysis of the Flow Field Associated with the Mechanical Mitral Bi-leaflet Prostheses

2005 ◽  
Vol 25 (Supplement2) ◽  
pp. 211-212
Author(s):  
Takamasa FUKUDA ◽  
Jun SAITO ◽  
Kazumasa MORI ◽  
Toshinosuke AKUTSU
Keyword(s):  
Flow Field ◽  
Piv Analysis ◽  
Dynamic Piv

2D-PIV analysis of loach motion and flow field

2006 ◽  
Vol 9 (4) ◽  
pp. 393-401 ◽  
Author(s):  
K. Nagayama ◽  
K. Tanaka
Keyword(s):  
Flow Field ◽  
Piv Analysis
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