27 Result(s)
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Article
A fractal-based 2D expansion method for multi-scale volume data visualization
Visualization of volume data is difficult to realize and control because the most common output device is a two-dimensional (2D) display and the most common input device is a mouse, which only allows 2D operat...
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Article
Study on concurrent measurements of velocity and density distributions for high-speed CO2 flow
Velocity and density distributions of a high-speed and initial CO2 jet flow have been analyzed concurrently by a developed three-dimensional digital speckle tomography and a particle image velocimetry (PIV). Two ...
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Article
Main results of the third international PIV Challenge
This paper presents the main results of the third international PIV Challenge which took place in Pasadena (USA) on the 19th and 20th of September 2005. This workshop was linked to the PIV05 International Symp...
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Article
Measurement of two overlapped velocity vector fields in microfluidic devices using time-resolved PIV
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Article
Mixing enhancement in a microfluidic device
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Article
X-ray visualization of powder flow in a screw feeder for different shaped screws
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Article
Measurement of the flow and its vibration in Japanese traditional bamboo flute using the dynamic PIV
All wind instruments produce sound due to the vibration of air inside of the instrument. In the case of a trumpet or a clarinet, the mouth or a reed helps to generate variable tones. In the case of a flute, th...
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Article
Visual / Visualize / Visualization
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Article
4D-PTV Measurements of an im**ed jet with a dynamic 3D-PTV
4D-PTV system was constructed. The measurement system consists of three high-speed high-definition cameras (1k × 1k, 2000 fps), Nd-Yag laser (2000 Hz) and a host computer. The GA-3D-PTV algorithm was used for ...
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Article
Main results of the Second International PIV Challenge
This paper presents the main results of the Second International PIV Challenge which took place in Busan (Korea) on the 19th and 20th of September 2003. This workshop was linked to the PIV03 International Symp...
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Article
Effect of korteweg stress in miscible liquid two-layer flow in a microfluidic device
Miscible liquid two-layer flow in a Y-shaped microfluidic device, which consists of microchannels with 120 μm in width and 35 μm in depth, is investigated by particle image velocimetry (PIV) to clarify the flo...
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Article
Rapid proton diffusion in microfluidic devices by means of micro-LIF technique
The micro-LIF (laser-induced fluorescence) technique was applied to the measurement of pH distributions in a chemically reacting flow in a microfluidic device. Two liquid streams were combined at the junction ...
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Article
Quantitative visualization of micro-tube flow using micro-PIV
This paper describes PIV measurements ofthe flow field in a micro round tube with an internal diameter of 100 μm in order to examine micro-scale effects. Since the refractive index of the micro tube almost cor...
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Chapter and Conference Paper
Dynamic PIV : a Strong Tool to Resolve the Unsteady Phenomena
This paper describes the application and future of the Dynamic PIV method. It consists of a high-speed camera with high-resolution, a high-speed pulse laser and a synchronization system. The equipments are alm...
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Article
Chemically racting liquid round jet
An experimental study was conducted on a chemically reacting liquid round free jet. The Laser Induced Fluorescence (LIF) technique was adopted to evaluate the mixing both the upstream region near the transitio...
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Article
3D shape reconstruction from synthetic images captured by a rotating periscope system with a single focal direction
A three-dimensional shape measurement system with only one camera and a rotating periscope is proposed. Many images are captured at every few degrees of periscope rotation. The distance along the optical axis ...
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Article
Preliminary study of two immiscible liquid layers subjected to a horizontal temperature gradient
Marangoni convection, driven by interfacial instability due to a surface tension gradient, presents a significant problem in the crystal growth process. To achieve better materials processing, it is necessary ...
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Article
Comparison of sub-pixel estimation of PIV using frequency response analysis
The frequency responses on sub-pixel evaluation techniques have been investigated using the Monte-Carlo technique. The frequency response by the FFT based cross-correlation gives very good results although som...
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Article
Visualization study on the layer formation of electro-rheological fluid
The visualization study on the microstructure of the Electro-Rheological (ER) fluid was carried out. The dense particle motion was difficult to visualize because of the severe light scattering by the particle ...
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Article
A novel algorithm for particle tracking velocimetry using the velocity gradient tensor
Most particle-tracking velocimetry (PTV) algorithms are not suitable for calculating the velocity vectors of a fluid flow subjected to strong deformation, because these algorithms deal only with flows due to ...
