Analysis of flow-induced structure of polynieric fluid in a miatchannel for processing of nano composite materials
Analysis of flow-induced structure of polynieric fluid in a miatchannel for processing of nano composite materials
批准号:
18560667
负责人:
YASUDA Kazunori
金额:
$2.2万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (C)
财政年份:
2006
资助国家:
日本
项目状态:
已结题
起止时间:
2006 至 2007
中文摘要
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英文摘要
Flow-induced structure of polymer solutions has been estimated quantitatively around a small circular obstacle in a small channel, which has a 4 mm width and 1 mm depth. We made an original optical system to measure the birefringence of the test liquid, which corresponds to the change of the structure at a high resolution in a space of 0.1 mm step. Furthermore, we measured velocity distributions in the flow channel. As a result, in the upstream of the obstacle, the degree of molecular orientation decreases as the fluid particle flows towards the obstacle because the molecular orientation is aligned in the direction perpendicular to the flow due to the decelerating flow. Just upstream the obstacle, however, the degree of molecular orientation became large because the orientation is almost perfectly aligned in the direction perpendicular to the flow. On the other hand, in the downstream of the obstacle, the degree of molecular orientation became large as the fluid flows in the direction of the downstream due to the elongational flow. These measurements were carried out in a very small region in a channel space.Next, we measured the flow pattern and the velocity distribution in the flow of nano fiber suspension made of bacteria cellulose (BC fluid). The flow was visualized in the channel having rectangular cross section and a 4: 1 contraction. The velocity profile of the Newtonian fluid had a parabolic-like flow, but a plug-like flow in a BC fluid. The larger concentration of the BC became more plug-like velocity profile, because the BC fluid has a shear-thinning viscosity. Furthermore, we measured the vortex enhancement in the reentrant corner at the contraction. As a result, the vortex in the BC fluid became larger than that in a Newtonian fluid. This is because the BC fluid has a large elongational viscosity.
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Measurement of flow-induced birefringence in a small region
小区域内流动引起的双折射的测量
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
[Noriaki, Murakami, Kazunori, Yasuda]
通讯作者:
Yasuda
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
[Atsushi, Yamashita, Kazunori, Yasuda]
通讯作者:
Yasuda
微小領域における流動複屈折の測定
小区域内流动双折射的测量
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
[村上玄明, 保田和則]
通讯作者:
保田和則
高分子水溶液のマイクロチャネル内流れ
聚合物水溶液在微通道中的流动
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
[山下敦史, 保田和則]
通讯作者:
保田和則
Microflow of polymer solutions
聚合物溶液的微流
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
[Atsushi, Yamashita, Kazunori, Yasuda]
通讯作者:
Yasuda
共 6 条
Flow analysis in a nanoscale space using scanning electron microscope and its development to soft matter flow
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批准号:25630053
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项目类别:Grant-in-Aid for Challenging Exploratory Research
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资助金额:$2.33万
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财政年份:2013
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负责人:YASUDA Kazunori
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依托单位:
Clarification of signal transmission mechanism in mesenchymal cells during spontaneous cartilage regeneration induced by multi-functional synthetic gel
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批准号:23240070
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项目类别:Grant-in-Aid for Scientific Research (A)
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资助金额:$31.28万
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财政年份:2011
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负责人:YASUDA Kazunori
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依托单位:
Visualization and analysis of soft materials in nanoscale flow for Development of nanocomposites
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批准号:23656411
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项目类别:Grant-in-Aid for Challenging Exploratory Research
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资助金额:$2.25万
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财政年份:2011
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负责人:YASUDA Kazunori
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依托单位:
Analyses on a molecular mechanism of spontaneous articular cartilage regeneration induced in vivo by double-network gel
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批准号:20240045
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项目类别:Grant-in-Aid for Scientific Research (A)
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资助金额:$32.36万
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财政年份:2008
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负责人:YASUDA Kazunori
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依托单位:
Visualization and analysis of flow-induced structure in micro flow for production of nanofiber composite
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批准号:20560641
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$3.24万
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财政年份:2008
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负责人:YASUDA Kazunori
-
依托单位:
Clarification of Mechanism of the Tendon/Ligament Matrix Remodeling Induced by Various Mesenchymal Cells and Its Molecular Control
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批准号:16390425
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项目类别:Grant-in-Aid for Scientific Research (B)
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资助金额:$8.83万
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财政年份:2004
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负责人:YASUDA Kazunori
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依托单位:
Velocity measurement of velocity profile of complex fluids through a microchannel and the effect of the channel size on the flow pattern
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批准号:15560141
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$2.37万
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财政年份:2003
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负责人:YASUDA Kazunori
-
依托单位:
Visualization and numerical analysis of fiber orientation on weld line in processing for fiber-reinforced composite materials
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批准号:13650747
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$1.41万
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财政年份:2001
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负责人:YASUDA Kazunori
-
依托单位:
Integrated Analyses on adaptation and control mechanisms in remodeling of the extracellular matrix in the in situ frozen-thawed anterior cruciate ligament
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批准号:12470299
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项目类别:Grant-in-Aid for Scientific Research (B)
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资助金额:$9.15万
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财政年份:2000
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负责人:YASUDA Kazunori
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依托单位:
DEVELOPMENT OF HYBRID-TYPE ARTIFICIAL LIGAMENT COMPOSED OF BIOABSORBABLE SYNTHETIC FIBERS AND HUMAN COLLAGEN BIBER BUNDLES
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批准号:10558124
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项目类别:Grant-in-Aid for Scientific Research (B)
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资助金额:$7.36万
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财政年份:1998
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负责人:YASUDA Kazunori
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依托单位:
A biomechanical study on differences in the effect of stress deprivation on the in frozen extensor and flexor tendons.
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批准号:08671629
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$1.41万
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财政年份:1996
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负责人:YASUDA Kazunori
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依托单位:
Development and evaluation of durable hybrid-type artificial ligament composed of high molecular synthetic fibers and human collagen fiber bundles
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批准号:07558118
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项目类别:Grant-in-Aid for Scientific Research (A)
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资助金额:$8.45万
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财政年份:1995
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负责人:YASUDA Kazunori
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依托单位:
Ultrastructural analyzes on mechanism of effects of stress shielding on the mechanical properties of the in situ frozen patellar tendon.
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批准号:06671433
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项目类别:Grant-in-Aid for General Scientific Research (C)
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资助金额:$1.54万
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财政年份:1994
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负责人:YASUDA Kazunori
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依托单位:
海外基金