| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
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| Research Abstract |
Flow patterns and a formation of higher-order flow-induced structured phase are investigated experimentally in the microchannel under a high shear rate flow of wormlike micelle solutions past arrays of microposts. The viscous streaks of higher-order structured phase formed in the flow were observed directly with a phase-contrast microscopy. With increase in flow rate, the starting point of higher-order structured phase formation is shifted to more upstream position in the channel until a critical flow rate is reached. Steady flow patterns are observed at lower flow rates, which are altered drastically as flow rate increases accompanied by a pulsating entry flow with narrow path into the gap between microposts.
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