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Abstract: Both
the theoretical and experimental analyses on several typical micro
channels of the micro fluidic systems are presented. The flow patterns
of the rigging angle bend channel, the sudden expansive channel and the
elbow channel on the pressure driven mode are numerically analyzed by
using CFD simulation technology. The simulation method for the
electroosmosis is described and the electroosmosis flow inside the cross
channel is simulated. Four kinds of micro channel models are
micromachined with glass material and experimentally detected by using
Micro-PIV technology. A good agreement is obtained by comparing the
simulation results with the experimental results. From the results, The
Micro-PIV technology is indicated to be the most efficient experimental
method for micro flow detection. Furthermore, N-S equation is
experimentally proved to be correct in the micron flow numerical
simulation.
Key
words: Micro
fluidic system Micro-PIV CFD Electroosmosis
CLC No: TH137
TH-39
国家自然科学基金(50335010)和高等学校博士学科点专项科研基金(20030335026)资助项目. Received 20050610,
received in revised form 20051115
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