毫米通道内滞留弹状流不同界面模式的共振频率
Resonance frequency of different interfacial modes of a slug trapped in a milli-channel
AI总结：
针对芯片实验室应用中声激发气泡系统需在共振频率下高效运行的需求，采用摄动技术与匹配渐近展开法确定毫米通道内矩形气弹振荡表面模式的共振频率，并通过仿真与实验验证了结果。
摘要：
细胞裂解、微混合和微泵送等多种芯片实验室应用均基于声激发振荡气泡诱导的流动。为实现高效率，系统必须在其共振频率下运行。在大多数系统中，气泡存在于受限几何结构中，共振频率由受限特性及其与液体流动的耦合决定。本研究采用摄动技术和匹配渐近展开法，确定了限制在毫米通道一端的矩形气弹振荡表面模式对应的共振频率。这些结果通过Ansys Fluent模拟和相似几何结构下的实验结果得到了验证。
英文摘要：
Several Lab on chip applications such as cell lysis, micromixing and micropumping are based on flows induced by acoustically excited oscillatory bubbles. For high efficiency, the system must be operated at its resonant frequency. In most systems the bubbles are present in a confined geometry where the resonant frequency is determined by the nature of confinement and its coupling with liquid flow. In this work, we determine the resonant frequencies corresponding to surface modes of oscillation of a rectangular gas slug confined at one end of a milli channel using perturbation techniques and matched asymptotic expansions. These are verified using simulations in Ansys Fluent and experimental results in similar geometry.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
