不同微结构蠕虫状胶束流体中上升气泡的振荡运动
Oscillatory Motion of Rising Bubbles in Wormlike Micellar Fluids with Different Microstructures
摘要：
以前的观察非瞬态振荡的上升气泡和下降的蠕虫状胶束流体中的球仅限于一个单一的表面活性剂系统。我们提出了一个广泛的调查上升的气泡在另一个系统中，氯化十六烷基吡啶和水杨酸钠的水溶液，有和没有NaCl，在一系列的浓度和温度。在不同的浓度范围内可以看到两种不同类型的振荡，每种振荡都有自己的温度依赖性。流变学数据允许识别具有不同流体微观结构的这些不同流体动力学状态。
英文摘要：
Previous observations of the nontransient oscillations of rising bubbles and falling spheres in wormlike micellar fluids were limited to a single surfactant system. We present an extensive survey of rising bubbles in another system, an aqueous solution of cetylpyridinium chloride and sodium salicylate, with and without NaCl, across a range of concentrations and temperatures. Two different types of oscillation are seen in different concentration ranges, each with its own temperature dependence. Rheological data allows for the identification of these different hydrodynamic states with different fluid microstructures.
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