双分散非布罗恩悬浮剂的风病学
Abhinendra Singh1,2,3, Christopher Ness4, Abhishek K Sharma3
1Department of Macromolecular Science and Engineering, <a href="https://ror.org/051fd9666">Case Western Reserve University</a>, Cleveland, Ohio 10040, USA.
Physical review. E
|October 19, 2024
概括
这项研究揭示了粒子大小和度如何影响悬浮物的流动行为. 将较小的颗粒添加到较大的颗粒中可以惊人地降低整体粘度,这是材料科学应用的关键发现.
科学领域:
- 类风病学 类风病学 类风病学
- 软物质物理学 软物质物理学
- 计算材料科学科学 计算材料科学
背景情况:
- 非布罗恩悬浮体表现出复杂的流动行为.
- 了解粒子相互作用对于预测宏观性质至关重要.
研究的目的:
- 为了研究双分散的非布罗恩悬浮液的质学.
- 将粘度绘制为粒子大小比率,丰度和固体含量的函数.
主要方法:
- 使用基于粒子的模拟.
- 粘度被分析为应用应力和组成的函数.
主要成果:
- 在所有组合中都观察到剪切加厚的行为.
- 限制固体分数显示对混合比的非单调依赖.
- 接触力分析显示,大-大和小-小粒子接触之间存在不对称的应力贡献转移.
结论:
- 通过整合剪切加厚和堵塞模型,开发了一种全面的类风学模型.
- 该模型成功地预测了在添加小颗粒到大颗粒悬浮中后的粘度降低.
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