Dynamic wetting phenomena in lattice models for nematic fluids/liquid crystals nearswitchable substrate potentials
向列流体/液晶晶格模型中可切换基底电势附近的动态润湿现象
基本信息
- 批准号:422785875
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Priority Programmes
- 财政年份:2019
- 资助国家:德国
- 起止时间:2018-12-31 至 2023-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Using theoretical methods and accompanying simulations, we will investigate liquid crystals near switchable substrates. Of particular interest is the approach to wetting transitions and switches between different wetting states.As a model system, we consider lattice rods with short–range attractions. We have developed and will further improve classical density functionals for these models as well as formulate a suitable dynamic density functional theory.Wetting phase diagrams will be computed for nematically ordered (upright or lying–down) and smectic (with possible layering transitions) films. Of particular interest will be the dynamics of smectic layer formation and the switching dynamics between nematic wetting states of different orientation. In these processes, there is little mass transport involved and thus we expect that a lattice dynamics akin to Brownian dynamics can describe these well.Complementary simulations of grand canonical and kinetic Monte Carlo type will be performed to gauge and validate the theoretical results. Through collaborations with experimental groups the results on time–dependence of smectic layering and of the switching between nematic wetting states shall be tested.
使用理论方法和伴随的模拟,我们将研究液晶附近的可切换基板。特别感兴趣的是润湿转变和不同润湿状态之间切换的方法。作为一个模型系统,我们考虑具有短程吸引力的格杆。我们已经开发并将进一步改进这些模型的经典密度泛函,以及制定一个合适的动态密度泛函theory.Wetting相图将计算向列有序(直立或躺下)和近晶(可能分层过渡)薄膜。特别感兴趣的是近晶层形成的动力学和不同取向的润湿状态之间的切换动力学。在这些过程中,几乎没有涉及到质量输运,因此我们期望类似于布朗动力学的晶格动力学可以很好地描述这些过程。通过与实验组的合作,将测试近晶分层和非晶润湿状态之间的切换的时间依赖性的结果。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Professor Dr. Martin Oettel其他文献
Professor Dr. Martin Oettel的其他文献
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{{ truncateString('Professor Dr. Martin Oettel', 18)}}的其他基金
Crystalline thin film growth in anisotropic mixtures: a combined approach by experiment, theory and simulation
各向异性混合物中的晶体薄膜生长:实验、理论和模拟相结合的方法
- 批准号:
271660218 - 财政年份:2015
- 资助金额:
-- - 项目类别:
Research Grants
Simple model systems: Static and dynamic aspects of heterogeneous nucleation within simulation, phase field crystal and dynamic density functional theory
简单模型系统:模拟中异相成核的静态和动态方面、相场晶体和动态密度泛函理论
- 批准号:
50848280 - 财政年份:2007
- 资助金额:
-- - 项目类别:
Priority Programmes
A Comparison Between Power Functional Theory and Projection Operator Formalisms as Approaches to Non-Equilibrium Statistical Physics
作为非平衡统计物理方法的幂泛函理论与投影算子形式主义的比较
- 批准号:
535083866 - 财政年份:
- 资助金额:
-- - 项目类别:
Research Grants
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DP180101254 - 财政年份:2018
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26400424 - 财政年份:2014
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