一个硬核活性格子气体的水力动力学
Ritwik Mukherjee1, Soumyabrata Saha2, Tridib Sadhu2
1Tata Institute of Fundamental Research, International Centre for Theoretical Sciences, Bangalore 560089, India.
Physical review. E
|March 19, 2025
概括
我们开发了一种活性格子气体的波动性水力动力学模型,准确预测运动性诱导的相位分离边界和相关性,并通过模拟验证.
科学领域:
- 物理 物理学 物理
- 统计力学 统计力学
- 柔软的物质 软的物质
背景情况:
- 活性物质系统表现出新兴的集体行为,如运动性诱导相分离 (MIPS).
- 了解活性格子气体的相位行为,排除体积相互作用,对于建模生物和合成系统至关重要.
研究的目的:
- 为一个不包括体积相互作用的活性格子气体模型开发一个波动的水力动力学描述.
- 量化确定MIPS的相界,并分析相关函数.
主要方法:
- 波动的水力动力学理论.
- 无声水力动力学的稳定性分析.
- 包括倍增噪声的包括.
- 蒙特卡罗模拟的蒙特卡罗模拟
- 水力动力学方程的伪光谱代.
主要成果:
- 在MIPS阶段边界 (脊柱和双柱) 上的定量边界被推导出为近似一维和更高的.
- 波动水力学成功地描述了在同质阶段呈指数衰减的两点相关性.
- 理论预测与模拟结果有很好的一致性.
结论:
- 开发的波动水力动力学模型准确地捕获了活性格子气体中的MIPS.
- 该模型严格地分解为一个维度,突出了维度的重要性和相位行为上的约束.
相关概念视频
Kinetic Theory of an Ideal Gas
3.4K
A mole is defined as the amount of any substance that contains as many molecules as there are atoms in exactly 12 grams of carbon-12. An Italian scientist Amedeo Avogadro (1776–1856) formed the hypothesis that equal volumes of gas at equal pressure and temperature contain equal numbers of molecules, independent of the type of gas. Later, the hypothesis was developed to form the SI unit for measuring the amount of any substance.
The number of molecules in one mole is called...
The number of molecules in one mole is called...
3.4K
Trends in Lattice Energy: Ion Size and Charge
23.6K
An ionic compound is stable because of the electrostatic attraction between its positive and negative ions. The lattice energy of a compound is a measure of the strength of this attraction. The lattice energy (ÃÂÃÂHlattice) of an ionic compound is defined as the energy required to separate one mole of the solid into its component gaseous ions. For the ionic solid sodium chloride, the lattice energy is the enthalpy change of the process:
23.6K
Dimensionless Groups in Fluid Mechanics
165
Dimensionless groups in fluid mechanics provide simplified ratios that help analyze fluid behavior without relying on specific units. The Reynolds number (Re), which represents the ratio of inertial to viscous forces, distinguishes between laminar and turbulent flows, making it essential in the design of pipelines and aerodynamic surfaces. The Froude number (Fr), the ratio of inertial to gravitational forces, is particularly useful in predicting wave formation and hydraulic jumps in...
165
Heat Capacities of an Ideal Gas III
2.1K
The number of independent ways a gas molecule can move along straight line, rotate, and vibrate is called its degrees of freedom. Supposing d represents the number of degrees of freedom of an ideal gas, the molar heat capacity at constant volume of an ideal gas in terms of d is
2.1K
Heat Capacities of an Ideal Gas II
2.3K
For a system that undergoes a thermodynamic process at a constant volume condition, the heat absorbed is used only to increase the system's internal energy and not for doing any kind of work. While for a system undergoing a thermodynamic process under a constant pressure condition, the amount of heat absorbed is used not only for increasing the internal energy (as a function of temperature) but also for doing some work. The molar heat capacity is the amount of heat required to increase the...
2.3K
First Law: Particles in Two-dimensional Equilibrium
5.0K
Recall that a particle in equilibrium is one for which the external forces are balanced. Static equilibrium involves objects at rest, and dynamic equilibrium involves objects in motion without acceleration; but it is important to remember that these conditions are relative. For instance, an object may be at rest when viewed from one frame of reference, but that same object would appear to be in motion when viewed by someone moving at a constant velocity.
Newton's first law tells us about...
Newton's first law tells us about...
5.0K


