Symmetry boundary condition in dissipative particle dynamics

Pal, Souvik; Lan, Chuanjin; Li, Zhen; Hirleman, E. Dan; Ma, Yanbao

doi:10.1016/j.jcp.2015.03.025

Cited by 7 publications

(2 citation statements)

References 33 publications

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“…In this subsection, the AFM tip is composed of two different regions (bodies): a spherical tip and a truncated conical region . The configuration is shown in Figure a.…”

Section: Resultsmentioning

confidence: 99%

Effect of Wetting and Dewetting Dynamics on Atomic Force Microscopy Measurements

et al. 2019

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Water bridge dynamics between an atomic force microscopy (AFM) tip and a flat substrate is studied by using a multibody dissipative particle dynamics (MDPD) model. First, the numerical model is validated by comparing the present results of droplet contact angles and liquid bridges with those reported in the literature. Then, the ability of MDPD to capture the meniscus shape and behavior for different operating conditions and geometric parameters is examined for both static and dynamic cases. Hence, several parametric studies and analyses of the AFM tip configuration and its operating conditions are reported. It is found that a critical capillary number of about 0.001 is calculated based on 5% change on the force measurements between the static and dynamic results. It is also demonstrated that the hysteresis behavior in the capillary force exerted on the AFM tip can be successfully predicted by using the MDPD model when the tip approaches or retracts from the substrate. Moreover, there is an excellent agreement in the results of breakup distance for different water bridge volumes between the predictions of the MDPD model and the theory. Also, the hysteresis of capillary force exerted on an AFM tip composed of multibody design is studied. The prediction on the transition of the capillary force vs distance between the AFM tip and the substrate is in good agreement with the experimental results. Therefore, we demonstrate a validated MDPD model which can successfully capture liquid bridge dynamics. This model can be used as a powerful design tool for meniscus manipulation technology, such as dip-pen nanolithography, as well as for studying dynamic, e.g., tapping mode AFM tip, interactions with a liquid bridge.

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“…In this subsection, the AFM tip is composed of two different regions (bodies): a spherical tip and a truncated conical region . The configuration is shown in Figure a.…”

Section: Resultsmentioning

confidence: 99%

Effect of Wetting and Dewetting Dynamics on Atomic Force Microscopy Measurements

et al. 2019

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“…Then the bead will re‐enter into the flow field with velocity v i . This third category of boundary condition methods has been widely applied to the simulation of various complex fluids through some different designs and changes …”

Section: Methods and Boundary Conditionsmentioning

confidence: 99%

Simulating Transport of Soft Matter in Micro/Nano Channel Flows with Dissipative Particle Dynamics

Yang

Zhu

et al. 2018

Advcd Theory and Sims

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The flow-induced transport of various soft matter systems through a fluidic channel has recently attracted great interest due to its significance ranging from the understanding of several chemical and biological processes to potential industrial and technical applications. Dynamic simulation and modeling can yield an insight into the detailed conformational, dynamical, and transport properties of soft matter systems, which is necessary to understand the transport properties of biological macromolecules in living organisms. As a mesoscopic particles-based simulation technique, dissipative particle dynamics (DPD) has quickly been adopted as a promising approach for simulating dynamic and rheological properties of simple and complex fluids as well as the events taking place inside the fluidic channels. Here, the DPD method widely used in predicting the channel flow containing various soft matter systems is reviewed. The general aspect and basic formulations of DPD are introduced, and different boundary conditions are presented for wall-bounded flows. In addition, the models based on DPD developed to simulate flow-induced transport through fluidic channels for some typical soft matter systems are discussed, including red blood cells, vesicles, polymers, and biomacromolecules. Finally, the future directions to signify the framework in enhancing the design of novel functional systems and beyond are discussed.

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All-natural and triple-inspired Janus electrospun fibers with integrated functions for high-performance liquid food packaging

Wu,

Wang,

et al. 2024

Chemical Engineering Journal

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Symmetry boundary condition in dissipative particle dynamics

Cited by 7 publications

References 33 publications

Effect of Wetting and Dewetting Dynamics on Atomic Force Microscopy Measurements

Effect of Wetting and Dewetting Dynamics on Atomic Force Microscopy Measurements

Simulating Transport of Soft Matter in Micro/Nano Channel Flows with Dissipative Particle Dynamics

All-natural and triple-inspired Janus electrospun fibers with integrated functions for high-performance liquid food packaging

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