光滑耗散粒子动力学的稳定精确格式
Stable and accurate schemes for smoothed dissipative particle dynamics
摘要：
光滑耗散粒子动力学（SDPD）是一种介观粒子方法，允许选择模拟流体的分辨率水平。其运动方程的数值积分仍然受到缺乏满足所有所需性质的数值方案的影响：能量守恒，并行性和稳定性。SDPD和耗散粒子动力学与能量守恒（DPDE），这是另一个粗粒度的模型，使最近的数值方案的适应DPDE的SDPD设置之间的相似性。在本文中，我们引入了一个Metropolis步骤的波动/耗散部分的SDPD的积分，以提高其稳定性。
英文摘要：
Smoothed Dissipative Particle Dynamics (SDPD) is a mesoscopic particle method which allows to select the level of resolution at which a fluid is simulated. The numerical integration of its equations of motion still suffers from the lack of numerical schemes satisfying all the desired properties: energy conservation, parallelizability and stability. The similarities between SDPD and Dissipative Particle Dynamics with Energy conservation (DPDE), which is another coarse-grained model, enable the adaptation of recent numerical schemes developed for DPDE to the SDPD setting. In this article, we introduce a Metropolis step in the integration of the fluctuation/dissipation part of SDPD to improve its stability.
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