An advanced hybrid smoothed particle hydrodynamics–fluid implicit particle method on adaptive grid for condensation simulation,Computer Animation and Virtual Worlds

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An advanced hybrid smoothed particle hydrodynamics–fluid implicit particle method on adaptive grid for condensation simulation
Computer Animation and Virtual Worlds ( IF 0.9 ) Pub Date : 2020-09-28 , DOI: 10.1002/cav.1967
Jiajun Shi ₁ , Chen Li ₁ , Changbo Wang ₁ , Hong Qin ₂ , Gaoqi He ₁

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In this article, we propose a novel hybrid framework by combining smoothed particle hydrodynamics and adaptive narrow band fluid implicit particle method (NB‐FLIP) to faithfully model the multiphysical processes involving heat transfer and phase transition, and to precisely simulate the dynamics of condensed droplets moving along intricate objects. We first formulate a governing physical model built upon an improved phase transition model and an augmented on‐surface drop analysis method to achieve realistic condensation effects over intricate hydrophilic/hydrophobic interface. To achieve both high‐fidelity interactions and high‐resolution visual effects, we further develop an adaptive NB‐FLIP solver with octree‐dictated background grid in order to further enhance the performance of our framework. Experimental results have shown that our approach can be used to efficiently and realistically simulate the small‐scale interaction details between condensed drops and complex objects with arbitrary geometry.

中文翻译：

一种先进的混合光滑粒子流体动力学-流体隐式粒子方法在自适应网格上进行冷凝模拟

在本文中，我们通过结合平滑粒子流体动力学和自适应窄带流体隐式粒子方法 (NB-FLIP) 提出了一种新的混合框架，以忠实地模拟涉及传热和相变的多物理过程，并精确模拟凝聚液滴的动力学沿着复杂的物体移动。我们首先制定了一个基于改进的相变模型和增强的表面液滴分析方法的控制物理模型，以在复杂的亲水/疏水界面上实现真实的冷凝效果。为了实现高保真交互和高分辨率视觉效果，我们进一步开发了具有八叉树指定背景网格的自适应 NB-FLIP 求解器，以进一步提高我们框架的性能。

更新日期：2020-09-28

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