no code implementations • 20 Mar 2024 • Minglei Lu, Chensen Lin, Martian Maxey, George Karniadakis, Zhen Li
In order to bridge the gap between microscale stochastic fluid models and continuum-based fluid models for bubble dynamics, we develop a composite neural operator model to unify the analysis of nonlinear bubble dynamics across microscale and macroscale regimes by integrating a many-body dissipative particle dynamics (mDPD) model with a continuum-based Rayleigh-Plesset (RP) model through a novel neural network architecture, which consists of a deep operator network for learning the mean behavior of bubble growth subject to pressure variations and a long short-term memory network for learning the statistical features of correlated fluctuations in microscale bubble dynamics.
no code implementations • 30 Mar 2023 • Minglei Lu, Ali Mohammadi, Zhaoxu Meng, Xuhui Meng, Gang Li, Zhen Li
After an offline training, the DNO model can act as surrogate of physics-based FEA to predict the transient mechanical response in terms of reaction force and stress distribution of the IPCs to various strain loads in one second at an accuracy of 98%.
no code implementations • 19 Nov 2021 • Zheng Dang, Lizhou Wang, Junning Qiu, Minglei Lu, Mathieu Salzmann
We summarise our findings into a set of guidelines and demonstrate their effectiveness by applying them to different baseline methods, DCP and IDAM.
no code implementations • 17 Nov 2020 • Minglei Lu, Yu Guo, Fei Wang, Zheng Dang
Recently, 3D version has been improved greatly due to the development of deep neural networks.