【摘 要】
：
针对移动粒子半隐式方法存在的稳定性差、精度低、计算效率低下、缺乏湍流模型和多相流界面算法等问题,对MPS方法开展深入研究,取得的进展如下:(1)提出了黏性项的精确度条件
【机 构】
：
西安交通动力工程多相流国家重点实验室,西安710049
论文部分内容阅读
针对移动粒子半隐式方法存在的稳定性差、精度低、计算效率低下、缺乏湍流模型和多相流界面算法等问题,对MPS方法开展深入研究,取得的进展如下:(1)提出了黏性项的精确度条件和稳定性条件;(2)为了减少湍流直接数值模拟的计算量,发展了静态和动态Smagonnsky亚粒子应力模型,实现了MPS的大涡模拟;(3)将MPS扩展至多相流动;(4)比较了多个求解器的并行表现,发现共轭梯度法是最合适的并行求解器.基于OpenMP/MPI模型完成了MPS的并行化,在100核的集群服务器上可加速51.25倍.
其他文献
A new ionic current rectification device responsive to a broad range of pH stimuli has been established using highly ordered nanochannels of porous anodic a
1-vinyl-3-octylimidazolium (ViOcIm+) based ionic liquids (ILs) monolithic capillary columns with different counter ions (bromide,Br-; tetrafluoroborate,BF4-
For the passive sheathless particle focusing in microfluidics,the equilibrium positions of particles are typically controlled by micro channels with V-shape
A technique combining an on-capillary concentration method known as large-volume sample stacking and high-efficiency CE separation has been developed to ana
对于复杂生化样品如血液中的致病微生物的PCR 检测,通常需要进行严格的样品前处理,以实现样品和极少量微生物的分离,保证分析结果可靠性的关键1.在本工作中,我们提出一种
We have developed a versatile protocol for large-scale characterization of hydrophobic membrane proteins based on the periodic mesoporous organosilica (PMO)
A group of proteins could interact with nanoparticles to form the protein corona on the surface when introduced into biological system,which would criticall
肿瘤细胞的快速增生，使得氧气和营养缺乏，促使了肿瘤血管的新生，而血管新生使得肿瘤进入循环系统转移到其他组织与器官的概率增大。因此，对肿瘤转移以及血管新生的研究已成为
Metallic nanoparticles with core-shell architecture have been used to increase the fluorescence intensity and improve the sensitivity of fluorescent detecti
对含微结构的非均质薄膜的褶皱机理和特征进行了研究.