多孔介质
机械
饱和(图论)
压缩性
磁导率
材料科学
多孔性
流量(数学)
几何学
复杂几何
两相流
模拟
物理
工程类
数学
复合材料
化学
生物化学
膜
组合数学
作者
Debabrata Adhikari,Suhasini Gururaja,Santosh Hemchandra,Jan Kočí
标识
DOI:10.1177/07316844221143517
摘要
Present work demonstrates the complete numerical modeling and experimental validation of transient incompressible two-phase flow during vacuum infusion (VI) in the presence and absence of high permeability media (HPM) considering gravity effects. Coupled flow modeling based on continuity equations, Darcy’s law for porous media flow, including gravity effects with level set front tracking algorithm, has been developed on the multiblock-structured grid with higher-order finite-difference framework to predict the spatio-temporal preform saturation during infusion with/without HPM on the complex mold configurations. The model-predicted instantaneous change in pressure, thickness elevation, fill time, flow front positions, and influence of gravity have been validated with experiments for horizontal and vertical flat plates using pressure sensors and digital cameras. For the first time, the complete modeling and experimentation of transient VI in the presence or absence of HPM, including gravity, shows the ability to predict realistic preform saturation during VI in different mold geometry.
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