Penetration model and numerical simulation of supercritical CO₂ in GFRP

Due to the limitation of the processing technique and the materials feature, there usually exist numerous pores in Glass Fiber Reinforced Plastics (GFRP), which will reduce the performance in transfer supercritical CO₂ (sc-CO₂). The porous media model has been established to simulate the penetration behaviors of sc-CO₂ in different conditions by the software FLUENT. The penetration depth as a function of the time, and the effect of the temperature and pressure on the penetration rate of sc-CO₂ in GFRP have been studied by controlling both viscous and inertial resistance coefficient in this work. The result shows that the penetration rate of sc-CO₂ varies considerably with coefficients. The penetration rate decreases with the increase in the temperature and dramatically increases with the increase inthe pressure.