.png){kind=icon}
返回
A data-driven phase change model for injection flow modeling
.png){kind=icon}
PRE
AI
DOI：10.1063/5.0223244.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
A deep learning approach is developed to swiftly evaluate phase change in computational fluid dynamics (CFD) simulations of a multi-component, liquid-gas two-phase injection flow. This method significantly improves computational efficiency by using a deep feedforward neural network (DFNN) to replace the complex iterative solution of multi-species vapor-liquid equilibrium (VLE). The DFNN takes instantaneous pressure, temperature, and system composition as input and predicts the corresponding phase equilibrium state. A parametric study was conducted to optimize the neural network's hyperparameters, including the activation function, number of hidden layers, and neurons per hidden layer. The rate of phase change is then calculated as a linear relaxation toward phase equilibrium, guiding subsequent computational steps in the CFD solver. A case study was performed to test the proposed methodology, involving the injection of a superheated liquid ethanol-water mixture into a gaseous nitrogen environment. The simulation results and computational cost were examined. It is found that the DFNN model, while accurately representing the non-ideal non-equilibrium phase change of a multi-component injection flow, speeds up the VLE solution by four orders of magnitude, leading to a 30%-40% reduction in overall flow simulation time. This model shows promise for injection flow simulations, especially for systems with a large number of compositions, such as sustainable aviation fuels.
Keyword:
EQUILIBRIUM
SPRAY
EXPANSION
METHANOL
ETHANOL
HEPTANE
JET
期刊
IF:
4.3
论文数:
2.9W
被引数:
8.0W
机构
引用论文
Interactions between coronavirus nucleocapsid protein and viral RNAs: implications for viral transcription.冠状病毒核衣壳蛋白与病毒RNA之间的相互作用：对病毒转录的启示。.png)
IF0
PREAI
分享收藏First Report ofKlebsiella pneumoniae-Carbapenemase-3-ProducingEscherichia coliST479 in Poland波兰首次报道产3型碳青霉烯酶Klebsiella pneumoniae-携带Escherichia coliST479菌株。
OAAI
OAAI分享收藏Characterizing under-expansion behaviors induced by rapid phase change of flash-boiling jetsFUEL
FUELIF7.5
PREAI
分享收藏Host Filamentous Actin Is Associated with Heliothis armigera Single Nucleopolyhedrosis Virus (HaSNPV) Nucleocapsid Transport to the Host Nucleus宿主丝状肌动蛋白与 Heliothis armigera 单核型多角体病毒 (HaSNPV) 核衣壳向宿主细胞核的运输相关
PREAI
分享收藏Radial expansion of flash boiling jet and its relationship with spray collapse in gasoline direct injection engine直喷汽油机闪沸射流径向膨胀及其与喷雾塌陷的关系
PREAI
分享收藏
查看更多内容