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A generalized reduced fluid dynamic model for flow fields and electrodes in redox flow batteries
- Source :
- AIChE Journal vol.68 (2022) nr.4 [ISSN 0001-1541]
- Publication Year :
- 2022
-
Abstract
- High-dimensional models typically require a large computational overhead for multiphysics applications, which hamper their use for broad-sweeping domain interrogation. Herein, we develop a modeling framework to capture the through-plane fluid dynamic response of electrodes and flow fields in a redox flow cell, generating a computationally inexpensive two-dimensional (2D) model. We leverage a depth-averaging approach that also accounts for variations in out-of-plane fluid motion and departures from Darcy's law that arise from averaging across three-dimensions (3D). Our resulting depth-averaged 2D model successfully predicts the fluid dynamic response of arbitrary in-plane flow field geometries, with discrepancies of <5% for both maximum velocity and pressure drop. This corresponds to reduced computational expense, as compared to 3D representations (<1% of duration and 10% of RAM usage), providing a platform to screen and optimize a diverse set of cell geometries.
Details
- Database :
- OAIster
- Journal :
- AIChE Journal vol.68 (2022) nr.4 [ISSN 0001-1541]
- Notes :
- Cheng, Ziqiang
- Publication Type :
- Electronic Resource
- Accession number :
- edsoai.on1359189641
- Document Type :
- Electronic Resource