Journal article
Data-driven turbulence modelling of inherently unsteady flow in stratified water storage tanks
X Xu, A Haghiri, RD Sandberg, T Oda, K Tanimoto
International Journal of Heat and Mass Transfer | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2024
Abstract
The flow and thermal characteristics of thermal stratification appears in a wide range of industrial applications related to energy storage. In a previous study (Xu et al. submitted to Flow, Turbulence and Combustion), it has been shown that linear closure models in unsteady Reynolds averaged Navier–Stokes (RANS) calculations are unable to accurately capture the transient flow and thermal characteristics occurring in stratified water storage tank configurations. In the current study, we extend a data-driven framework to develop turbulence and heat flux closures for a three-dimensional (3D) geometry of a stratified water storage tank, using data from a highly resolved large eddy simulation. T..
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Awarded by Australian Government
Funding Acknowledgements
The University of Melbourne authors wish to acknowledge Mitsubishi Heavy Industries, Ltd. for their financial support and permission to publish. Funding from the Australian Research Council (ARC) is acknowledged, through the linkage project LP180100712 and the future fellowship FT190100072. We also thank Prof. Lieve Helsen for making their data available. The simulations conducted were enabled by resources provided by the Pawsey supercomputing Centre with funding from the Australian Government and the Government of Western Australia under the National Computational Merit Allocation Scheme, under project bq2 (High-fidelity simulations of turbulent flows in power generation and transport). We thank the anonymous reviewers for their helpful comments.