A generalized zoning framework for development of CFD‐based reduced‐order compartment models

Abstract

While computational fluid dynamics (CFD)-based compartment models have gained popularity as a cost-effective alternative to full CFD modeling of complex mixing systems, model development involves significant trial-and-error efforts. This work presents a generalized zoning framework for the streamlined development of CFDbased compartment models with detailed characterization of the reduced-order representation of the flow physics. With a stirred tank as an illustrative case, reducedorder model for species transport and heat transfer with turbulent flow is derived, followed by introducing the generalized zoning framework to demonstrate how a reduced-order compartment model can be constructed based on a simplified CFD simulation. A test case of mixing two miscible thermal fluids is used to evaluate the CFD-based compartment model. The results demonstrate that the proposed zoning framework exhibits an accurate representation of the CFD simulation of hydrodynamics and demonstrates capabilities of capturing species and heat transfer in turbulent flow systems with complex geometric configurations.

An Automatic Method for Generation of CFD-Based 3D Compartment Models: Towards Real-Time Mixing Simulations

“…More recent work aims at utilizing results from CFD simulations to formulate the compartment volumes and exchange flowrates [12]. Some articles use the CFD results to determine the exchange flowrates between manually set compartments [12][13][14][15][16][17], while others also use the CFD results to identify a 2D compartment network [18][19][20].…”