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RISHigh-Fidelity Simulations of Multi-Jet Impingement Cooling Flows
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This article shows the first parametric study on turbulent multi-jet impingement cooling flows using large-eddy simulations (LES). We focus on assessing the influence of the inter-jet distance and the cross-flow conditions ...
Improving a Two-Equation Eddy-Viscosity Turbulence Model for High-Rayleigh-Number Natural-Convection Flows Using Machine Learning
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study presents data-driven modeling of the Reynolds stress tensor and turbulent heat flux vector for improving unsteady Reynolds-averaged Navier–Stokes (RANS) predictions of natural convection problems. While RANS-based ...
Experimental and Numerical Study for Improved Understanding of Mixed-Convection Type of Flows in Turbine Casing Cavities During Shut-Down Regimes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Due to an increase in the power generation from renewable sources, steam and gas turbines will be required to adapt for more flexible operations with frequent start-ups and shut-downs to provide load leveling capacity. ...
Interface Capturing Flow Boiling Simulations in a Compact Heat Exchanger
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: High-fidelity flow boiling simulations are conducted in a vertical mini channel with offset strip fins (OSF) using R113 as a working fluid. Finite-element code PHASTA coupled with level set method for interface capturing ...
Experimental Study of Horizontal Bubble Plume With Computational Fluid Dynamics Benchmarking
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In order to study the twophase flow behaviors of a horizontal bubble plume in a tank, experimental tests along with computational fluid dynamics (CFD) simulations were carried out in this paper. An experimental facility ...