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RISRANS Capabilities for Transonic Axial Compressor: A Perspective From GPPS Computational Fluid Dynamics Workshop
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Reynolds-averaged Navier–Stokes (RANS) simulations currently serve as the prevailing industrial method for simulating axial compressor flows, and this status is expected to persist in the foreseeable future. To evaluate ...
Uncertainty Quantification of Spalart–Allmaras Turbulence Model Coefficients for Simplified Compressor Flow Features
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Turbulence model in Reynolds-averaged Navier–Stokes (RANS) simulations has a crucial effect on predicting the compressor flows. In this paper, the parametric uncertainty of the Spalart–Allmaras (SA) turbulence model is ...
Experimental Evidence of the Thermal Cloak Based on the Path Design of the Heat Flux
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: We recently showed theoretically that the infinite singularity of the thermal cloak designed by transformation thermodynamics could be eliminated by a new method—the path design of the heat flux without any approximation. ...
A TurboOriented DataDriven Modification to the Spalart–Allmaras Turbulence Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The Spalart–Allmaras (SA) turbulence model is one of the most popular models applied to compressors, but it often overpredicts blockage size and hence underpredicts the stall margin. In this paper, a novel modification to ...
Uncertainty Quantification of Spalart–Allmaras Turbulence Model Coefficients for Compressor Stall
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The turbulence model in Reynolds-averaged Navier–Stokes simulations is crucial in the prediction of the compressor stall margin. In this paper, parametric uncertainty of the Spalart–Allmaras turbulence model in predicting ...
Shapley Additive Explanations of Multigeometrical Variable Coupling Effect in Transonic Compressor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Optimization algorithms in the compressor detailed design stage generate big data of geometries and corresponding performances, but these data are often not exploited efficiently to unveil hidden compressor design guidance. ...
Extension and Validation of the Turbomachinery Capabilities of SU2 Open Source Computational Fluid Dynamic Code
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Computational Fluid Dynamic (CFD) tools have revolutionized the way to design engineering systems, but most established codes are proprietary and closed-source, making it difficult, if not impossible, to modify, debug, or ...
Shear Strength of Stabilized Clay Treated with Soda Residue and Ground Granulated Blast Furnace Slag
Publisher: American Society of Civil Engineers
Abstract: This study examined soda residue (SR) and ground granulated blast furnace slag (GGBS) to stabilize soft soil in comparison with using portland cement (PC). The shear strength of samples was measured to study the additive ...
Investigation of Constraint Effect and Fracture Mode for Mixed Mode Inclination Surface Crack in Infinite Plate Under Compression
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The stress field, constraint effect, and fracture mode transition at crack tip of mixed mode I-II-III inclination surface crack under compression have been investigated. The effects of geometrical configurations (relative ...
On the Over-Prediction of Centrifugal Compressor Pressure Ratio in the High Impeller Tip Mach Number Regime
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Reynolds-averaged Navier–Stokes (RANS) simulation is a routinely used tool for turbomachinery research and development, but it often over-predicts the pressure ratio of centrifugal compressors especially in the high impeller ...