Characteristics of rotor blade tip clearance flow in axial compressors can significantly affect their performance and stable operation. It may also increase blade vibrations and cause detrimental noises. Therefore, this paper is contributed to investigate tip leakage flow in a low speed isolated axial compressor rotor blades row. Simulations are carried out on near-stall condition, which is val...

The recently accentuated features of augmenting conventional wireless networks with high altitude platform systems (HAPS) have fueled a plethora applications, which promise to offer new services ground users, as well enhance the efficiency and pervasion existing applications. Cloud-enabled HAPS, aims create HAPS-based datacenters that cloud has particularly emerged promising key enabler provide...

The large-scale features of the global ocean circulation and the sensitivity of these features with respect to forcing changes are critically dependent upon the influence of the mesoscale eddy field. One such feature, observed in numerical simulations whereby the mesoscale eddy field is at least partially resolved, is the phenomenon of eddy saturation, where the time-mean circumpolar transport ...

Four subgrid-scale models based on large eddy simulation (LES), such as Smagorinsky–Lilly (SL), dynamic (DSL), wall-adapting local eddy-viscosity (WALE), and kinetic-energy transport (KET) were used couple Ffowcs Williams–Hawkings equation to accurately analyze identify the characteristics position of sound sources rod–airfoil interaction. The results four compared with experimental data. It wa...

The poleward propagation of zonal-mean relative angular momentum (MR) anomalies is examined using NCEP– NCAR Reanalysis data for both the winter and summer seasons of the Northern and Southern Hemisphere. This analysis is performed with a regression analysis using base latitudes in the subtropics, midlatitudes, and high latitudes. It is found that the poleward MR anomaly propagation occurs at a...

At the crossroad between flow topology analysis and the theory of turbulence, a new eddy-viscosity model for Large-eddy simulation has been recently proposed by Trias et al .[PoF, 27, 065103 (2015)]. The S3PQR-model has the proper cubic near-wall behaviour and no intrinsic limitations for statistically inhomogeneous flows. In this work, the new model has been tested for an air turbulent Rayleig...

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 The Hadley Cell . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Rossby Wave Radiation . . . . . . . . . . . . . . . . . . . . . . . . 9 Eddy Flux Closure. . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Stationary Eddies and Their Interaction with Transients . . . . . . . . . . . 20 5.1. Extratropical Statio...

Abstract Based on observations and eddy‐resolving model products, this study investigates the temperature variability south of Oyashio Extension (OE). During 2016–2021, six dramatic cold events, which significantly impact local ecosystems, are captured by in situ satellite observations. It reveals that interaction between OE front (OEF) anticyclonic mesoscale eddies originating from Kuroshio is...