Results 41 to 50 of about 377,594 (201)
Numerical simulation of the flow topology over NREL’s S807 airfoil at different models of turbulence [PDF]
EPJ Web of ConferencesCurrent numerical simulations investigate subsonic flow around the NREL’s S807 airfoil without an incident angle at Reynolds numbers near 2.8∙105. This work is devoted to the assessment application of various turbulence models for a numerical simulation ...
Kosiak Pavlo +3 more
doaj +1 more source
The structure of the solution obtained with Reynolds-stress-transport models at the free-stream edges of turbulent flows [PDF]
, 2002 The behavior of Reynolds-stress-transport models at the free-stream edges of turbulent flows is investigated. Current turbulent-diffusion models are found to produce propagative (possibly weak) solutions of the same type as those reported earlier by ...
Cazalbou, Jean-Bernard +1 more
core +2 more sources
International Journal of Rotating Machinery, 1995 A numerical study is performed to investigate fluid flow and heat transfer characteristics in a concentric annulus with a slightly heated inner core moving in the flow direction and a stationary, insulated outer cylinder. Emphasis is placed on the effect
Shuichi Torii, Wen-Jei Yang
doaj +1 more source
A physical-space version of the stretched-vortex subgrid-stress model for large-eddy simulation [PDF]
, 2000 A physical-space version of the stretched-vortex subgrid-stress model is presented and applied to large-eddy simulations of incompressible flows. This version estimates the subgrid-kinetic energy required for evaluation of the subgrid-stress tensor using
Chan, Daniel C. +2 more
core +2 more sources
A new Reynolds stress algebraic equation model [PDF]
Computer Methods in Applied Mechanics and Engineering, 1995 A general turbulent constitutive relation is directly applied to propose a new Reynolds stress algebraic equation model. In the development of this model, the constraints based on rapid distortion theory and realizability (i.e. the positivity of the normal Reynolds stresses and the Schwarz' inequality between turbulent velocity correlations) are ...
Tsan-Hsing Shih +2 more
openaire +1 more source
Numerical Analysis of Flow Dynamics of Cyclone Separator Used for Circulating Fluidized Bed Boiler
Chemical Engineering Transactions, 2015 The Reynolds stress model (RSM) provided by FLUENT software was applied to study flow dynamics of a cyclone separator used for a circulating fluidized bed. The effect of the depth of the exhaust pipe on the flow field and performance of cyclone separator
H.X. Li, B.G. Gao, B. Li
doaj +1 more source
Reynolds-Stress Model Prediction of 3-D Duct Flows [PDF]
Flow, Turbulence and Combustion, 2015 submitted article, 46 pages, 24 ...
Gerolymos, G. A., Vallet, I.
openaire +2 more sources
Comparative study of transition models for high-angle-of-attack behavior [PDF]
, 2019 This paper considers transition modeling for the flow over small unmanned aerial vehicles with a span of around 1 m. Such flows are characterized by very low values of turbulence intensity, and the main cause for transition corresponds to flow separation.
Degroote, Joris +2 more
core +1 more source
Experimental Assessment of RANS Models for Wind Load Estimation over Solar-Panel Arrays
Applied Sciences, 2021 This paper reports a comparison between wind-tunnel measurements and numerical simulations to assess the capabilities of Reynolds-Averaged Navier-Stokes models to estimate the wind load over solar-panel arrays. The free airstream impinging on solar-panel
Alejandro Güemes +2 more
doaj +1 more source
Non-Oberbeck-Boussinesq zonal flow generation [PDF]
, 2018 Novel mechanisms for zonal flow (ZF) generation for both large relative density fluctuations and background density gradients are presented. In this non-Oberbeck-Boussinesq (NOB) regime ZFs are driven by the Favre stress, the large fluctuation extension ...
Held, Markus +3 more
core +3 more sources