Second Moment Closure Modeling for Rotating Stably Stratified Turbulent Shear Flow PDF Download
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Author: Minsuk Ji Publisher: ISBN: 9780542983870 Category : Languages : en Pages : 260
Book Description
The new turbulence model is tested in various channel flows where inhomogeneity effects are important. Stably stratified channel flow, spanwise rotating channel flow with passive scalar, and natural convection flow in a vertical channel are considered. When compared with the predictions of the IP model, the new model yields better results for stably stratified channel flow, comparable results for rotating channel flow, and worse results for natural convection flow.
Author: Minsuk Ji Publisher: ISBN: 9780542983870 Category : Languages : en Pages : 260
Book Description
The new turbulence model is tested in various channel flows where inhomogeneity effects are important. Stably stratified channel flow, spanwise rotating channel flow with passive scalar, and natural convection flow in a vertical channel are considered. When compared with the predictions of the IP model, the new model yields better results for stably stratified channel flow, comparable results for rotating channel flow, and worse results for natural convection flow.
Author: Sharath Girimaji Publisher: ISBN: Category : Turbulence Languages : en Pages : 48
Book Description
Turbulence subject to unsteady forcing can exhibit novel features that cannot be explained using the well-known steady-turbulence paradigm. Modeling and prediction of such statistically unsteady flows are important in many practical AFOSR applications: turbine flows, wake-flows with vortex shedding, etc. Further, many flow control strategies depend upon the knowledge of unsteady turbulence dynamics to achieve the desired objectives. However, our understanding of unsteadily-forced turbulence dynamics or our ability to predict them is inadequate.
Author: Geoff Hewitt Publisher: Cambridge University Press ISBN: 9780521838993 Category : Mathematics Languages : en Pages : 366
Book Description
The prediction of turbulent flows is of paramount importance in the development of complex engineering systems involving flow, heat and mass transfer, and chemical reactions. Arising from a programme held at the Isaac Newton Institute in Cambridge, this volume reviews the current situation regarding the prediction of such flows through the use of modern computational fluid dynamics techniques, and attempts to address the inherent problem of modelling turbulence. In particular, the current physical understanding of such flows is summarised and the resulting implications for simulation discussed. The volume continues by surveying current approximation methods whilst discussing their applicability to industrial problems. This major work concludes by providing a specific set of guidelines for selecting the most appropriate model for a given problem. Unique in its breadth and critical approach, this book will be of immense value to experienced practitioners and researchers, continuing the UK's strong tradition in fluid dynamics.
Author: Wolfgang Rodi Publisher: Elsevier ISBN: 0080530958 Category : Science Languages : en Pages : 1011
Book Description
Proceedings of the world renowned ERCOFTAC (International Symposium on Engineering Turbulence Modelling and Measurements).The proceedings include papers dealing with the following areas of turbulence:·Eddy-viscosity and second-order RANS models ·Direct and large-eddy simulations and deductions for conventional modelling ·Measurement and visualization techniques, experimental studies ·Turbulence control ·Transition and effects of curvature, rotation and buoyancy on turbulence ·Aero-acoustics ·Heat and mass transfer and chemically reacting flows ·Compressible flows, shock phenomena ·Two-phase flows ·Applications in aerospace engineering, turbomachinery and reciprocating engines, industrial aerodynamics and wind engineering, and selected chemical engineering problems Turbulence remains one of the key issues in tackling engineering flow problems. These problems are solved more and more by CFD analysis, the reliability of which depends strongly on the performance of the turbulence models employed. Successful simulation of turbulence requires the understanding of the complex physical phenomena involved and suitable models for describing the turbulent momentum, heat and mass transfer. For the understanding of turbulence phenomena, experiments are indispensable, but they are equally important for providing data for the development and testing of turbulence models and hence for CFD software validation. As in other fields of Science, in the rapidly developing discipline of turbulence, swift progress can be achieved only by keeping up to date with recent advances all over the world and by exchanging ideas with colleagues active in related fields.
Author: Minsuk Ji
Author: Minsuk Ji
Author: Sharath Girimaji
Author: Charles G. Speziale
Author: T. H. Shih
Author: 
Author: Geoff Hewitt
Author: S. T. B. Young
Author: Wolfgang Rodi
Author: Brian Edward Launder
Author: Charles G. Speziale