Download or read book Modeling of Swirling Flow in a Conical Diffuser written by Walter Gyllenram and published by . This book was released on 2003 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Simulation of Incompressible Turbulent Swirling Flow in Conical Diffusers written by Steven Armfield and published by . This book was released on 1987 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Swirling Flow Through Conical Diffusers written by and published by . This book was released on 1982 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Swirling Flow in Conical Diffusers written by Sabah Hassan Ridha Al-Obaidi and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book On the Formation of Vortex Breakdown Bubbles when Imparting Swirl to Conical Diffusers written by P. Frawley and published by . This book was released on 1992 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: To improve the efficiency of wide angled conical diffusers, it is sometimes necessary to impart swirl to the flow. When this swirl is of sufficient severity, a bubble occurs at the axis. This in turn causes blockage and the pressure recovery coefficient drops. This is undesirable. This paper aims at obtaining an understanding of the mechanism of vortex breakdown using Laser Doppler Anemometry, and flow simulation using computational techniques. The diffuser examined has a double conical angle of 40 deg and an area ratio of 4:1. The entry Reynold's number is maintained at 28.4 x 10 3. The parameters being examined are wall pressure distribution axial and tangential velocity profiles and finally kinetic energy of turbulence. The investigation throws light on the mechanics of vortex breakdown and reavels the probability of stalled flow creating the bubble formed at the axis using excess swirl. (Author).
Download or read book Computation of Turbulent Swirling Flows in Conical Diffusers with Tailpipes written by Nam-Hyo Cho and published by . This book was released on 1990 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Direct and Large Eddy Simulation VII written by Vincenzo Armenio and published by Springer Science & Business Media. This book was released on 2010-04-28 with total page 575 pages. Available in PDF, EPUB and Kindle. Book excerpt: After Surrey in 1994, Grenoble in 1996, Cambridge in 1999, Enschede in 2001, Munich in 2003 and Poiters in 2005, the 7th Workshop, DLES7, will be held in Trieste, again under the auspices of ERCOFTAC. Following the spirit of the series, the goal of this latest workshop is to establish a state-of-the-art of DNS and LES techniques for the computation and modeling of transitional/turbulent flows covering a broad scope of topics such as aerodynamics, acoustics, combustion, multiphase flows, environment, geophysics and bio-medical applications. This gathering of specialists in the field should once again be a unique opportunity for discussions about the more recent advances in the prediction, understanding and control of turbulent flows in academic or industrial situations.
Download or read book Modelling of Convective Heat and Mass Transfer in Rotating Flows written by Igor V. Shevchuk and published by Springer. This book was released on 2015-07-24 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph presents results of the analytical and numerical modeling of convective heat and mass transfer in different rotating flows caused by (i) system rotation, (ii) swirl flows due to swirl generators, and (iii) surface curvature in turns and bends. Volume forces (i.e. centrifugal and Coriolis forces), which influence the flow pattern, emerge in all of these rotating flows. The main part of this work deals with rotating flows caused by system rotation, which includes several rotating-disk configurations and straight pipes rotating about a parallel axis. Swirl flows are studied in some of the configurations mentioned above. Curvilinear flows are investigated in different geometries of two-pass ribbed and smooth channels with 180° bends. The author demonstrates that the complex phenomena of fluid flow and convective heat transfer in rotating flows can be successfully simulated using not only the universal CFD methodology, but in certain cases by means of the integral methods, self-similar and analytical solutions. The book will be a valuable read for research experts and practitioners in the field of heat and mass transfer.
Download or read book Numerical Simulation of Axisymmetric Turbulent Flow in Combustors and Diffusers written by Chain Nan Yung and published by . This book was released on 1988 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flow Induced Pulsation and Vibration in Hydroelectric Machinery written by Peter Dörfler and published by Springer Science & Business Media. This book was released on 2012-08-28 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the 1970’s, an increasing amount of specialized research has focused on the problems created by instability of internal flow in hydroelectric power plants. However, progress in this field is hampered by the interdisciplinary nature of the subject, between fluid mechanics, structural mechanics and hydraulic transients. Flow-induced Pulsation and Vibration in Hydroelectric Machinery provides a compact guidebook explaining the many different underlying physical mechanisms and their possible effects. Typical phenomena are described to assist in the proper diagnosis of problems and various key strategies for solution are compared and considered with support from practical experience and real-life examples. The link between state-of the-art CFD computation and notorious practical problems is discussed and quantitative data is provided on normal levels of vibration and pulsation so realistic limits can be set for future projects. Current projects are also addressed as the possibilities and limitations of reduced-scale model tests for prediction of prototype performance are explained. Engineers and project planners struggling with the practical problems will find Flow-induced Pulsation and Vibration in Hydroelectric Machinery to be a comprehensive and convenient reference covering key topics and ideas across a range of relevant disciplines.
Download or read book An Investigation of Conical Diffuser Performance with Swirling Inlet Flow written by A. Thakker and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress in Hybrid RANS LES Modelling written by Song Fu and published by Springer Science & Business Media. This book was released on 2012-08-14 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present book contains contributions presented at the Fourth Symposium on Hybrid RANS-LES Methods, held in Beijing, China, 28-30 September 2011, being a continuation of symposia taking place in Stockholm (Sweden, 2005), in Corfu (Greece, 2007), and Gdansk (Poland, 2009). The contributions to the last two symposia were published as NNFM, Vol. 97 and Vol. 111. At the Beijing symposium, along with seven invited keynotes, another 46 papers (plus 5 posters) were presented addressing topics on Novel turbulence-resolving simulation and modelling, Improved hybrid RANS-LES methods, Comparative studies of difference modelling methods, Modelling-related numerical issues and Industrial applications.. The present book reflects recent activities and new progress made in the development and applications of hybrid RANS-LES methods in general.
Download or read book Calculations of Diffuser Flows with an Anisotropic K epsilon Model written by and published by . This book was released on 1995 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental and Computational Investigations in Engineering written by Nenad Mitrovic and published by Springer Nature. This book was released on 2020-09-04 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings book is a collection of high-quality peer-reviewed research papers presented at the International Conference of Experimental and Numerical Investigations and New Technologies (CNNTech2020) held at Zlatibor, Serbia, from 29th June to 2nd July 2020. The book discusses a wide variety of industrial, engineering and scientific applications of the engineering techniques. Researchers from academia and industry present their original work and exchange ideas, experiences, information, techniques, applications and innovations in the field of mechanical engineering, materials science, chemical and process engineering, experimental techniques, numerical methods and new technologies.
Download or read book Numerical Simulation of Axisymmetric Turbulent Flow in Combustors and Diffusors written by and published by . This book was released on 1988 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress in Hybrid RANS LES Modelling written by Sharath Girimaji and published by Springer. This book was released on 2015-02-20 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers the proceedings of the Fifth Symposium on Hybrid RANS-LES Methods, which was held on March 19-21 in College Station, Texas, USA. The different chapters, written by leading experts, reports on the most recent developments in flow physics modelling, and gives a special emphasis to industrially relevant applications of hybrid RANS-LES methods and other turbulence-resolving modelling approaches. The book addresses academic researchers, graduate students, industrial engineers, as well as industrial R&D managers and consultants dealing with turbulence modelling, simulation and measurement, and with multidisciplinary applications of computational fluid dynamics (CFD), such as flow control, aero-acoustics, aero-elasticity and CFD-based multidisciplinary optimization. It discusses in particular advanced hybrid RANS-LES methods. Further topics include wall-modelled Large Eddy Simulation (WMLES) methods, embedded LES, and a comparison of the LES methods with both hybrid RANS-LES and URANS methods. Overall, the book provides readers with a snapshot on the state-of-the-art in CFD and turbulence modelling, with a special focus to hybrid RANS-LES methods and their industrial applications.
Download or read book Hydraulic Machinery And Cavitation Proceedings Of The Xix Iahr Symposium In 2 Volumes written by Hermod Brekke and published by World Scientific. This book was released on 1998-09-07 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydraulic machinery such as turbines and pumps are widely used. Topics dealing with its design, manufacture, use and maintenance are covered in this symposium.Topics covered in this volume include: analysis and design of hydraulic turbines and pumps; computational hydraulics and numerical simulation; experimental methods for hydraulic machinery studies; cavitation in hydraulic pressurized systems and components; fluid-structure interaction; hydraulic transients and control / expert systems; monitoring and predictive maintenance; monitoring and predictive maintenance; environmental consideration in turbine design and operation; oscillatory and vibration problems in power plants and pumping stations; practical applications of hydraulic machinery / innovative technology to small and large hydroelectric power plants and pumping stations; case studies including trouble shooting in hydraulic machinery systems.This volume consist of papers presented by researchers, academics, designers, manufacturers, managers, and engineers. It is an important reference for investigators who are interested in the latest innovations on Hydraulic machinery.
