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Author: Enrique Cabrera Publisher: Springer ISBN: 9401093857 Category : Technology & Engineering Languages : en Pages : 1210
Book Description
Hydraulic machinery such as turbines and pumps is widely used around the world. Related topics concerning design, operation and maintenance are of relevant interest. In this context, cavitation is a phenomenon to be taken into account, and this was treated in the XVIII IAHR Symposium on Hydraulic Machinery and Cavitation which took place in Valencia, Spain, 16th-19th September, 1996 and which was hosted by the Polytechnic University of Valencia. The proceedings of the Symposium have been published in two volumes. In this first volume, the papers included cover the following topics: Hydraulic Turbines, Analysis and Design Hydraulic Pumps Hydraulic Elements, Dynamic Characterization and Hydraulic Behaviour Cavitation and Sand Erosion In the second volume, the papers included cover the following topics: Hydraulic Transients and Control Systems Related to Hydraulic Machinery and Plants Oscillatory and Vibration Problems in Hydraulic Machinery and Power Stations Experimental Investigations related to Hydraulic Machinery and its Applications Practical Applications of the Hydraulic Machinery Monitoring, Predictive Maintenance and Refurbishment The 119 papers presented at the Symposium, from research groups, consulting companies and manufacturers, constitute an important collection for investigators, engineers and technicians who are interested in updated information on hydraulic machinery. This book is intended to be a reference text comprising the latest innovations on this subject.
Author: Philippe Morel Publisher: ISBN: Category : Languages : fr Pages : 420
Book Description
Cette étude concerne l'analyse expérimentale des écoulements internes à une roue de pompe centrifuge, s'appuyant sur la mesure embarquée des pressions moyennes pariétales. Elle a été menée au sein du laboratoire de mécanique de Lille (ura cnrs 1441). La géométrie de pompe centrifuge retenue pour les essais est celle dite roue shf. Dans le cadre de ce projet, nous avons conçu et réalisé une nouvelle installation expérimentale pour des essais en air, ou les environnements amont et aval de la roue sont complètement axisymétriques. Nous avons en particulier utilisé une démarche de conception intégrée pour la réalisation en cfao de la maquette de roue, son instrumentation en prises de pression, et l'exploitation des résultats de mesure. On aboutit ainsi à une roue de grande qualité géométrique, et les emplacements des mesures dans la roue (114 prises de pression indépendantes) sont connus avec une grande précision, ce qui permet une exploitation optimale des résultats obtenus. Nous proposons une confrontation de nos résultats de mesure de pression à différents débits avec des résultats issus de quatre codes de calcul d'écoulements internes (quasi tridimensionnel et tridimensionnel, avec ou sans prise en compte des effets visqueux), qui permet de mettre en évidence certaines limites de validité des modèles utilisés. Les mesures de pression sont également interprétées, d'abord de façon globale par évaluation du couple sur l'arbre associé aux pressions sur aubages, ce qui permet d'estimer la part des effets visqueux dans le transfert d'énergie entre la roue et le fluide. L'évolution du champ des pressions en fonction du débit est ensuite analysée vis-à-vis du comportement des couches limites. Une analyse plus détaillée est enfin effectuée en entrée de roue, en relation avec d'une part l'apparition de la recirculation d'entrée, et d'autre part le développement prévisible des figures de cavitation dans une roue homothétique en eau.
Author: Enrique Cabrera Publisher: Springer ISBN: 9401093857 Category : Technology & Engineering Languages : en Pages : 1210
Book Description
Hydraulic machinery such as turbines and pumps is widely used around the world. Related topics concerning design, operation and maintenance are of relevant interest. In this context, cavitation is a phenomenon to be taken into account, and this was treated in the XVIII IAHR Symposium on Hydraulic Machinery and Cavitation which took place in Valencia, Spain, 16th-19th September, 1996 and which was hosted by the Polytechnic University of Valencia. The proceedings of the Symposium have been published in two volumes. In this first volume, the papers included cover the following topics: Hydraulic Turbines, Analysis and Design Hydraulic Pumps Hydraulic Elements, Dynamic Characterization and Hydraulic Behaviour Cavitation and Sand Erosion In the second volume, the papers included cover the following topics: Hydraulic Transients and Control Systems Related to Hydraulic Machinery and Plants Oscillatory and Vibration Problems in Hydraulic Machinery and Power Stations Experimental Investigations related to Hydraulic Machinery and its Applications Practical Applications of the Hydraulic Machinery Monitoring, Predictive Maintenance and Refurbishment The 119 papers presented at the Symposium, from research groups, consulting companies and manufacturers, constitute an important collection for investigators, engineers and technicians who are interested in updated information on hydraulic machinery. This book is intended to be a reference text comprising the latest innovations on this subject.
Author: John Tuzson Publisher: John Wiley & Sons ISBN: 9780471361008 Category : Technology & Engineering Languages : en Pages : 316
Book Description
Zentrifugalpumpen werden in den verschiedensten Bereichen eingesetzt - etwa in städtischen Versorgungssystemen zum Pumpen von Wasser oder in Maschinen zum Pumpen von Öl -, denn sie sind zuverlässig und dabei moderat im Kosten- und Wartungsaufwand. Der Autor dieses Buches kann auf Erfahrungen aus langjähriger Tätigkeit in der Industrie zurückgreifen. Er erklärt Ihnen Konstruktion und Analyse der wichtigsten Pumpensysteme. (11/00)
Author: Martin Oberlack Publisher: Springer ISBN: 3709125642 Category : Science Languages : en Pages : 377
Book Description
The term "turbulence” is used for a large variety of dynamical phenomena of fluids in motion whenever the details of the flow appear to be random and average properties are of primary interest. Just as wide ranging are the theoretical methods that have been applied towards a better understanding of fluid turbulence. In this book a number of these methods are described and applied to a broad range of problems from the transition to turbulence to asymptotic turbulence when the inertial part of the spectrum is fully developed. Statistical as well as nonstatistical treatments are presented, but a complete coverage of the subject is not attempted. The book will be of interest to scientists and engineers who wish to familiarize themselves with modern developments in theories of turbulence. The fact that the properties of turbulent fluid flow are addressed from very different points of view makes this volume rather unique among presently available books on turbulence.
Author: Heiner Klinkrad Publisher: Springer Science & Business Media ISBN: 3540376747 Category : Technology & Engineering Languages : en Pages : 438
Book Description
The future evolution of the debris environment will be forecast on the basis of traffic models and possible hazard mitigation practices. The text shows how large trackable objects will have re-entry pinpointed and predictions made on related risk assessment for possible ground impact. Models will also be described for meteoroids which are also a prevailing risk.
Author: Enrique Cabrera
Author: Philippe Morel
Author: Phillippe Morel
Author: Enrique Cabrera
Author: John Tuzson
Author: 
Author: Martin Oberlack
Author: Heiner Klinkrad
Author: