作者: Neolithic 時(shí)間: 2025-3-21 22:24
https://doi.org/10.1007/978-3-642-97879-1 to hydraulic design is advocated. To this end, Chap. . introduces a novel concept for a fully analytical description of the impeller geometry. Prior to starting the hydraulic design all requirements the pump has to fulfill and the boundary conditions imposed should be thoroughly reviewed and docume作者: Microgram 時(shí)間: 2025-3-22 02:50
Design of the Hydraulic Components, to hydraulic design is advocated. To this end, Chap. . introduces a novel concept for a fully analytical description of the impeller geometry. Prior to starting the hydraulic design all requirements the pump has to fulfill and the boundary conditions imposed should be thoroughly reviewed and docume作者: Limited 時(shí)間: 2025-3-22 06:47
Reference Data and Definitions,This chapter deals with the calculation methods essentially common to all impellers and diffusing elements regardless of the specific type. The details of calculation and design of the various types of impellers and collectors are discussed in Chap.?..作者: 步兵 時(shí)間: 2025-3-22 10:19
Reference Data and Definitions,Following the changing operational requirements, practically all pumps temporarily operate away from the design point which is defined by ..作者: COM 時(shí)間: 2025-3-22 14:03
Der Flash-Mode im wahren MenschenHigh viscosities (low Reynolds numbers) impair the pump performance. Liquids with up to ν?=?3000?mm./s (3000 cSt) can be pumped with centrifugal pumps, but efficiencies drop to very low levels which make the operation highly uneconomic.作者: COM 時(shí)間: 2025-3-22 18:40
Der natürliche Mensch und sein ImpulssystemOperational problems can often be traced back to a non-optimum - or even downright wrong - pump selection. An unsuitable selection may result from insufficient knowledge of pump operation and installation conditions or from not giving them careful consideration and analysis.作者: AORTA 時(shí)間: 2025-3-23 01:05
EDV-Systeme in der Arbeitsvorbereitung,Tests on pumps are done with the object to verify performance and fitness for service, to find the reasons for malfunctions and to develop new or improved hydraulic components.作者: Cholecystokinin 時(shí)間: 2025-3-23 02:42
Pump Hydraulics and Physical Concepts,This chapter deals with the calculation methods essentially common to all impellers and diffusing elements regardless of the specific type. The details of calculation and design of the various types of impellers and collectors are discussed in Chap.?..作者: 厚顏無(wú)恥 時(shí)間: 2025-3-23 07:53
Performance Characteristics,Following the changing operational requirements, practically all pumps temporarily operate away from the design point which is defined by ..作者: 高深莫測(cè) 時(shí)間: 2025-3-23 10:42 作者: Venules 時(shí)間: 2025-3-23 16:42
Pump Selection and Quality Considerations,Operational problems can often be traced back to a non-optimum - or even downright wrong - pump selection. An unsuitable selection may result from insufficient knowledge of pump operation and installation conditions or from not giving them careful consideration and analysis.作者: 節(jié)省 時(shí)間: 2025-3-23 19:15 作者: myelography 時(shí)間: 2025-3-23 22:52
Johann Friedrich GülichDetailed design procedures for pumps.Large variety of ready to use tables for design calculations and diagnostics.In-depth treatment of the underlying physical mechanisms for practical applications.Co作者: magnanimity 時(shí)間: 2025-3-24 02:52
http://image.papertrans.cn/c/image/223227.jpg作者: 樂(lè)章 時(shí)間: 2025-3-24 06:46
Route selection and detailed line design,into a multitude of small cells, these equations can be solved in an . by numerical methods. Because of their wide range of application, numerical flow calculations (“computational fluid dynamics” or “CFD” for short) have become a special discipline of fluid dynamics.作者: 過(guò)于光澤 時(shí)間: 2025-3-24 10:40 作者: acrobat 時(shí)間: 2025-3-24 17:18 作者: Crater 時(shí)間: 2025-3-24 20:21
Objektorientierte Programmierung in Oberon-2based on a few basic physical laws only. In this chapter these will be briefly reviewed and their general nature illuminated. Emphasis will be on the phenomena which are of special interest and significance to the pump engineer. Basic knowledge of the terms of fluid dynamics is taken for granted. Th作者: BULLY 時(shí)間: 2025-3-25 02:39
https://doi.org/10.1007/978-3-642-97560-8r speed is described by the rate of flow delivered, the pressure rise achieved, the power absorbed at the coupling, the efficiency and the NPSH. Depending on the application a broad variety of pump types are offered on the market. All of these have at least one impeller and a collector where most of作者: cunning 時(shí)間: 2025-3-25 05:51 作者: 竊喜 時(shí)間: 2025-3-25 08:34 作者: 名次后綴 時(shí)間: 2025-3-25 13:47
https://doi.org/10.1007/978-3-642-97879-1 such as described in this chapter. The first design created that way is then subject to analysis and optimization by CFD. Even then the accuracy of performance prediction is not always satisfactory. This, because the 3D-flow through the pump depends on the complex shapes of the flow paths given by 作者: 大門(mén)在匯總 時(shí)間: 2025-3-25 15:50 作者: atopic 時(shí)間: 2025-3-25 20:05
Grundlagen der Linearen Optimierung,e significant for appropriate sizing of shaft and bearings. While the radial force is determined by the pressure distribution ., the axial force is governed by the flow through the impeller sidewall gaps and the resulting pressure distributions on the shrouds.作者: 斜谷 時(shí)間: 2025-3-26 00:39 作者: 無(wú)辜 時(shí)間: 2025-3-26 07:52
Der natürliche Mensch und sein Impulssystemich ensure that the pump operates in the range between the allowable minimum and maximum flow - in particular if pumps are operated in parallel. Proper procedures must be implemented for start and stop. Transient operation and unsteady phenomena which need attention include: dynamic instabilities ca作者: 碳水化合物 時(shí)間: 2025-3-26 12:01
Alles Bisherige zusammengepackt!pumping-brake mode”. There are a number of other abnormal modes of operation which are described by the “general characteristics”. These include a turbine mode where the liquid transfers power to the rotor, which can be used to drive an electrical generator or any other machine.作者: Genteel 時(shí)間: 2025-3-26 15:23 作者: 隼鷹 時(shí)間: 2025-3-26 20:09 作者: Brain-Waves 時(shí)間: 2025-3-26 23:24
Hydraulic Forces,e significant for appropriate sizing of shaft and bearings. While the radial force is determined by the pressure distribution ., the axial force is governed by the flow through the impeller sidewall gaps and the resulting pressure distributions on the shrouds.作者: Infantry 時(shí)間: 2025-3-27 04:35 作者: Fillet,Filet 時(shí)間: 2025-3-27 07:06
https://doi.org/10.1007/978-3-030-14788-4Fluid Dynamic Principles; Pump Types; Pump Hydraulics; Impact of 3-D Flow; Suction Capability and Cavita作者: Simulate 時(shí)間: 2025-3-27 09:29 作者: 北極熊 時(shí)間: 2025-3-27 16:11 作者: 燦爛 時(shí)間: 2025-3-27 19:45
https://doi.org/10.1007/978-3-642-97560-8 the kinetic energy at the impeller outlet is converted into static pressure. Different forms of impellers, diffusers, volutes and inlet casings are available to build radial, semi-axial or axial, single- or multistage, pumps mounted in horizontal or vertical position - as most suitable for the specific application.作者: 賞錢(qián) 時(shí)間: 2025-3-28 00:36
https://doi.org/10.1007/978-3-642-97813-5e and vibrations excited and components damaged through cavitation erosion under certain conditions. When using the term “cavitation” the “cavitating flow” - i.e. the occurrence of local zones with two-phase flow - and “cavitation erosion” or cavitation damage must be well distinguished.作者: SPER 時(shí)間: 2025-3-28 02:38 作者: thrombosis 時(shí)間: 2025-3-28 06:39 作者: 臭了生氣 時(shí)間: 2025-3-28 12:29
Suction Capability and Cavitation,e and vibrations excited and components damaged through cavitation erosion under certain conditions. When using the term “cavitation” the “cavitating flow” - i.e. the occurrence of local zones with two-phase flow - and “cavitation erosion” or cavitation damage must be well distinguished.作者: innate 時(shí)間: 2025-3-28 15:11 作者: entitle 時(shí)間: 2025-3-28 21:31
Operation of Centrifugal Pumps,w to the pump harbor also potential for trouble. Operation in various brake and turbine modes is discussed in Chap.?.. The effects of high viscosity, free gas or large amounts of solids on the performance curves are the topic of Chap.?..作者: glacial 時(shí)間: 2025-3-29 00:24 作者: 未成熟 時(shí)間: 2025-3-29 03:15 作者: Coronary-Spasm 時(shí)間: 2025-3-29 10:07
Book 2020Latest editionller reaction forces..- Alternating stresses and fatigue fractures of impellers..- a critical study on the accuracy of numerical flow calculations of pumps..- Design of inlet housings and double spirals formultistage pumps..作者: Accord 時(shí)間: 2025-3-29 12:21
Pump Types and Performance Data, the kinetic energy at the impeller outlet is converted into static pressure. Different forms of impellers, diffusers, volutes and inlet casings are available to build radial, semi-axial or axial, single- or multistage, pumps mounted in horizontal or vertical position - as most suitable for the specific application.作者: 偽證 時(shí)間: 2025-3-29 19:17
underlying physical mechanisms for practical applications.Co.This handbook summarizes the research results on hydraulic problems in centrifugal pump design and describes the state of the art in a comprehensive way. For this 4th edition, current research results of practical relevance were included. 作者: micronized 時(shí)間: 2025-3-29 21:00 作者: Immunization 時(shí)間: 2025-3-30 01:38 作者: cruise 時(shí)間: 2025-3-30 07:02
Fluid Dynamic Principles,phenomena which are of special interest and significance to the pump engineer. Basic knowledge of the terms of fluid dynamics is taken for granted. There is a wealth of textbooks and handbooks on fluid dynamics, only a few can be quoted: [.,.,., ., ., ., ., ., .].作者: eustachian-tube 時(shí)間: 2025-3-30 11:15 作者: FLAG 時(shí)間: 2025-3-30 16:21 作者: 中子 時(shí)間: 2025-3-30 17:36 作者: Sleep-Paralysis 時(shí)間: 2025-3-30 22:46 作者: Boycott 時(shí)間: 2025-3-31 03:38 作者: Decibel 時(shí)間: 2025-3-31 05:51 作者: PAD416 時(shí)間: 2025-3-31 12:54 作者: Bph773 時(shí)間: 2025-3-31 16:27 作者: Infraction 時(shí)間: 2025-3-31 21:24
Noise and Vibrations,w. The flow in the stator acts back on the velocity field in the impeller. The related phenomena are called “rotor/stator interaction” (RSI). As a consequence of the RSI, hydraulic excitation forces are generated. These give rise to pressure pulsations, mechanical vibrations and alternating stresses作者: 感染 時(shí)間: 2025-4-1 01:11
Operation of Centrifugal Pumps,ich ensure that the pump operates in the range between the allowable minimum and maximum flow - in particular if pumps are operated in parallel. Proper procedures must be implemented for start and stop. Transient operation and unsteady phenomena which need attention include: dynamic instabilities ca
