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Cordier - CFturbo

2023年9月1日  The Cordier diagram is based on an intensive empirical analysis of proved turbomachinery using extensive experimental data. At the top right you can switch

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Improvement and extension of Cordier diagram for hydraulic

2022年5月3日  The Cordier diagram for hydraulic turbines has been accurately improved and extended. The first part of this work completes the Cordier diagram by adding the

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A theoretical derivation of the Cordier diagram for

2010年7月19日  The Cordier diagram is an empirical diagram based on measurements. It delivers a relation between flowrate, pressure, rotating speed, and diameter. However,

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IOP Conference Series: Materials Science and

2022年8月17日  1. Machine conception supported by empirical data During the process of designing fluid machines empirical data gives the first hints for the selection of the

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Impeller > Main dimensions > Cordier - CFturbo

2023年9月1日  Cordier. The Cordier diagram is based on an intensive empirical analysis of proved turbomachinery using extensive experimental data. At the top right you can switch between different coordinate axes:

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Specific Speed (Chapter 9) - Radial Flow Turbocompressors

2021年7月8日  The specific speed alone is often used to specify a particular type of design of radial compressor as, broadly speaking, an optimum specific speed can be defined,

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Proceedings of the Institution of Mechanical Engineers,

2013年9月3日  The Cordier diagram is an empirical diagram based on measurements. It delivers a relation between flowrate, pressure, rotating speed, and diameter. However,

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A theoretical derivation of the Cordier diagram for

The Cordier diagram is an empirical diagram based on measurements. It delivers a relation between flowrate, pressure, rotating speed, and diameter. However, the Cordier diagram

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Extended Cordier diagram by Grabow [4].

Download scientific diagram Extended Cordier diagram by Grabow [4]. from publication: Implementation of scroll compressors into the Cordier diagram Selecting the most suitable machine type for ...

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Hydraulic design - ScienceDirect

2018年1月1日  Selecting Pump Type and Cordier Diagram. When designing a blood pump for a specific operating point with defined speed, size, pressure, or flow requirements, the

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Specific Speed (Chapter 9) - Radial Flow Turbocompressors

2021年7月8日  The specific speed alone is often used to specify a particular type of design of radial compressor as, broadly speaking, an optimum specific speed can be defined, rather like an optimum flow coefficient. This optimum is often presented in the form of a Cordier diagram. Both parameters are essentially incompressible in nature and are often used ...

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Cordier diagram - Second Wiki

2023年10月20日  The Cordier diagram is a diagram from the field of flow machines such as turbines, pumps, and compressors. It was named after Otto Cordier , who presented it in 1953. [1] It shows the relationship between the running number σ (or the specific speed ) and the diameter number δ (or the specific diameter ) of single-stage turbo machines with ...

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Impeller > Main dimensions > Balje - CFturbo

2023年9月1日  The Balje diagram is displayed in the Main dimensions. If Energy transmission = total pressure ratio πtt, see Global setup, the diagram is only for information and diagram parameters can be defined on top of

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Proceedings of the Institution of Mechanical Engineers,

2013年9月3日  In order to determine its main dimensions, fan designers use the Cordier diagram. For a given operating point (i.e. flowrate and pressure, and a rotating speed), the optimum diameter of high-efficiency fans can be found in the Cordier diagram.The Cordier diagram is an empirical diagram based on measurements.

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Improvement and extension of Cordier diagram for hydraulic

2022年5月3日  The Cordier diagram for hydraulic turbines has been accurately improved and extended. The first part of this work completes the Cordier diagram by adding the effect of the number of injector nozzles in Pelton turbines. The Cordier lines (or bands) for Francis and Kaplan turbines have been recalculated based on the use of most available ...

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A theoretical derivation of the Cordier diagram for

2010年7月19日  In order to determine its main dimensions, fan designers use the Cordier diagram. For a given operating point (i.e. flowrate and pressure, and a rotating speed), the optimum diameter of high-efficiency fans can be found in the Cordier diagram. The Cordier diagram is an empirical diagram based on measurements. It delivers a relation between ...

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Implementation of scroll compressors into the Cordier diagram

2019年8月1日  Therefore, this paper shows a method for determining the characteristic key figures for different given scroll geometries. Based on this, it is shown how to implement scroll compressors into the Cordier diagram, i.e. different designs are analysed and the resulting data points are introduced to the diagram. Export citation and abstract BibTeX RIS.

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Improvement and extension of Cordier diagram for hydraulic

2022年5月3日  The Cordier diagram for the diameter number can be replaced by the new diagram for the turbine shape factors. Exclusively for Francis turbines, the impeller shape factor also combines the blade profile (angle) at the impeller inlet with design parameters.

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(PDF) Implementation of scroll compressors into the Cordier diagram

2019年9月3日  Based on this, it is shown how to implement scroll compressors into the Cordier diagram, i.e. different designs are analysed and the resulting data points are introduced to the diagram ...

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Impeller > Main dimensions > Cordier - CFturbo

2023年9月1日  The Cordier diagram is based on an intensive empirical analysis of proved turbomachinery using extensive experimental data.. At the top right you can switch between different coordinate axes: • relative: Specific diameter δ vs. Specific speed σ (or nq or Ns); original Cordier diagram • absolute: Impeller/Rotor diameter d vs. Rotational speed n;

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A theoretical derivation of the Cordier diagram for

In order to obtain the expression for diagram and it will be shown that the location of axial a whole axial impeller, equation (57) has to be inte- fans in the Cordier diagram is at high speed num- grated for all radii between hub and tip, taking the area bers and low diameter numbers and that the location average (see Fig. 12) of radial fans ...

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Optimization of Centrifugal Pump Characteristic Dimensions

2021年5月25日  The nondimensional data points are plotted on a Cordier diagram. From these data, a pump designer can make a first estimate at the size, speed, and performance of a blood pump. The study is a pioneering work, based on reliable experimental data, but for a broad range of pump types and not concentrated on one type of pump. ...

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Improvement and extension of Cordier diagram for hydraulic

2022年5月3日  The Cordier diagram for hydraulic turbines has been accurately improved and extended. The first part of this work completes the Cordier diagram by adding the effect of the number of injector nozzles in Pelton turbines. The Cordier lines (or bands) for Francis and Kaplan turbines have been recalculated based on the use of most available ...

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GOAL-ORIENTED ACTIVE LEARNING WITH LOCAL

2017年11月1日  usually identified by the Cordier diagram. While the design points obtained in the passive learning phase fairly agree with the standard Cordier diagram, an extension of achievable design points was observed due to the proposed goal-oriented learning strategy. In addition, the total-to-static efficiency

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Improvement and extension of Cordier diagram for hydraulic

2022年5月3日  The Cordier diagram for the diameter number can be replaced by the new diagram for the turbine shape factors. Exclusively for Francis turbines, the impeller shape factor also combines the blade profile (angle) at the impeller inlet with design parameters.

Read More
Cordier diagram: a) specific speed Ω Vs specific diameter Δ

The Cordier diagram reported by Darmstadt (Germany), 18 -20 April 2018 Dixon and Hall [8] is depicted in Fig. 1a. As explained by Epple et al. [9], from a practical point of view, the Cordier ...

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The Manual Design of an Axial Fan - blog.adtechnology

2023年8月15日  Figure 1: Cordier diagram for axial, diagonal and radial fans We can identify the main flow phenomena and loss mechanisms dominant in that particular range from the required speed number. For example, tip leakage, profile losses and flow separation usually take priority when it comes to axial fans which is the topic of this study.

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Improvement and extension of Cordier diagram for

2022年5月3日  The Cordier diagram for hydraulic turbines has been accurately improved and extended. The first part of this work completes the Cordier diagram by adding the effect of the number of injector ...

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Ermittlung der hauptabmessungen für Seitenkanalmaschinen

Correlations for the design of side channel machines as pump and compressor are presented, wish allow the calculation of the geometry of the fluid leading components. Sample calculations demonstrate the use of those correlations as well as comparative considerations regarding radial turbo engines. The considerations are based on the use

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The extended 'Cordier'-diagram for fluid energy machines

1993年3月1日  @misc{etde_6888000, title = {The extended 'Cordier'-diagram for fluid energy machines and internal combustion engines. Das erweiterte 'Cordier'-Diagramm fuer Fluidenergiemaschinen und Verbrennungsmotoren} author = {Grabow, G H} abstractNote = {On the basis of the similarity criteria used for flow machines, the well-known 'Cordier'

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