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[PDF] Top 20 Comparison of Flow Characteristics of Centrifugal Compressors by Numerical Modelling of Flow

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Comparison of Flow Characteristics of Centrifugal Compressors by Numerical Modelling of Flow

Comparison of Flow Characteristics of Centrifugal Compressors by Numerical Modelling of Flow

... outlet flow non-uniformity in which the low-velocity wake region is close to the suction surface and jet region near the pressure surface of the ...This flow pattern is called the “jet-wake” flow ... See full document

10

Numerical investigation of highly curved turbulent flows in centrifugal compressors and in a simplified geometry

Numerical investigation of highly curved turbulent flows in centrifugal compressors and in a simplified geometry

... the flow through a curved 90° rectangular ...vorticity characteristics associated with secondary flows that were captured by the non-linear variants of the ...duct flow and a study by Raisee et ... See full document

158

Design of Multi Stage Axial Flow Compressor and Validation using Numerical Simulations

Design of Multi Stage Axial Flow Compressor and Validation using Numerical Simulations

... steady flow of compressed gas and have the benefit of increased efficiency and higher volume flow rate, in terms of size and ...mass flow rates than centrifugal compressors and are ... See full document

6

Some aspects of numerical simulation of control valves for steam turbines

Some aspects of numerical simulation of control valves for steam turbines

... the numerical simulation of air and steam flow through the model of control valve for steam ...turbines. Numerical simulations were compared with experimental measurements for the award of the same ... See full document

12

Gain of a Control Valve with Polygonal Flow Characteristics

Gain of a Control Valve with Polygonal Flow Characteristics

... Measurement results are shown in Fig. 11. There is an evident difference between the measurements and the calculated results. The reason for this is because the slope of the measured-flow characteristics is ... See full document

12

CFD ANALYSIS OF THE DIFFERENT GEOMETRIC CONFIGURATIONS AT SUCTION SIDE OF CENTRIFUGAL PUMP

CFD ANALYSIS OF THE DIFFERENT GEOMETRIC CONFIGURATIONS AT SUCTION SIDE OF CENTRIFUGAL PUMP

... We briefly examine the function of each of these elements within the context of a CFD code. Before going for those processes we have to identify the problem; in that first includes define area means exactly for which ... See full document

7

CFD Simulation of Centrifugal Pump Impeller Using ANSYS-CFX

CFD Simulation of Centrifugal Pump Impeller Using ANSYS-CFX

... of centrifugal force acting on the ...to centrifugal action, it is called as centrifugal pump. Centrifugal pump has high output and high efficiency compared to other types of ...the ... See full document

9

Concepts And Modelling Of Groundwater System

Concepts And Modelling Of Groundwater System

... Groundwater can be found almost everywhere. The water table may be deep or shallow; and may rise or fall depending on many factors. Heavy rains or melting snow may cause the water table to rise, or an extended period of ... See full document

10

Flow Analysis Through the Centrifugal Impeller of a Vacuum Cleaner Unit

Flow Analysis Through the Centrifugal Impeller of a Vacuum Cleaner Unit

... experimental flow visualization with the use o f solid particles are presented in references [1] and [2], Experimental visualization o f flow through centrifugal impeller was described by Pedersen ... See full document

13

Detection of circulating microparticles by flow cytometry: influence of centrifugation, filtration of buffer, and freezing

Detection of circulating microparticles by flow cytometry: influence of centrifugation, filtration of buffer, and freezing

... Figure 2 Flow cytometric analysis of three centrifugation protocols. each cen- trifugation protocol consisted of two steps as described in Table 1. A) An initial centrifugation step at 1500 × g (P3) showed ... See full document

9

A Numerical Analysis of Fluid Flow and Heat Transfer Characteristics of ZnO-Ethylene Glycol Nanofluid in Rectangular Microchannels

A Numerical Analysis of Fluid Flow and Heat Transfer Characteristics of ZnO-Ethylene Glycol Nanofluid in Rectangular Microchannels

... The convective heat transfer coefficient increases with the increase in nanoparticle volume fraction of ZnO-EG nanofluid. The increments in the convective heat transfer coefficient for 4 % ZnO- EG nanofluid compared to ... See full document

11

Research and Analysis of the Hysteresis Characteristics of a Large Flow Directional Valve

Research and Analysis of the Hysteresis Characteristics of a Large Flow Directional Valve

... the flow field in the annular region differs strongly in the Y- and Y+ ...the flow path is smooth, which can be seen in the enlargement ...the flow angle, so only a small amount of liquid flows into ... See full document

10

Design Modification and Finite Element Analysis of Centrifugal Fan

Design Modification and Finite Element Analysis of Centrifugal Fan

... A centrifugal fan is a mechanical apparatus to move air or gases. The expressions “squirrel cage fan” & "blower" (since it would seem like a hamster wheel), are much of the time utilized as equivalent ... See full document

6

Numerical and experimental modelling of unsteady flow in rockfill embankments.

Numerical and experimental modelling of unsteady flow in rockfill embankments.

... Several mathematical models have been developed to simulate flow in porous media. In particular, the prob l e m of w a v e interaction w i t h a porous embankment has received considerable attention. However, the ... See full document

293

Experimental and Numerical Investigation on the Flow Characteristics around a Cross Flow Wind Turbine

Experimental and Numerical Investigation on the Flow Characteristics around a Cross Flow Wind Turbine

... where φ is the time average of a flow variable φ , φ′ is φ φ − , φ′′′ is φ φ ′ − ′′ , and k is the TKE of the SST k-ω turbulence model. Figure 9 confirms that the profiles of the WTE and CFD results match ... See full document

10

Lumped Parameter Modelling of Cavitating Orifice Flow in Hydraulic Systems

Lumped Parameter Modelling of Cavitating Orifice Flow in Hydraulic Systems

... cavitating flow have been proposed on the basis of the computational fluid dynamic (CFD) ...advanced numerical models for positive displacement machines [12] and [13] have been developed under this ... See full document

8

Fabrication and Analysis of Counter Flow Helical Coil Heat Exchanger

Fabrication and Analysis of Counter Flow Helical Coil Heat Exchanger

... exchanger, centrifugal pump, storage tank, and ...the flow rate of coolant water and hot water, ...the flow rate of the cold stream/hot stream a rotameter is installed upstream of the heat ... See full document

12

Modelling of Flow Boiling Process in Small Diameter Tubes

Modelling of Flow Boiling Process in Small Diameter Tubes

... According to the theory of similarity the presented correlation can also be applied to new refrigerants as far as the investigated range of the similarity numbers is concerned. The use of correlation is very simple on ... See full document

6

Design and Optimization of Axial Flow Compressor

Design and Optimization of Axial Flow Compressor

... All compressors have an optimum point relating rotational speed and pressure, with higher compressions requiring higher speeds. Early engines were designed for simplicity, and used a single large compressor ... See full document

21

A numerical and experimental analysis of flow in a centrifugal pump

A numerical and experimental analysis of flow in a centrifugal pump

... CFD has proved to be a very useful tool in the analysis of such turbomachinery, both in design and performance prediction. Much research has been carried out in this field. Croba & Kueny, (1996) give a list of ... See full document

6

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