Inverse Design Method for Centrifugal Impellers and Comparison with Numerical Simulation Tools

Asuaje, Miguel; Bakir, Farid; Kouidri, S.; Rey, Robert

doi:10.1080/10618560310001634249

Cited by 38 publications

(19 citation statements)

References 5 publications

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“…In recent years, along with computer and numerical simulation development, many domestic and overseas experts and scholars in impeller internal turbulent flow of centrifugal pump has done a lot of work [ 1 · 3] , hydraulic machinery flow field has developed into the 3-d viscous unsteady stage [4][5][6][7][8] . but the study of cavitations damage nothing much.…”

Section: Yanhaomentioning

confidence: 99%

Notice of Retraction: Numberical simulation of low-specific-speed centrifugal pump cavitation influence of pressure pulsation under different conditions

Zhu

Yuan

et al. 2010

2010 International Conference on Computer Application and System Modeling (ICCASM 2010)

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According to the cavitation of centrifugal pump which produces in the condition of operating at off-design and inhale height exceeds the value of prescribed limit, the cavitation arouse pressure pulsation aggravate , so cause the performance of centrifugal pump that drops. Adopt RNG k -E simulated technology model to study the relation between the pressure pulsation and cavitation of centrifugal pump, the researched operating condition includes design and off-design operating condition, the design point of operating is specified QBET of rate of flow, the off-design points are 0.5 QBET, 0.8 QBET, 1.3 QBET and 1.5 QBET. As the result show , at different operating conditions , duration, location, periodicity and the size of bubble area are changed. At design operation condition the cavitation regional , cavitation duration , pressure pulsation amplitude is minimum; The more deviate the design condition, the cavitation duration grows the more, and in the high rate of flow the cavitation most serious. At low rate of flow of 0.5 QBET cavitation produce mainly in inlet of blade reverse side , pressure pulsation amplitude is the 1.8 times of design operating condition; At high orate of flow of 1.5QBET , cavitation produce mainly in Inlet of blade pressure side, pressure pulsation amplitude is the 2.6 times of design operating mode.

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Section: Yanhaomentioning

confidence: 99%

Notice of Retraction: Numberical simulation of low-specific-speed centrifugal pump cavitation influence of pressure pulsation under different conditions

Zhu

Yuan

et al. 2010

2010 International Conference on Computer Application and System Modeling (ICCASM 2010)

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“…where s is the rotor sliding distance as given in equation (1). The distance, h, may be calculated, from (21) and (22), as follows:…”

Section: Inverse Geometric Design For Displacement Machines 133mentioning

confidence: 99%

“…For example, [1] address the inverse design problem of the two-dimensional (2D) centrifugal and helico-centrifugal pumps using a two-stage technique. In the first instance, experimental data have been correlated and used to improve the performance of the modelling procedure.…”

Section: Introductionmentioning

confidence: 99%

Inverse geometric design for a class of rotary positive displacement machines

Sultan

2008

Inverse Problems in Science and Engineering

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Inverse design techniques in the area of fluid mechanics are normally conducted for continuous flow turbomachines rather than positive displacement devices. However, the work in this article is concerned with a class of rotary positive displacement device referred to as the limac¸on-to-limac¸on machine. The rotors and housings of these machines are manufactured of limac¸on profiles, and are likely to suffer from interference if the rotors are not carefully profiled. Published literature indicates that solutions proposed to tackle the interference problem in these machines will adversely affect their efficiency figures. This notion motivated the work presented in this article, which first introduces the relevant mathematical models of the limac¸on-to-limac¸on machine and then uses these models to construct an inverse geometric design problem formulation. The proposed model has been coded in a computer program that utilises a Marquardt-Levenberg technique to converge to the required geometric parameters. Case studies are presented at the end of the article to verify the validity of the proposed inverse design model.

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“…Nawrat and Skorek (2005) have applied the inverse analysis for studying the thermal properties in metal casting. Asuaje et al (2004) have studied an inverse problem dealing with the analysis of centrifugal impeller using quasi three-dimensional method. It is mentioned earlier that, for computational analysis of inverse problems, an optimisation algorithm in conjunction with a suitable forward method is required.…”

Section: Introductionmentioning

confidence: 99%

A simulated annealing-based inverse computational fluid dynamics model for unknown parameter estimation in fluid flow problem

Das

2012

International Journal of Computational Fluid Dynamics

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In this paper, a simulated annealing (SA)-based optimisation is carried out for simultaneous estimation of the Reynolds number (Re) and the dimensions of the enclosure (l x , l y ) from the knowledge of centreline velocity field. For demonstrating the retrieval methodology, the required centreline velocity field is first obtained from a forward method using some known values of the unknowns, which are ultimately estimated by the inverse method. SA is used to optimise the objective function represented by the square of the difference between the known field and an arbitrary guessed field (calculated using some guessed value of the unknowns). For studying the sensitivity of the estimated parameters, the effect of random errors has been investigated and the suitability of the SA has been checked for different initial guesses. The algorithm reported in the present work is useful in estimating the above unknowns (Re, l x , l y ) for a given velocity field.

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Inverse Design Method for Centrifugal Impellers and Comparison with Numerical Simulation Tools

Cited by 38 publications

References 5 publications

Notice of Retraction: Numberical simulation of low-specific-speed centrifugal pump cavitation influence of pressure pulsation under different conditions

Notice of Retraction: Numberical simulation of low-specific-speed centrifugal pump cavitation influence of pressure pulsation under different conditions

Inverse geometric design for a class of rotary positive displacement machines

A simulated annealing-based inverse computational fluid dynamics model for unknown parameter estimation in fluid flow problem

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