Numerical and experimental modelling of the radial compressor stage

Syka, Tomáš; Matas, Richard; Luňáček, Ondřej

doi:10.1063/1.4953753

Cited by 13 publications

(2 citation statements)

References 8 publications

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“…The SST turbulence model and the ANSYS CFX program were used. Calculated and test data comparison demonstrated significant overestimation of the calculated pressure ratio and a shift of the calculated characteristics to the right, which is typical for a number of other comparisons of CFD calculations with experiments [7][8][9][10][11][12][13][14][15][16][17][18][19][20]. We can also observe unusually large overestimation of calculated efficiency.…”

Section: Introductionsupporting

confidence: 62%

Design, Plant Test and CFD Calculation of a Turbocharger for a Low-Speed Engine

et al. 2020

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Various approaches and techniques are used to design centrifugal compressors. These are engineering one-dimensional and quasi-three-dimensional programs, as well as CFD Computational Fluid Dynamics (CFD) programs. The final judgment about the effectiveness of the design is given by testing the compressor or its model. A centrifugal compressor for an internal combustion engine turbocharger was designed jointly by the Research Laboratory “Gas Dynamics of Turbomachines” of Peter the Great St. Petersburg Polytechnic University (SPbPU) and RPA (Research and Production Association) “Turbotekhnika”. To check its dimensionless characteristics, the compressor was tested with two geometrically similar impellers with a diameter of 175 (TKR 175E) and 140 mm (TKR 140E). The mathematical model of the Universal Modeling Method calculates the efficiency in the design mode for all tests of both compressors with an error of 0.89%, and the efficiency for the entire characteristic with an error of 1.55%. The characteristics of the TKR 140E compressor were calculated using the ANSYS commercial CFD software. For TKR-140E, a significant discrepancy in the value of the efficiency was obtained, but a good agreement in the area of operation, which was not achieved in previous calculations. According to the calculation, the work coefficient is overestimated by 9%, which corresponds to the results of previous calculations by the authors.

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Section: Introductionsupporting

confidence: 62%

Design, Plant Test and CFD Calculation of a Turbocharger for a Low-Speed Engine

et al. 2020

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“…The methodology of CFD simulations for the RTK stages and properties of the model has been evaluated and improved; see e.g. [3,4,5,6]. The air, modelled as perfect gas, was used as the flow medium, k-ω SST turbulence model was used for the described simulations.…”

Section: Cfd Software and Modelsmentioning

confidence: 99%

Numerical modelling and experimental investigation of the influence of selected geometric elements on the working characteristics of radial compressor stages with prismatic blades

et al. 2022

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The article deals with a description of basic results of research of radial compressor stages with 2D e.g. prismatic rotor blades. The experimental facility and the measurement and evaluation process are described briefly in the first part. The second part of this contribution is the numerical simulation and evaluation of the influence of the technological holes in the 2D rotor blades to compressor stage characteristics. The influence of the labyrinth seals clearance on the working characteristics can be found in the last part. The comparison of measured and computed values is presented and discussed.

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Numerical and experimental modelling of the centrifugal compressor stage – setting the model of impellers with 2D blades

2017

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Abstract. The article deals with a description of results from research and development of a radial compressor stage. The experimental compressor and used numerical models are briefly described. In the first part, the comparisons of characteristics obtained experimentally and by numerical simulations for stage with vaneless diffuser are described. In the second part, the results for stage with vanned diffuser are presented. The results are relevant for next studies in research and development process.

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Numerical and experimental modelling of the radial compressor stage

Cited by 13 publications

References 8 publications

Design, Plant Test and CFD Calculation of a Turbocharger for a Low-Speed Engine

Design, Plant Test and CFD Calculation of a Turbocharger for a Low-Speed Engine

Numerical modelling and experimental investigation of the influence of selected geometric elements on the working characteristics of radial compressor stages with prismatic blades

Numerical and experimental modelling of the centrifugal compressor stage – setting the model of impellers with 2D blades

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