A numerical model was included in a three-dimensional viscous solver to account for real gas effects in the compressible Reynolds averaged Navier-Stokes (RANS) equations. The behavior of real gases is reproduced by using gas property tables. The method consists of a local fitting of gas data to provide the thermodynamic property required by the solver in each solution step. This approach presents several characteristics which make it attractive as a design tool for industrial applications. First of all, the implementation of the method in the solver is simple and straightforward, since it does not require relevant changes in the solver structure. Moreover, it is based on a low-computational-cost algorithm, which prevents a considerable increase in the overall computational time. Finally, the approach is completely general, since it allows one to handle any type of gas, gas mixture or steam over a wide operative range. In this work a detailed description of the model is provided. In addition, some examples are presented in which the model is applied to the thermo-fluid-dynamic analysis of industrial turbomachines.
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e-mail: Paolo.Boncinelli@icad.de.unifi.it
e-mail: Carlo.Cortese@np.ge.com
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April 2004
Technical Papers
Real Gas Effects in Turbomachinery Flows: A Computational Fluid Dynamics Model for Fast Computations
Paolo Boncinelli,
e-mail: Paolo.Boncinelli@icad.de.unifi.it
Paolo Boncinelli
“Sergio Stecco” Department of Energy Engineering, University of Florence, Via S. Marta, 3, Florence 50139, Italy
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Filippo Rubechini,
Filippo Rubechini
“Sergio Stecco” Department of Energy Engineering, University of Florence, Via S. Marta, 3, Florence 50139, Italy
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Andrea Arnone,
Andrea Arnone
“Sergio Stecco” Department of Energy Engineering, University of Florence, Via S. Marta, 3, Florence 50139, Italy
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Massimiliano Cecconi,
Massimiliano Cecconi
GE Oil & Gas Nuovo Pignone, Via Felice Matteucci, 2, Florence 50127, Italy
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Carlo Cortese
e-mail: Carlo.Cortese@np.ge.com
Carlo Cortese
GE Oil & Gas Nuovo Pignone, Via Felice Matteucci, 2, Florence 50127, Italy
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Paolo Boncinelli
“Sergio Stecco” Department of Energy Engineering, University of Florence, Via S. Marta, 3, Florence 50139, Italy
e-mail: Paolo.Boncinelli@icad.de.unifi.it
Filippo Rubechini
“Sergio Stecco” Department of Energy Engineering, University of Florence, Via S. Marta, 3, Florence 50139, Italy
Andrea Arnone
“Sergio Stecco” Department of Energy Engineering, University of Florence, Via S. Marta, 3, Florence 50139, Italy
Massimiliano Cecconi
GE Oil & Gas Nuovo Pignone, Via Felice Matteucci, 2, Florence 50127, Italy
Carlo Cortese
GE Oil & Gas Nuovo Pignone, Via Felice Matteucci, 2, Florence 50127, Italy
e-mail: Carlo.Cortese@np.ge.com
Contributed by the International Gas Turbine Institute and presented at the International Gas Turbine and Aeroengine Congress and Exhibition, Atlanta, GA, June 16–19, 2003. Manuscript received by the IGTI Dec. 2002; final revision Mar. 2003. Paper No. 2003-GT-38101. Review Chair: H. R. Simmons.
J. Turbomach. Apr 2004, 126(2): 268-276 (9 pages)
Published Online: June 15, 2004
Article history
Received:
December 1, 2002
Revised:
March 1, 2003
Online:
June 15, 2004
Citation
Boncinelli, P., Rubechini , F., Arnone, A., Cecconi , M., and Cortese, C. (June 15, 2004). "Real Gas Effects in Turbomachinery Flows: A Computational Fluid Dynamics Model for Fast Computations ." ASME. J. Turbomach. April 2004; 126(2): 268–276. https://doi.org/10.1115/1.1738121
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