The first steps of the turbomachinery design usually rely on numerical tools based on inviscid formulation with corrections using loss models to account for viscous effects, secondary flows, tip clearances, and shock waves. The viscous effects are accounted for using semi-empirical correlations especially assembled for the chosen airfoils and range of operating conditions. Fast convergence and good accuracy are required from such design procedures. There are successful models that produce very accurate performance prediction. Among the methodologies commonly used, the streamline curvature (SLC) is used since those characteristics and the most important properties can be calculated reasonably well at any radial positions, assisting other more complex analysis programs. The SLC technique is, therefore, well suited for the design of axial flow compressors for reasons such as quick access to vital flow properties at the blade edges from which actions may be taken to improve its performance at the design stage. This work reports the association of a SLC computer program and commercial software for comparison purposes, as well as for grid generation required by a full 3D, turbulent Navier–Stokes computer program used for flow calculation in the blade passages. Application to a high performance three-stage axial flow compressor with inlet guide vane demonstrates the methodology adopted. The SLC program is also capable of calculating the compressor performance with humid air and water injection at any axial position along the compressor. The influence of water injection at different axial positions, water particle diameter, and temperature of water particles were studied for different humid air conditions. The positions of the evaporating water particles were calculated using their thermophysical and dynamic properties along the compressor.
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July 2011
Research Papers
An Axial Flow Compressor for Operation With Humid Air and Water Injection
Jesuino Takachi Tomita,
Jesuino Takachi Tomita
Division of Mechanical-Aeronautical Engineering, Center for Reference on Gas Turbine and Energy,
e-mail: jtakachi@ita.br
Instituto Tecnológico de Aeronáutica (ITA)
, 12228-900 São José dos Campos, Sao Paulo, Brazil
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Luciano Porto Bontempo,
Luciano Porto Bontempo
Division of Mechanical-Aeronautical Engineering, Center for Reference on Gas Turbine and Energy,
e-mail: bontempo@ita.br
Instituto Tecnológico de Aeronáutica (ITA)
, 12228-900 São José dos Campos, Sao Paulo, Brazil
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João Roberto Barbosa
João Roberto Barbosa
Division of Mechanical-Aeronautical Engineering, Center for Reference on Gas Turbine and Energy,
e-mail: barbosa@ita.br
Instituto Tecnológico de Aeronáutica (ITA)
, 12228-900 São José dos Campos, Sao Paulo, Brazil
Search for other works by this author on:
Jesuino Takachi Tomita
Division of Mechanical-Aeronautical Engineering, Center for Reference on Gas Turbine and Energy,
Instituto Tecnológico de Aeronáutica (ITA)
, 12228-900 São José dos Campos, Sao Paulo, Brazile-mail: jtakachi@ita.br
Luciano Porto Bontempo
Division of Mechanical-Aeronautical Engineering, Center for Reference on Gas Turbine and Energy,
Instituto Tecnológico de Aeronáutica (ITA)
, 12228-900 São José dos Campos, Sao Paulo, Brazile-mail: bontempo@ita.br
João Roberto Barbosa
Division of Mechanical-Aeronautical Engineering, Center for Reference on Gas Turbine and Energy,
Instituto Tecnológico de Aeronáutica (ITA)
, 12228-900 São José dos Campos, Sao Paulo, Brazile-mail: barbosa@ita.br
J. Eng. Gas Turbines Power. Jul 2011, 133(7): 071703 (8 pages)
Published Online: March 17, 2011
Article history
Received:
April 25, 2010
Revised:
May 13, 2010
Online:
March 17, 2011
Published:
March 17, 2011
Citation
Tomita, J. T., Bontempo, L. P., and Barbosa, J. R. (March 17, 2011). "An Axial Flow Compressor for Operation With Humid Air and Water Injection." ASME. J. Eng. Gas Turbines Power. July 2011; 133(7): 071703. https://doi.org/10.1115/1.4002672
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