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Increase of Compressor Performance through the Use of Microstructures
Technical Paper
2019-24-0239
ISSN: 0148-7191,
e-ISSN: 2688-3627
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English
Abstract
Turbomachinery efficiency is becoming more and more relevant in order to reduce fuel consumption and mechanical wear of machines at the purpose of increasing their environmental sustainability and reliability. Optimized material identification and design is therefore of paramount importance. This paper describes how turbomachines can be optimized thanks to the effect of microstructures suitably created over the shapes of their constituting components in order to increase the overall efficiency via a simple coating solution. These structures, called riblets, consist of tiny streamwise grooved surfaces which are such to reduce drag in the turbulent boundary layer. Theoretical, numerical and experimental experiences gave a first estimation of the impact of riblets in industrial compressors. In this case, the riblet structures reduce the aerodynamic shear stress losses. The areas of higher interest are the diffuser and the volute, where the higher losses happen. The optimal size, position and effect on performance were analysed via simulation. The use of such an effective numerical means may give a precise evaluation about benefits in terms of efficiency increase as well as of CO2 and noise emission reduction and, for these reasons, it also has a positive economical and societal impact in relation to mobility and energy sector, considering the use of turbomachinery in avionics and power application. The presented activities were performed in the Framework of the ReSISTant project, which was co-financed by the European Union under the Grant Agreement n. 760941.
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Costa, E., Garcia de Albeniz, M., Barberis, S., and Leitl, P., "Increase of Compressor Performance through the Use of Microstructures," SAE Technical Paper 2019-24-0239, 2019, https://doi.org/10.4271/2019-24-0239.Data Sets - Support Documents
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References
- Cella, U., Groth, C., and Biancolini, M.E. , “Geometric Parameterization Strategies for Shape Optimization Using RBF Mesh Morphing,” Lecture Notes in Mechanical Engineering, 2017
- Papoutsis-Kiachagias, E.M., Porziani, S., Groth, C., Biancolini, M.E. et al. , “Aerodynamic Optimization of Car Shapes Using the Continuous Adjoint Method and an RBF Morpher,” Computational Methods in Applied Sciences, 2019.
- Kiyici, F., Yilmazturk, S., Arican, E., Çoban, K. et al. , “U-Turn Optimization of a Ribbed Turbine Blade Cooling Channel Using a Meshless Optimization Technique,” in AIAA SciTech Forum 2017, Gaylord Texan, Grapevine, TX, 2017
- Kiyici, F., Yilmazturk, S., Çoban, K., Arican, E. et al. , “Rib Cross Section Optimization of a Ribbed Turbine Internal Cooling Channel with Experimental Validation,” in Proceedings of ASME Turbo Expo 2017: Turbine Technical Conference and Exposition, Charlotte, NC, June 26-30, 2017.
- Biancolini, M.E., Costa, E., Cella, U., Groth, C. et al. , “Glider Fuselage-Wing Junction Optimization Using CFD and RBF Mesh Morphing,” Aircraft Engineering and Aerospace Technology, 2016.
- Brian, D. and Bhushan, B. , “Shark-Skin Surfaces for Fluid-Drag Reduction in Turbulent Flow: A Review,” Philos. Trans. R. Soc. A 368:4775-4806, 2010, doi:10.1098/rsta.2010.0201.
- Baron, A., Quadrio, M., and Vigevano, L. , “On the Boundary Layer/Riblets Interaction Mechanisms and the Prediction of Turbulent Drag Reduction,” Int. J. Heat Fluid Flow 14(4), Dec. 1993.
- Gallagher, J. and Thomas, A.S.W. , “Turbulent Boundary Layer Characteristics Over Streamwise Grooves,” AIAA Paper 84-2185, 1984.
- Choi, K.S. , “Near-Wall Structure of a Turbulent Boundary Layer with Riblets,” J. Fluid Mechanics 208:417-458, 1989.
- Hage W. , “ur Widerstandsverminderung von dreidimensionalen Riblet-Strukturen und anderen Oberflächen,” Dissertation, Mensch & Buch Verlag, 2004
- Spalart, P.R. and McLean, J.D. , “Drag Reduction: Enticing Turbulence, and Then an Industry,” Philosophical Transactions of the Royal Society A 369:1556-1569, 2011.
- Walsh, M. and Weinstein, L. , “Drag and Heat-Transfer Characteristics of Small Longitudinally Ribbed Surfaces,” AIAA Journal 17:770-771, 1979.
- Bechert, D.W., Bruse, M., Hage, W., van der, J.G.T. et al. , “Experiments on Drag-Reducing Surfaces and their Optimization with Adjustable Geometry,” J. Fluid Mech. 338:59-87, 1997.
- Bechert, D.W., Bartenwerfer, M., Hoppe, G., and Reif, W.-E. “Drag Reduction Mechanisms Derived from Shark Skin”, in ICAS, Congress, 15th, London, England, Sept. 7-12, 1986, Proceedings Vol. 2 (A86-48976 24-01). New York, American Institute of Aeronautics and Astronautics, 1044-1068, ICAS Fluid Mechanics and Heat Transfer.
- Walsh, M. , “Riblets,” in Viscous Drag Reduction in Boundary Layers, Vol. 123 of Progress in Astronautics and Aeronautics, Bushnell & Efner, 1990, 203-261.
- Luchini, P., Manzo, F., and Pozzi, A. , “Resistance of Grooved Surface to Parallel Flow and Cross-Flow,” Journal of Fluid Mechanics 228:87-109, 1991.
- Garcia-Mayoral, R. and Jimenez, J. , “Hydrodynamic Stability and Breakdown of the Viscous Regime over Riblets,” Journal of Fluid Mechanics 678:317-347, 2011.
- Bechert, D., Bartenwerfer, M., Hoppe, G., and Reif, W. , “Drag Reduction Mechanisms Derived from Shark Skin,” in ICAS, Congress, 15th, London, England, Sept. 7-12, 1986, Proceedings Vol. (A86-48976 24-01). New York, AIAA, Inc., 1986, 1044-1068
- Viswanath, P. , “Aircraft Viscous Drag Reduction Using Riblets,” Prog. Aerosp. Sci. 38:571-600, 2002.
- Nieuwstadt, F., Wolthers, W., Leijdens, H., Prasad, K. et al. , “The Reduction of Skin Friction by Riblets under the Influence of an Adverse Pressure Gradient,” Exp. Fluids 15:17-26, 1993.
- Leitl, P.A., Kuntzagk, S., Flanschger, A., and Pfingsten, K. , “Experimental and Numerical Investigation of the Reduction in Skin Friction Due to Riblets Applied on the Surface of a Taylor-Couette Cell,” in AIAA Scitech 2019 Forum, AIAA 2019-1625, doi:10.2514/6.2019-1625.
- ANSYS Inc. , “ANSYS Fluent Software,” https://www.ansys.com/products/fluids/ansys-fluent, accessed May 2019.
- ANSYS Inc. , “ANSYS ICEM CFD Software,” https://www.ansys.com/services/training-center/platform/introduction-to-ansys-icem-cfd, accessed May 2019.