This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Increase of Compressor Performance through the Use of Microstructures
Technical Paper
2019-24-0239
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
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.
Recommended Content
| Technical Paper | Experimental and Numerical Investigations of the Base Wake on an SUV |
| Journal Article | General Motors’ New Reduced Scale Wind Tunnel Center |
Authors
Topic
Citation
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
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 |
Also In
References
- Cella , U. , Groth , C. , and Biancolini , M.E. 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 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 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 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. 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 ICAS, Congress, 15th London, England Sept. 7-12 1986 1044 1068 ICAS Fluid Mechanics and Heat Transfer
- Walsh , M. Riblets Viscous Drag Reduction in Boundary Layers 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 ICAS, Congress, 15th London, England Sept. 7-12 1986 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 AIAA Scitech 2019 Forum 10.2514/6.2019-1625
- ANSYS Inc. https://www.ansys.com/products/fluids/ansys-fluent
- ANSYS Inc. https://www.ansys.com/services/training-center/platform/introduction-to-ansys-icem-cfd