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Numerical Demonstration of the Humidity Effect in Engine Icing
ISSN: 0148-7191, e-ISSN: 2688-3627
Published June 10, 2019 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
The importance of the variation of relative humidity across turbomachinery engine components for in-flight icing is shown by numerical analysis. A species transport equation for vapor has been added to the existing CFD methodology for the simulation of ice growth and water flow on engine components that are subject to ice crystal icing. This entire system couples several partial differential equations that consider heat and mass transfer between droplets, crystals and air, adding the cooling of the air due to particle evaporation to the icing simulation, increasing the accuracy of the evaporative heat fluxes on wetted walls. Three validation cases are presented for the new methodology: the first one compares with the numerical results of droplets traveling inside an icing tunnel with an existing evaporation model proposed by the National Research Council of Canada (NRC). The second one compares humidity and the reduction in the outflow total temperature to the experimental data from NASA Glenn Research Center’s Propulsion Systems Laboratory (PSL). The third case shows that the vapor model improves our icing validation of the crowned cylinder case compared to the NRC experimental data. For the simulation technology demonstration, turbofan icing scenarios with inflow relative humidity varying between 30 and 100% are simulated using a generic engine intake that includes the first stages of the compressor. The inclusion of vapor transport and local relative humidity provide important additional modeling functionalities and increased simulation accuracy.
|Technical Paper||Simulation of Ice Particle Melting in the NRCC RATFac Mixed-Phase Icing Tunnel|
|Technical Paper||Low-Temperature Starting Experiments with a Mazda Rotary Engine|
|Aerospace Standard||Aircraft Deicing Vehicle - Self-Propelled|
CitationZhang, Y., Ozcer, I., Nilamdeen, S., Baruzzi, G. et al., "Numerical Demonstration of the Humidity Effect in Engine Icing," SAE Technical Paper 2019-01-2015, 2019, https://doi.org/10.4271/2019-01-2015.
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- Mason, J., Strap, J., and Chow, P. , “The Ice Particle Threat to Engines in Flight,” in 44th AIAA Aerospace Sciences Meeting and Exhibit 2006, USA, Jan. 9-12, doi:10.2514/6.2006-206.
- Struck, P., Currie, T., Wright, W.B., Knezevici, D.C. et al. , “Fundamental Ice Crystal Accretion Physics Studies,” SAE Technical Paper 2011-38-0018, 2001, doi:10.4271/2011-38-0018.
- Currie, T., Struk, P., Tsao, J., Fuleki, D., and Knezevici, D. , “Fundamental Study of Mixed-Phase Icing with Application to Ice Crystal Accretion in Aircraft Jet Engines,” in 4th AIAA Atmospheric and Space Environments Conference 2012, USA, June 25-28, doi:10.2514/6.2012-3035.
- Struk, P., Bartkus, T., and Fuleki, D. , “Ice Crystal Icing Physics Study Using a NACA 0012 Airfoil at the National Research Council of Canada’s Research Altitude Test Facility,” in 2018 AIAA Atmospheric and Space Environments Conference, USA, June 25-29, doi:10.2514/6.2018-4224.
- Davison, C.R., MaCleod, J.D., and Chalmers, J.L. , “Droplet Evaporation Model for Determining Liquid Water Content in Engine Icing Tunnels and Examination of the Factors Affecting Liquid Water Content,” in 9th AIAA Atmospheric and Space Environments Conference 2017, USA, June 5-9, doi:10.2514/6.2017-4246.
- Bartkus, T., Struk, P., and Tsao, J. , “Development of a Coupled Air and Particle Thermal Model for Engine Icing Test Facilities,” SAE Int. J. Aerosp 8(1):15-32, 2015, doi:10.4271/2015-01-2155.
- Bartkus, T., Struk, P., Tsao, J., and Van Zante, J. , “Numerical Analysis of Mixed-Phase Icing Cloud Simulations in the NASA Propulsion Systems Laboratory,” in 8th AIAA Atmospheric and Space Environments Conference 2016, USA, June 13-17, doi:10.2514/6.2016-3739.
- Montgomery, R.B. , “Viscosity and Thermal Conductivity of Air and Diffusivity of Water Vapor in Air,” Journal of Meteorology 4:193-196, 1947, doi:10.1175/1520-0469(1947)004%3C0193:VATCOA%3E2.0.CO;2.
- Crowe, C., Sommerfeld, M., and Tsuji, Y. , Multiphase Flows with Droplets and Particles (Boca Raton: CRC Press, 1998), 101-103. ISBN:0-8493-9469-4.
- Nilamdeen, M.S. , “An Uncoupled Multiphase Approach towards Modeling Ice Crystals in Jet Engines,” Master thesis, McGill University, 2010.
- Bourgault, Y., Beaugendre, H., and Habashi, W.G. , “Development of a Shallow-Water Icing Model in FENSAP-ICE,” Journal of Aircraft 37(4):640-646, 2000, doi:10.2514/2.2646.
- Messinger, B.L. , “Equilibrium Temperature of an Unheated Icing Surface as a Function of Air Speed,” Journal of the Aeronautical Sciences 20(1):29-42, 1953, doi:10.2514/8.2520.
- Ozcer, I., Switchenko, D., Chen, J., and Baruzzi, G.S. , “Multi-Shot Icing Simulations with Automatic Re-Meshing” SAE International Conference on Icing of Aircraft, Engines, and Structures 2019, 2019-01-1956.
- Pueyo, A., Ozcer, I., and Baruzzi, G.S. , “An Eulerian Approach with Mesh Adaptation for High Accurate 3D Droplets Dynamics Simulations,” SAE International Conference on Icing of Aircraft, Engines, and Structures, 2019, 2019-01-2012.
- Struk, P., Tsao, J., and Bartkus, T. , “Plans and Preliminary Results of Fundamental Studies of Ice Crystal Icing Physics in the NASA Propulsion Systems Laboratory,” in 8th AIAA Atmospheric and Space Environments Conference 2016, USA, June 13-17, doi:10.2514/6.2016-3738.
- Currie, T., Fuleki, D., and Mahallati, A. , “Experimental Studies of Mixed-Phase Sticking Efficiency for Ice Crystal Accretion in Jet Engines,” in 6th AIAA Atmospheric and Space Environments Conference 2014, USA, June 16-20, doi:10.2514/6.2014-3049.
- Nilamdeen, S., Rao, V., Switchenko, D., and Selvanayagam, J. , “Numerical Simulation of Ice Crystal Accretion Inside an Engine Core Stator,” SAE International Conference on Icing of Aircraft, Engines, and Structures, 2019. 2019-01-2017.
- Vargas, M., Struk, P.M., Kreeger, R.E., Palacios, J. et al. , “Ice Particle Impacts on a Moving Wedge,” in 6th AIAA Atmospheric and Space Environments Conference 2014, USA, June 16-20, AIAA-2014-3045, doi:10.2514/6.2014-3045.
- Hauk, T., Roisman, I.V., and Tropea, C.D. , “Investigation of the Impact Behaviour of Ice Particles,” in 6th AIAA Atmospheric and Space Environments Conference 2014, USA, June 16-20, AIAA-2014-3046, doi:10.2514/6.2014-3046.
- Hauk, T., Bonaccurso, E., Roisman, I.V., and Tropea, C. , “Ice Crystal Impact onto a Dry Solid Wall. Particle Fragmentation,” Proceedings of the Royal Society of London A: Mathematical, Physical and Engineering Sciences 471(2181), 2015, doi:10.1098/rspa.2015.0399.
- Nilamdeen, S., Zhang, Y., Ozcer, I., and Baruzzi, G.S. “An Ice Shedding Model for Rotating Components,” SAE International Conference on Icing of Aircraft, Engines, and Structures, 2019, 2019-01-2003.