Numerical simulation of airfoil aerodynamic performance under the coupling effects of heavy rain and ice accretion
It has been widely investigated before that both heavy rain and icing conditions can cause severe aerodynamic performance penalties to aircraft in flight; however, aircraft aerodynamics in the presence of both heavy rain and ice accretion has been little explored so far. In this article, a numerical...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2016-10-01
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| Series: | Advances in Mechanical Engineering |
| Online Access: | https://doi.org/10.1177/1687814016667162 |
| _version_ | 1818162834484232192 |
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| author | Zhenlong Wu Yihua Cao |
| author_facet | Zhenlong Wu Yihua Cao |
| author_sort | Zhenlong Wu |
| collection | DOAJ |
| description | It has been widely investigated before that both heavy rain and icing conditions can cause severe aerodynamic performance penalties to aircraft in flight; however, aircraft aerodynamics in the presence of both heavy rain and ice accretion has been little explored so far. In this article, a numerical simulation is performed to study the aerodynamic performance of an iced NACA 0012 airfoil in simulated heavy rain condition. A two-way momentum-coupled Eulerian–Lagrangian two-phase flow approach is developed to simulate raindrop trajectories in the airflow field. The analysis indicates that both rain and ice can separately cause severe aerodynamic performance degradation to the airfoil at most angles of attack of interest. In the presence of both ice and rain, a further severe aerodynamic penalty can be produced by rain based on the ice-induced aerodynamic performance degradation. Premature boundary-layer separation and boundary-layer momentum losses by splashed-back raindrops are also observed. |
| first_indexed | 2024-12-11T16:39:58Z |
| format | Article |
| id | doaj.art-4c25c0cfa7304a4f99a44b5e26e64ee4 |
| institution | Directory Open Access Journal |
| issn | 1687-8140 |
| language | English |
| last_indexed | 2024-12-11T16:39:58Z |
| publishDate | 2016-10-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Advances in Mechanical Engineering |
| spelling | doaj.art-4c25c0cfa7304a4f99a44b5e26e64ee42022-12-22T00:58:20ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402016-10-01810.1177/1687814016667162Numerical simulation of airfoil aerodynamic performance under the coupling effects of heavy rain and ice accretionZhenlong Wu0Yihua Cao1School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing, ChinaSchool of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing, ChinaIt has been widely investigated before that both heavy rain and icing conditions can cause severe aerodynamic performance penalties to aircraft in flight; however, aircraft aerodynamics in the presence of both heavy rain and ice accretion has been little explored so far. In this article, a numerical simulation is performed to study the aerodynamic performance of an iced NACA 0012 airfoil in simulated heavy rain condition. A two-way momentum-coupled Eulerian–Lagrangian two-phase flow approach is developed to simulate raindrop trajectories in the airflow field. The analysis indicates that both rain and ice can separately cause severe aerodynamic performance degradation to the airfoil at most angles of attack of interest. In the presence of both ice and rain, a further severe aerodynamic penalty can be produced by rain based on the ice-induced aerodynamic performance degradation. Premature boundary-layer separation and boundary-layer momentum losses by splashed-back raindrops are also observed.https://doi.org/10.1177/1687814016667162 |
| spellingShingle | Zhenlong Wu Yihua Cao Numerical simulation of airfoil aerodynamic performance under the coupling effects of heavy rain and ice accretion Advances in Mechanical Engineering |
| title | Numerical simulation of airfoil aerodynamic performance under the coupling effects of heavy rain and ice accretion |
| title_full | Numerical simulation of airfoil aerodynamic performance under the coupling effects of heavy rain and ice accretion |
| title_fullStr | Numerical simulation of airfoil aerodynamic performance under the coupling effects of heavy rain and ice accretion |
| title_full_unstemmed | Numerical simulation of airfoil aerodynamic performance under the coupling effects of heavy rain and ice accretion |
| title_short | Numerical simulation of airfoil aerodynamic performance under the coupling effects of heavy rain and ice accretion |
| title_sort | numerical simulation of airfoil aerodynamic performance under the coupling effects of heavy rain and ice accretion |
| url | https://doi.org/10.1177/1687814016667162 |
| work_keys_str_mv | AT zhenlongwu numericalsimulationofairfoilaerodynamicperformanceunderthecouplingeffectsofheavyrainandiceaccretion AT yihuacao numericalsimulationofairfoilaerodynamicperformanceunderthecouplingeffectsofheavyrainandiceaccretion |