Numerical simulation of icing characteristics and aerodynamic performance degradation of airfoils under different incoming flow conditions
Objective This paper aims to study the effects of the freezing phenomenon of supercooled water droplets in intake air on the aerodynamic performance of a marine power intake system under cold marine environment conditions. MethodsFirst, an NACA 0012 airfoil is taken as the research object, its aerod...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Editorial Office of Chinese Journal of Ship Research
2023-02-01
|
| Series: | Zhongguo Jianchuan Yanjiu |
| Subjects: | |
| Online Access: | http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.02495 |
| _version_ | 1797871305792421888 |
|---|---|
| author | Lei PENG Junhao ZHU Meng WANG Zhongyi WANG |
| author_facet | Lei PENG Junhao ZHU Meng WANG Zhongyi WANG |
| author_sort | Lei PENG |
| collection | DOAJ |
| description | Objective This paper aims to study the effects of the freezing phenomenon of supercooled water droplets in intake air on the aerodynamic performance of a marine power intake system under cold marine environment conditions. MethodsFirst, an NACA 0012 airfoil is taken as the research object, its aerodynamic performance is numerically simulated and the validation of the established model and numerical simulation method are verified through comparison with the experimental results. Commercial software Fluent is then further developed using the user-defined function (UDF), the numerical simulation of the impingement characteristics of supercooled water droplets is carried out based on the Lagrange method, and the water collection coefficients corresponding to various inflow conditions are obtained. Finally, combined with dynamic mesh technology and the user-defined function, the icing characteristics of the airfoil and its aerodynamic performance degradation characteristics after icing are numerically studied. ResultsThe results show that the intake flow angle and diameter of water droplets have a significant influence on the impingement range of the droplets and the water collection coefficient, while incoming velocity has little effect on the impingement range of the droplets, but a certain influence on the water collection coefficient. In addition, under the condition of zero degree angle of attack, the ice accretion on the leading edge of the airfoil has little effect on its aerodynamic performance. Conversely, under the condition of five degrees angle of attack, the icing of the leading edge has a serious impact on its aerodynamic performance. ConclusionThe results of this study can provide valuable references for the prediction and analysis of icing in marine power intake systems and subsequent anti-icing work. |
| first_indexed | 2024-04-10T00:41:50Z |
| format | Article |
| id | doaj.art-7162950139a94a309d62c5d5364ac005 |
| institution | Directory Open Access Journal |
| issn | 1673-3185 |
| language | English |
| last_indexed | 2024-04-10T00:41:50Z |
| publishDate | 2023-02-01 |
| publisher | Editorial Office of Chinese Journal of Ship Research |
| record_format | Article |
| series | Zhongguo Jianchuan Yanjiu |
| spelling | doaj.art-7162950139a94a309d62c5d5364ac0052023-03-14T05:44:46ZengEditorial Office of Chinese Journal of Ship ResearchZhongguo Jianchuan Yanjiu1673-31852023-02-0118118919810.19693/j.issn.1673-3185.02495ZG2495Numerical simulation of icing characteristics and aerodynamic performance degradation of airfoils under different incoming flow conditionsLei PENG0Junhao ZHU1Meng WANG2Zhongyi WANG3Marine Design and Research Institute of China, Shanghai 200011, ChinaCollege of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, ChinaObjective This paper aims to study the effects of the freezing phenomenon of supercooled water droplets in intake air on the aerodynamic performance of a marine power intake system under cold marine environment conditions. MethodsFirst, an NACA 0012 airfoil is taken as the research object, its aerodynamic performance is numerically simulated and the validation of the established model and numerical simulation method are verified through comparison with the experimental results. Commercial software Fluent is then further developed using the user-defined function (UDF), the numerical simulation of the impingement characteristics of supercooled water droplets is carried out based on the Lagrange method, and the water collection coefficients corresponding to various inflow conditions are obtained. Finally, combined with dynamic mesh technology and the user-defined function, the icing characteristics of the airfoil and its aerodynamic performance degradation characteristics after icing are numerically studied. ResultsThe results show that the intake flow angle and diameter of water droplets have a significant influence on the impingement range of the droplets and the water collection coefficient, while incoming velocity has little effect on the impingement range of the droplets, but a certain influence on the water collection coefficient. In addition, under the condition of zero degree angle of attack, the ice accretion on the leading edge of the airfoil has little effect on its aerodynamic performance. Conversely, under the condition of five degrees angle of attack, the icing of the leading edge has a serious impact on its aerodynamic performance. ConclusionThe results of this study can provide valuable references for the prediction and analysis of icing in marine power intake systems and subsequent anti-icing work.http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.02495airfoilicing characteristicsaerodynamic performanceattack anglewater collection coefficient |
| spellingShingle | Lei PENG Junhao ZHU Meng WANG Zhongyi WANG Numerical simulation of icing characteristics and aerodynamic performance degradation of airfoils under different incoming flow conditions Zhongguo Jianchuan Yanjiu airfoil icing characteristics aerodynamic performance attack angle water collection coefficient |
| title | Numerical simulation of icing characteristics and aerodynamic performance degradation of airfoils under different incoming flow conditions |
| title_full | Numerical simulation of icing characteristics and aerodynamic performance degradation of airfoils under different incoming flow conditions |
| title_fullStr | Numerical simulation of icing characteristics and aerodynamic performance degradation of airfoils under different incoming flow conditions |
| title_full_unstemmed | Numerical simulation of icing characteristics and aerodynamic performance degradation of airfoils under different incoming flow conditions |
| title_short | Numerical simulation of icing characteristics and aerodynamic performance degradation of airfoils under different incoming flow conditions |
| title_sort | numerical simulation of icing characteristics and aerodynamic performance degradation of airfoils under different incoming flow conditions |
| topic | airfoil icing characteristics aerodynamic performance attack angle water collection coefficient |
| url | http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.02495 |
| work_keys_str_mv | AT leipeng numericalsimulationoficingcharacteristicsandaerodynamicperformancedegradationofairfoilsunderdifferentincomingflowconditions AT junhaozhu numericalsimulationoficingcharacteristicsandaerodynamicperformancedegradationofairfoilsunderdifferentincomingflowconditions AT mengwang numericalsimulationoficingcharacteristicsandaerodynamicperformancedegradationofairfoilsunderdifferentincomingflowconditions AT zhongyiwang numericalsimulationoficingcharacteristicsandaerodynamicperformancedegradationofairfoilsunderdifferentincomingflowconditions |