Comparative analysis on the methods of preliminarily estimating resistance of yachts

2018 International Joint Conference on Materials Science and Mechanical Engineering

Pan, Wu^1 ; Chaohe, Chen^1 ; Xiao, Zheng^1

College of Civil and Transportation Engineering, South China University of Technology, Guangzhou

510641, China^1

关键词: Comparative analysis;    Empirical equations;    Empirical method;    Map methods;    Numerical simulation method;    SIMPLE method;    Turbulent state;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/383/1/012052/pdf
DOI  :  10.1088/1757-899X/383/1/012052

来源: IOP

【 摘 要 】

The analysis of yacht resistance performance using empirical methods has become an accepted approach over the last decade. Which are based on existing statistical material of yachts to obtain the empirical equations or map methods. There are not many simple methods to obtain the resistance of yachts, and the accuracy of the results is not always uncertain for different types of yachts. The study is focused on determining the appropriate empirical equation to estimate resistance for different kinds of yachts. And based on computational fluid dynamics (CFD), XFlow software to calculate resistance of yachts under turbulent state is selected. This paper provides a review of these methods and two real yachts are chose as examples according to the classification of yachts .It discusses the resultant implications for practical applications. Simulations on an identical yacht using empirical methods and softwares are compared. Good agreements are achieved for both Daisumi Mihiro's empirical methods and numerical simulation methods, which shows that Daisumi Mihiro's empirical equation to estimate resistance of the planning yacht is relatively feasible and Daisumi Mihiros map method is reliable for the transition and drainage boats.