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《Journal of Naval University of Engineering》 2010-01
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Prediction and comparison of open water performance of ducted propeller

Lü Xiao-jun,ZHOU Qi-dou,JI Gang,PAN Yu-cun,FANG Bin(College of Naval Architecture and Power,Naval Univ.of Engineering,Wuhan 430033,China)  
The open water performance of a ducted propeller was simulated by using computational fluid dynamics software.The validation of different mesh models and turbulence models were discussed.By comparison of calculated results with experimental data,it was found that Wilcox turbulence model is the best turbulence model in simulating the open water performance of a ducted propeller.The study also indicates that the present computational approach with combined structured meshes and unstructured meshes is both practicable and accurate enough for more realistic problems.When the mesh model has a few of highly skewed elements,the calculated errors can also be controlled within 10 percent if the convergence of simulation is obtained.Moreover,for more detailed and accurate results,the improvement of mesh quality is recommended.The mesh refinement does not always mean the reduction of error,although it can bring reliable results.
【Fund】: 国家部委基金资助项目(7130609)
【CateGory Index】: U664.33
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