A Hybrid Viscous/Potential Flow Method for the Prediction of the Performance of Podded and Ducted Propellers

Spyros A. Kinnas, Shu Hao Chang, Yi Hsiang Yu, Lei He

研究成果: Paper同行評審

18 引文 斯高帕斯(Scopus)

摘要

This paper presents the analysis of the performance for podded and ducted propellers using a hybrid numerical method, which couples a vortex lattice method (MPUF-3A) for the unsteady analysis of propellers and a viscous flow solver (NS-3X or FLUENT) for the prediction of the viscous flow around propulsors and the drag force on the pod and duct surfaces. The time-averaged propeller force distributions are considered as source terms (body force) in the momentum equations of NS-3X and FLUENT. The effects of viscosity on the effective wake and on the performance of the propeller blade, as well as on the predicted pod and duct forces, are assessed. The convergence study of circulation distributions with number of lattices is reported in the ducted propeller case. Finally, the prediction of the performance for podded propellers (both single pull-type and twin-type) and ducted propellers from the present method is validated against existing experimental data.

原文English
DOIs
出版狀態Published - 2009
事件SNAME 12th Propeller and Shafting Symposium, PSS 2009 - Williamsburg, United States
持續時間: 15 9月 200916 9月 2009

Conference

ConferenceSNAME 12th Propeller and Shafting Symposium, PSS 2009
國家/地區United States
城市Williamsburg
期間15/09/0916/09/09

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