Analysis of the blade boundary-layer flow of a marine propeller using a RANS solver. (1st September 2020)

• Record Type: Journal Article
• Authors: Baltazar, João; Melo, Daniela; Rijpkema, Douwe
• Is Part Of: Ocean engineering. Volume 211(2020)
• Publication Date: 2020-09-01
• Subjects: Marine propeller -- Blade boundary-layer flow -- RANS solver -- Transition modeling; Ocean engineering -- Periodicals; Ocean engineering; Periodicals; 620.4162
• DOI: 10.1016/j.oceaneng.2020.107633
• Languages: English
• ISSNs: 0029-8018

Abstract

Abstract: In this paper a comparison between RANS simulations carried out with the k − ω SST turbulence model and γ − R ̃ e θ t transition model, and experimental measurements for marine propeller P4119 is made. The experiments were conducted at the David Taylor Model Basin and comprehended three-dimensional velocity components measurements of the blade boundary-layer using a LDV system in uniform conditions. The present work includes an estimation of the numerical errors that occur in the simulations, analysis of the propeller blade flow, chordwise and radial components of the boundary-layer velocity profiles and boundary-layer characteristics. From this comparison and depending on the selected inlet turbulence quantities, we conclude that the transition model is able to predict the extent of laminar and turbulent regions observed in the experiments. Moreover, the predicted velocity profiles show good agreement with the experimental measurements and verified the location of transition. Highlights: The k − ω SST turbulence model agrees well with tripped blade velocity measurements. Selection of inlet turbulence quantities is crucial with the γ − R ̃ e θ t transition model. The γ − R ̃ e θ t transition model agrees well with the smooth blade velocity measurements. Boundary-layer integral quantities show typical laminar and turbulent flow behaviors. The models may be used for prediction of both integral and local flow quantities.