Computation of Viscous Flow around Propeller-Shaft Configurations
Abstract
A recently developed method for predicting propeller hull interaction, in which a numerical method for calculating the viscous flow over the stern and in the wake of a ship is coupled with a propeller performance program in an interactive and iterative manner to predict the combined flow field, is validated by performing comparisons between computational results and extensive available experimental data for propeller shaft configurations. The steady flow results are in excellent agreement with the data and show that the present procedures are able accurately predict many details of the flow field. The dependence of the flow field on propeller loading, including the formation of the hub vortex, and the influence of hub length, are accurately simulated. Also, the robustness of the solution procedure is demonstrated by performing calculations, which simulate the fanning action of a rotating finite bladed propeller and are in reasonable agreement with the experimental data, point out the difficulties of accurately resolving the complex blade to blade flow and the need for investigating alternative approaches.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1986
- Accession Number
- ADA177217
Entities
People
- Frederick Stern
- Hamn-ching Chen
- Hyoung-tae Kim
- Virendra C. Patel
Organizations
- University of Iowa