Ultimate strength of corroded steel plates with irregular surfaces under in-plane compression

Formulation of an Integrated Robust Design and Tactics Optimization Process for Undersea Weapon Systems

Design of Wake Equalizing Ducts using RANSE-based SBDO

Navier-Stokes simulations of high Reynolds number flow around an axisymmetric body supported in a water tunnel were made. The numerical method is based on a finite-differencing high resolution second-order accurate implicit upwind scheme. Four different configurations were investigated, these are: (1) barebody; (2) body with an operating propeller; (3) body with a ring wing; and (4) body with a ring wing and an operating propeller. Pressure and velocity components near the stern region were obtained computationally and are shown to compare favorably with the experimental data. The method correctly predicts the existence and extent of stern flow separation for the barebody and the absence of flow separation for the three other configurations with ring wing and/or propeller.

A Navier-Stokes Solution of Hull-Ring Wing-Thruster Interaction

This research focuses on identifying the most important stern shape aspects, with regard to resistance and propulsion power, of inland ships. Such information should help designers to determine which hull form aspect to adjust in case design requirements need them to do so. The information is obtained by firstly conducting a large series of CFD calculations, using the PARNASSOS code, for systematically varied inland ships. Next, response surface technologies are used to identify the most important aspects. This is done by sequentially adding and/or removing parameters from the response surface in order to find the combination of parameters that explains the majority of the variance in the performance data for the tested hull forms. Finally, an optimization algorithm is used to determine the optimal hull forms for varying displacement, showing which parameters should be adjusted preferably in order to increase (or decrease) ship displacement. This, specifically, should aid designers in making the trade-off between displacement (or cargo capacity) and energy consumption.

Influence of inland vessel stern shape aspects on propulsive performance: Derivation of insights and guidelines based on a computational study

Performance of a Propeller in a Wake and the Interaction of Propeller and Hull

Analysis of the Integral Pumpjet

http://onepetro.org/JSR/article-pdf/8/02/16/2231144/sname-jsr-1964-8-2-16.pdf

Quentin Wald

Papers

Performance of a Propeller in a Wake and the Interaction of Propeller and Hull

Analysis of the Integral Pumpjet

A Theory of Peripheral Jets in Proximity to the Ground With Application to Ground-Effect Machines