Numerical modelling of spray sheet deflection on planing hulls

You are here: Homepage > Search

Numerical modelling of spray sheet deflection on planing hulls

Numerical modelling of spray sheet deflection on planing hulls

Olin, Linus

This paper considers the modelling of spray formation on planing hulls. The focus is on assessing the applicability of the prevailing theories and two-dimensional and three-dimensional Computational Fluid Dynamics (CFD) simulations in the investigation of different design factors for a novel spray deflection concept. The spray deflection concept is presented and its performance is evaluated by comparison with traditional spray rails. It is found that the prevailing theory where the spray field of a planing hull is represented by a two-dimensional flat planing plate will overestimate the spray thickness, whereas the theories that are based on wedge impact are correlating well with the results from the CFD simulations. Compared to a bare hull, adding spray deflectors reduces the viscous resistance by 28% for the studied cases. The spray deflectors further redirect the spray aftwards which reduce the total drag an additional 4%. The paper also discusses various aspects on CFD modelling of spray formation.

Access

Check availability in my library

Order at Subito €

Export, share and cite

Document information

Title :

Numerical modelling of spray sheet deflection on planing hulls

Contributors:

Olin, Linus (author) / Altimira, Mireia / Danielsson, Jonas / Rosén, Anders

Published in:

Proceedings of the Institution of Mechanical Engineers / M ; 231 , 4

Publication date :

2017

ISSN :

DOI :

https://doi.org/10.1177/1475090216682838

Type of media :

Article (Journal)

Type of material :

Print

Language :

English

Keywords :

Hulls , Computer applications , Mathematical models , Computer simulation , Computational fluid dynamics , Dynamics , Thickness , Planing , Hulls (structures) , Rails , Hydrodynamics , Deflectors , Deflection , Spray , Fluid dynamics , Modelling , Design factors

Classification :

BKL:

50.92 / 50.92 Meerestechnik / 56.30 Wasserbau / 55.40 / 55.40 Schiffstechnik, Schiffbau / 56.30

Similar titles

Numerical modelling of spray sheet deflection on planing hulls

Olin, Linus / Altimira, Mireia / Danielsson, Jonas et al. | SAGE Publications | 2017

Supercritical Planing Hulls

P. R. Payne | NTIS | 1974

Effect of Spray Rails on the Resistance of Planing Hulls

Grigoropoulos, G. J. / Loukakis, T. A. | British Library Conference Proceedings | 1995

Numerical prediction of forces on planing flat catamaran hulls and prismatic hulls

Cheng, Xiaoming | Online Contents | 1999

Wedge Effect on Planing Hulls

Chun-Tsung Wang | AIAA | 1980

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite