Large eddy simulation of the flow past the DTMB5415 surface combatant hull with and without bilge keels
Paper i proceeding, 2011

The flow around the DTMB5415 surface combatant hull with and without bilge keels is studied numerically by the use of a Large Eddy Simulation (LES) method. The main purpose for bilge keels is to reduce roll motions when operating in ocean waves. The flow resistance should at the same time be affected as little as possible. The computations presented here are for straight course in calm water conditions and show only a small change in the wake of the hull and there by a minimal effect on the resistance. The computations are made as a preparatory step before investigating other conditions, such as yaw angle.

Surface combatant

Naval architecture

Roll motions

Water waves

Minimal effects

Flow resistance

Yaw angles

Large eddy simulation

Bilge keel

Water conditions

Large eddy simulation (LES)

Computational methods

Naval hydrodynamics

Large Eddy simulation methods

Marine engineering

Författare

U. Svennberg

Totalförsvarets forskningsinstitut (FOI)

Christer Fureby

Fartygs framdrivning och miljöpåverkan

M. Liefvendahl

Totalförsvarets forskningsinstitut (FOI)

Niklas Alin

Totalförsvarets forskningsinstitut (FOI)

MARINE 2011 - Computational Methods in Marine Engineering IV (4th International Conference on Computational Methods in Marine Engineering, MARINE 2011; Lisbon; 28-30 September 2011)

605-616

Ämneskategorier

Farkostteknik

ISBN

9788489925793

Mer information

Senast uppdaterat

2018-02-27