Practical Ship Hydrodynamics Episode 11 pdf

... little change in the maximum C L .) ž The taper ratio of the rudder has practically no influence on the maximum C L . 204 Practical Ship Hydrodynamics The tanker performs a soft stop manoeuvre. The engine ... t 3  xxy C s 3  xyy C n 3  xyz  C s 1 s 3 t 3  xyy C s 3  yyy C n 3  yyz  202 Practical Ship Hydrodynamics Except for , details of the rudder shape in side view (e....

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... containerships and ro-ro ships model tests are often performed as part of the regular design process, as IMO regulations require Practical Ship Hydrodynamics Volker Bertram 6 Practical Ship Hydrodynamics This ... Data Bertram, Volker Practical ship hydrodynamics 1. Ships – Hydrodynamics I. Title 623.8 0 12 Library of Congress Cataloguing in Publication Data Bertram, Volker...

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... debate over turbulence modelling for engineering applications, but for ship flows we will have to wait at least 20 Practical Ship Hydrodynamics full-scale will become available overcoming current uncertainties ... methods have no practical relevance for ship flows. The interested reader may find some introduction in Peyret and Taylor (1985). 1.4.3 Applications Practical CFD applica...

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... employed for ship flows, because they require very small time steps for the necessary very fine spatial discretization. A popular implicit scheme is the Crank–Nicholson scheme. 32 Practical Ship Hydrodynamics R R P P Grid ... Poisson 36 Practical Ship Hydrodynamics ž Unstructured grids Unstructured grids allow the largest flexibility in grid generation, but require far more effort...

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... 66 Practical Ship Hydrodynamics ž Wave resistance The ship creates a typical wave system which contributes to the total resistance. ... its speed with high precision. The model is kept on 52 Practical Ship Hydrodynamics 6′ 2 6′ 2 6′ 2 K T K Q h h 10 . K Q K T J Figure 2 .11 Influence of cavitation on propeller characteristics 0 ... velocity components) Ship propeller interactio...

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... for model and ship. The form factor is determined by assuming: c T c F0 D 1 C k C ˛ F 4 n c F0 86 Practical Ship Hydrodynamics ž Open-boundary condition: waves generated by the ship pass unreflected ... P i .Thecoefficients CA i to CD i are determined 72 Practical Ship Hydrodynamics S is the wetted surface in calm water, V s the ship speed. The resistance coef- ficient of the...

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... 96 Practical Ship Hydrodynamics What is the resistance of a ship with L pp D 150 m if the ship is geometri- cally and dynamically similar to the base ship and the approach ... Ð10 3 . 6. A ship of 150 m length sails with 15 kn on water of 12 m depth. It experi- ences a dynamic sinkage amidships of 1 m and a trim (bow immerses) of 106 Practical Ship Hydrodynamics the ... p...

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... 118 Practical Ship Hydrodynamics whole fluid space. This reduces the effort in grid generation (the main cost item ... large 124 Practical Ship Hydrodynamics solutions based on multipole methods. Today, usually two-dimensional panel methods are preferred due to their (slightly) higher accuracy for realistic ship geometries. ... atmospheric pressure. 4. Far away from the ship, t...

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... distributions Section 4.4.6 treated ship reactions in stationary seaway. This chapter will cover probability distributions of ship reactions r during periods T with 142 Practical Ship Hydrodynamics However, ... motion of the cylinder: time average of n 33 Pu 3 Pu 3 D 1 2 n 33 ω e ju 3 j 2 144 Practical Ship Hydrodynamics For practical purposes, one tries to obtain quasi thre...

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... 152 Practical Ship Hydrodynamics Understanding ship manoeuvring and the related numerical and experimental tools is important for the designer for the choice of manoeuvring equipment of a ship. ... contract between ship- yard and shipowner. IMO regulations specify minimum requirements for all ships, but shipowners may introduce additional or more severe requirements for certain sh...

Ngày tải lên: 13/08/2014, 09:20