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    <title>Transport Research International Documentation (TRID)</title>
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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
    <docs>http://blogs.law.harvard.edu/tech/rss</docs>
    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>Transport Research International Documentation (TRID)</title>
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      <link>https://trid.trb.org/</link>
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    <item>
      <title>ON THE INFLUENCE OF FULL CAVITATING PROPELLERS ON INTERACTION EFFECTS AND DYNAMIC STABILITY OF FAST CRAFT</title>
      <link>https://trid.trb.org/View/480013</link>
      <description><![CDATA[The influences of extensive propeller cavitation on propeller/hull interactions and dynamic stability are discussed for the case of a high-speed planing craft.  Trials observations are reported and results of model experiments with fully cavitating propellers in a free surface cavitation tunnel described.  Propeller-induced pressure fields acting on the ship's hull were determined based on test data and a theoretical approach.  Hull forces were calculated and their effect on running trim and the effective displacement assessed.  Ventilation phenomena triggered by propeller cavitation, the associated induced pressures and their influences on the craft's behaviour were investigated.]]></description>
      <pubDate>Thu, 27 Mar 1997 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/480013</guid>
    </item>
    <item>
      <title>HYDRODYNAMIC FORCES ON A SHIP MOVING WITH CONSTANT RUDDER ANGLE: A THEORETICAL TREATMENT OF RUDDER ANGLE TEST</title>
      <link>https://trid.trb.org/View/480966</link>
      <description><![CDATA[A method is presented to calculate the hydrodynamic forces on a ship moving with constant rudder angle.  The hydrodynamic force characteristics calculated for two VLCC tankers with mariner rudder agree well with the model experiments.  The method is useful for predicting the effective rudder forces of actual ships in view of practical purposes.]]></description>
      <pubDate>Thu, 27 Mar 1997 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/480966</guid>
    </item>
    <item>
      <title>ANALYSIS OF TRENDS IN THE DESIGN OF LARGE MEGA YACHTS</title>
      <link>https://trid.trb.org/View/479450</link>
      <description><![CDATA[Four different designs of large mega yachts and one mini- cruiser are described.  These large yachts have the potential of transatlantic and/or transpacific crossings that can be made relatively comfortable.  The three important aspects which will play a key role in this comfort are discussed: the endurance of the trip; the seakeeping performance; and the propeller-hull interaction.  Finally, options for future propulsion developments are outlined.]]></description>
      <pubDate>Wed, 12 Mar 1997 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/479450</guid>
    </item>
    <item>
      <title>SOME PRACTICAL CONSIDERATIONS CONCERNING THE POWERING PERFORMANCE OF MOTOR YACHTS</title>
      <link>https://trid.trb.org/View/479565</link>
      <description><![CDATA[This paper discusses the resistance, propulsion and propeller hull interaction of motor yachts.]]></description>
      <pubDate>Wed, 12 Mar 1997 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/479565</guid>
    </item>
    <item>
      <title>ANALYSIS OF TRENDS IN THE DESIGN OF LARGE MEGA YACHTS</title>
      <link>https://trid.trb.org/View/467659</link>
      <description><![CDATA[Four different designs of large mega yachts and one mini- cruiser are described.  These large yachts have the potential of transatlantic and/or transpacific crossings that can be made relatively comfortable.  The three important aspects which will play a key role in this comfort are discussed: the endurance of the trip; the seakeeping performance; and the propeller-hull interaction.  Finally, options for future propulsion developments are outlined.]]></description>
      <pubDate>Mon, 04 Nov 1996 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/467659</guid>
    </item>
    <item>
      <title>SOME PRACTICAL CONSIDERATIONS CONCERNING THE POWERING PERFORMANCE OF MOTOR YACHTS</title>
      <link>https://trid.trb.org/View/467776</link>
      <description><![CDATA[This paper discusses the resistance, propulsion and propeller hull interaction of motor yachts.]]></description>
      <pubDate>Mon, 04 Nov 1996 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/467776</guid>
    </item>
    <item>
      <title>PROPELLER-HULL INTERACTION IN INLAND NAVIGATION VESSEL</title>
      <link>https://trid.trb.org/View/456991</link>
      <description><![CDATA[The author presents a computational model of a propeller operating in the wake of an inland navigation flat-bottomed vessel. Using this model it is possible to compute propeller performance as well as propeller-hull interaction coefficients (wake fraction and thrust deduction factor) with limited depth of waterway taken into account. The surface distribution technique was applied to solve the flow over the nozzle (part of a ducted propeller) and a potential component of the flow between the hull and waterway bottom.  A vortex lattice model was used for a screw propeller or impeller.  A simplified Reynolds equation was solved to determine axial velocity in the flow domain.  Results of the calculations showed good agreement with available results of model tests.]]></description>
      <pubDate>Wed, 27 Mar 1996 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/456991</guid>
    </item>
    <item>
      <title>AN EXPERIMENTAL AND NUMERICAL INVESTIGATION OF TURBULENT FLOWS AROUND A SHIP-LIKE BODY WITH AN WITHOUT PROPELLER</title>
      <link>https://trid.trb.org/View/457010</link>
      <description><![CDATA[This paper deals with an experimental and numerical study of the turbulent flow around a submerged body of revolution with a propeller in operation.  The numerical solution of the corresponding Reynolds equation is based on the finite volume approach in connection with the  -  turbulence model.  Two different techniques are used to solve the Reynolds equations numerically.  The calculated profiles of the mean velocities and pressure coefficients are compared with the measurements for different propeller loading conditions.  Also included is a comparison of experimental and numerical data for the case without propeller.  The stern geometry of the model was selected to provide separated flow just before the propeller plane.  The goal of the study is to determine the influence of the propeller loading on the separated flow around the stern of the model.]]></description>
      <pubDate>Wed, 27 Mar 1996 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/457010</guid>
    </item>
    <item>
      <title>COMPUTATION OF VISCOUS FLOW AROUND PROPELLER-BODY CONFIGURATIONS: SERIES 60 CB = 0.6 SHIP MODEL</title>
      <link>https://trid.trb.org/View/455840</link>
      <description><![CDATA[Validation of a viscous-flow method for predicting propeller-hull interaction is provided through detailed comparisons with recent extensive experimental data for the practical three-dimensional configuration of the Series 60 CB = 0.6 ship model.  Modifications are made to the K-  turbulence model for the present geometry and application.  Agreement is demonstrated between the calculations and global and some detailed aspects of the data; however, very detailed resolution of the flow is lacking.  This supports the previous conclusion for propeller-shaft configurations and axisymmetric bodies that the present procedures can accurately simulate the steady part of the combined propeller-hull flow field, although turbulence modelling and detailed numerical treatments are critical issues.  The present application enables a more critical evaluation through further discussion of these and other relevant issues, such as the use of radial- and angular-varying body-force distributions, the relative importance of turbulence modelling and grid density on the resolution of the harmonics of the propeller inflow, and three-dimensional propeller- hull interaction, including the differences for the nominal and effective inflows and for the resulting steady and unsteady propeller performance.  Also, comparisons are made with an inviscid-flow method.  Finally, some concluding remarks are made concerning the limitations of the method, requirements and prognosis for improvements, and application to the design of wake-adapted propellers.]]></description>
      <pubDate>Mon, 04 Mar 1996 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/455840</guid>
    </item>
    <item>
      <title>FREE SURFACE EFFECT ON THE PROPULSIVE PERFORMANCE OF A SHIP (2ND REPORT)</title>
      <link>https://trid.trb.org/View/433731</link>
      <description><![CDATA[Several experiments were carried out in the towing tank of Kyushu University in order to evaluate the effect of the free surface on hull-propeller-rudder interactions using Wigley hulls, model propellers and model rudders. An attempt was also made to elucidate the mechanism of such interactions under free surface effect using theoretical calculations involving Dawson's method, which requires double model flows around a Wigley hull and simplified propeller and rudder models. Since the singularity distributions which represent the hull, the rudder and the propeller can be obtained from the boundary conditions, forces such as hull resistance, propeller thrust and torque, and rudder drag in the self-propelled mode were calculated. Though only approximations of viscous effects are used in the calculations, it is shown that the experimental results are qualitatively explained by the numerical calculations. The effects of sinkage, mean viscous wake fractions at rudder and propeller planes and mesh divisions of the still water surface on the calculated results are dealt with in an appendix.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/433731</guid>
    </item>
    <item>
      <title>A NEW METHOD FOR DESIGN OF OPTIMAL DUCTED PROPELLERS BEHIND BODIES OF REVOLUTION</title>
      <link>https://trid.trb.org/View/433935</link>
      <description><![CDATA[A stream function approach proposed earlier for the "design" of ideal propellers in the open water condition in an ideal fluid is extended to the design of optimal, wake adapted, ducted propellers for deeply submerged bodies of revolution in real fluids. Based on an axiomatic theory of hull-propeller interaction, a condition for optimum propulsion is derived and subsequently the principal parameters of the propeller conceived as a pump stage are obtained in a preliminary design procedure. The flow field computations necessary to determine the distributions of velocity components and static pressure at the inlet and outlet of rotor and stator are outlined. Based on the distributions of the velocities and pressure the total thrust and the rotor thrust can be obtained by integration and the blades of rotor and stator can be designed. A numerical example and results of extensive parametric studies are given in the paper.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/433935</guid>
    </item>
    <item>
      <title>COMPUTER SIMULATION OF SELF-PROPULSION TEST OF AXISYMMETRIC BODY</title>
      <link>https://trid.trb.org/View/434162</link>
      <description><![CDATA[A numerical method is presented for calculating the interaction parameters for the system consisting of a propeller and an axisymmetric body. The method is based on an interactive process in which agreement is sought between the resistance of the body and the propeller thrust. The following numerical procedures have been developed: analysis of the potential flow around the axisymmetric body, based on the Hess and Smith method, calculation of the velocity field induced by the propeller, calculation of viscous flow parameters (Truckenbrodt and Glanville Method) and the calculation of the global and local parameters of hull propeller interaction. The computer program constructed from these procedures allows a more accurate prediction of flow parameters around the system. The program can also be used for analysis of the influence of changes in propeller geometry on flow parameters.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/434162</guid>
    </item>
    <item>
      <title>HYDRODYNAMIC INTERACTION BETWEEN HULL, PROPELLER AND RUDDER OF HIGH SPEED TWIN-SCREW, TWIN-RUDDER SHIPS</title>
      <link>https://trid.trb.org/View/434335</link>
      <description><![CDATA[Based on the results of oblique towing tests of five models and rotating arm tests of one model, the hydrodynamic interaction between hull, propeller and rudder of high speed twin-screw, twin rudder ships with transom stern is obtained. By analysing the relation of interaction coefficients with the drift angles, yawing velocities and ship principal dimensions, the formulas for calculating the hydrodynamic interaction of the ship are established.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/434335</guid>
    </item>
    <item>
      <title>COCHLEA-CHANNELLED STERN AND VIBRATION REDUCTION</title>
      <link>https://trid.trb.org/View/435216</link>
      <description><![CDATA[The paper describes the full-scale vibration measurement of a cochlea-channelled stern ship. An analysis of the interaction of ship hull and propellers and reduction of vibration are given. From the full-scale trials it is found that the cochlea-channeled stern not only yields a high propulsive efficiency, but the stern vibration can also be reduced. The vertical acceleration of vibration of the stern is about 1/3 of that of a conventional ship stern. Ship hull, main engine and propeller can be matched effectively for this new ship stern, so the power of engine is saved and the stern vibration is reduced. A design method is recommended for ship designers to reduce vibration of ship stern.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/435216</guid>
    </item>
    <item>
      <title>DESIGN CRITERIA DERIVED FROM THE WAKE DISTRIBUTION</title>
      <link>https://trid.trb.org/View/436523</link>
      <description><![CDATA[During the early design stages of a ship, a knowledge of the wake distribution of a ship enables criteria to be derived leading to a satisfactory hull propeller interaction which allows vibration and cavitation to be avoided. The paper describes a preliminary analytical process and its application to the selection of afterbody forms and propeller geometry. An empirical method for the prediction of the wake field in the first design stage is proposed. For cases where it is not possible to improve the ship's lines some possible flow straightening appendages are described.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/436523</guid>
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