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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>VERTICAL WAVE EXCITATION FOR BODIES OF REVOLUTION</title>
      <link>https://trid.trb.org/View/480995</link>
      <description><![CDATA[An alternative formulation, based on the Haskind relation, is presented for the vertical component of the linearized wave force acting on fixed bodies with vertical axis of revolution in finite or infinite water depth without superimposed stationary current.  The approach is inspired by the long-wave approximation which is extended by the introduction of 'excitation factors', taking into account wave attenuation with depth and influence of the ratio between the horizontal dimensions of the body and the wave length.  Examples demonstrate that, except for very low frequencies, approximations for these excitation factors do not lead to sufficiently accurate results, so that in most of the cases the knowledge of the distribution of linearized velocity potential to heave over the wetted surface of the body is required.]]></description>
      <pubDate>Thu, 27 Mar 1997 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/480995</guid>
    </item>
    <item>
      <title>DETERMINATION OF THREE-DIMENSIONAL BODY FORMS FROM GIVEN PRESSURE DISTRIBUTION OVER THEIR SURFACES</title>
      <link>https://trid.trb.org/View/467501</link>
      <description><![CDATA[A method for solving inverse three-dimensional problems in hydromechanics is proposed which makes it possible to fit desired pressure distributions within design constraints immediately in the course of calculations.  Examples of the method of application are given for bodies of revolution in flows at nonzero drift angles.  These flows are not axisymmetric.  Bodies of revolution in them are very handy examples of demonstrations of the method, and these examples have many technical applications.]]></description>
      <pubDate>Mon, 04 Nov 1996 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/467501</guid>
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    <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>NUMERICAL PREDICTIONS OF THE PERFORMANCE CHARACTERISTICS OF PROPELLER BEHIND BODIES OF REVOLUTION AND OF THE PROPULSION FACTORS</title>
      <link>https://trid.trb.org/View/455169</link>
      <description><![CDATA[A viscous-solution method is presented for analysing the flow field and predicting the performance characteristics of the open propeller and of the propeller behind a body of revolution.  The Streamline Iterative Method has been used to calculated the flow field with the turbulent equation of K-epsilon model.  The direct problem solution requires the calculation of the changes of velocity and energy through the propeller.  It is treated by calculating the outlet flow angles (the measured blade outlet angles and deviation angles due to real fluid effects) for the propeller blade sections.  The propeller performance parameters can then be calculated by simply considering momentum and energy. In this paper, numerical results of performance characteristics of a B4-70-12 propeller and B3-50 series propellers are given and compared with experiments.  Also, the detailed process of predictions of self-propulsion tests for a submerged body of revolution propeller is given.  The numerical results show reasonable agreement with experiments.]]></description>
      <pubDate>Wed, 28 Feb 1996 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/455169</guid>
    </item>
    <item>
      <title>A NUMERICAL INVESTIGATION OF THE REYNOLDS SCALE EFFECT ON THE RESISTANCE OF BODIES OF REVOLUTION</title>
      <link>https://trid.trb.org/View/455186</link>
      <description><![CDATA[A numerical study of the resistance of bodies of revolution is performed by a systematic series of computer runs.  The k - epsilon model is employed to calculate Reynolds stresses in a finite-volume method using a staggered grid.  A new velocity-pressure coupling procedure as well as a grid refinement technique have been developed to accelerate convergence.  The effect of various parameters affecting the numerical solution is investigated, such as external boundary conditions, wall function method und grid resolution.  Applications of the method for two bodies of revolution show the trends of resistance components with Reynolds number, and comparisons are made with model-ship extrapolation approaches.]]></description>
      <pubDate>Wed, 28 Feb 1996 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/455186</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>DEVELOPMENT OF FLOW STRUCTURES IN THE LEE OF AN INCLINED BODY OF REVOLUTION</title>
      <link>https://trid.trb.org/View/433947</link>
      <description><![CDATA[Laser-induced fluorescence has been utilised for visualising the flow structures behind an inclined body of revolution in a large towing tank. The observations have focused on the effects of the incidence angle and the Reynolds number on the axial development of the large-scale structures within the separated region, as well as the location of boundary-layer separation and reattachment. At low angles of incidence and low Reynolds numbers the flow is symmetric, containing two large centres (foci) of coalescing stream surfaces as well as several secondary structures. The transition to an asymmetric flow is observed to begin first in the downstream sections with the gradual detachment of the left primary sector and an inward motion of the right-hand centre. While detaching, the primary left structure becomes elongated as the stream surfaces break and coalesce into two distinct centres. The resulting two foci start interacting further downstream and eventually recombine. When the left centre of coalescence is completely detached, an additional centre forms in its place and the right-hand structure starts lifting away from the surface. Evidence of asymmetry very close to the tip of the model at 45 degree inclination is also provided. A series of qualitative drawings of the flow topology is provided. They follow the evolution of the flow structures in the lee of the model.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/433947</guid>
    </item>
    <item>
      <title>ON THE NUMERICAL CALCULATION OF THE TURBULENT FLOW-FIELD AROUND BODIES OF REVOLUTION AT ZERO INCIDENCE</title>
      <link>https://trid.trb.org/View/434156</link>
      <description><![CDATA[The present work deals with the computation of the turbulent flow-field around bodies of revolution at zero incidence. the corresponding Reynolds equations are solved numerically by the finite volume method and the Reynolds stresses are modelled according to three different eddy viscosity models. Two types of coordinate systems have been employed for the solution at the front and the rear part of the body, respectively. Calculated results for the mean velocity profiles, friction and pressure coefficients are compared to experiments for four axisymmetric bodies of revolution.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/434156</guid>
    </item>
    <item>
      <title>PREDICTION OF FORCE AND MOMENT FOR SUBMERGED BODIES</title>
      <link>https://trid.trb.org/View/434157</link>
      <description><![CDATA[The XYZ Free Surface program has been extended to analyse fully submerged bodies moving at constant speed near a water surface. This new capability has been applied to potential flow computations for two selected bodies of revolution. Computed results are presented for wave elevation, velocity, pressure, forces and moment at low, medium and high speeds.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/434157</guid>
    </item>
    <item>
      <title>DRAG OF BODIES OF REVOLUTION IN SUPERCAVITATING FLOW</title>
      <link>https://trid.trb.org/View/434650</link>
      <description><![CDATA[The drag of bodies of revolution at zero degree angle of attack in supercavitating flow has been calculated. The potential flow about the body and cavity is calculated using an axial distribution of source/sink elements and is coupled with laminar and turbulent boundary-layer solutions for the body. Excellent agreement for drag coefficient is demonstrated between theory and a water-entry experiment. Results show skin-friction drag is the dominant drag component for high-speed water entry or high-speed underwater travel.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/434650</guid>
    </item>
    <item>
      <title>COMPUTATION OF TOTAL FORCES AND MOMENTS OF BODIES OF REVOLUTION MOVING BENEATH THE FREE SURFACE</title>
      <link>https://trid.trb.org/View/436142</link>
      <description><![CDATA[The method developed by Young is used to compute the total drag of bodies of revolution. It is assumed in this method that there is no flow separation. The axial force is computed with this method. The lateral force and pitching moment are computed under the assumption that there is separation in the two-dimensional cross flow. The boundary layer equation is solved to the separation point and the friction force is integrated to compute frictional drag. It is assumed that  a constant pressure is acting on the two-dimensional section beyond the separation point.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/436142</guid>
    </item>
    <item>
      <title>IMPROVED, ROBUST, AXIAL LINE SINGULARITY METHOD FOR BODIES OF REVOLUTION</title>
      <link>https://trid.trb.org/View/437649</link>
      <description><![CDATA[The axial line singularity method has been a popular engineering approach for representing incompressible, inviscid flow about an inclined slender body of revolution since von Karman first used it more than 60 years ago. Despite its usefulness, however, practitioners have been plagued by failures of the method for many bodies of practical interest. Various approaches have been developed for increasing the range of applicability of the method, but none of them can be counted on to work in general. The paper points out that the source of the failures is common to all attempts to solve Fredholm equations of the first kind and shows that a previously developed smoothing technique yields a robust method for numerical solving the governing equations. The technique is easily retrofitted to existing codes and requires very little extra computational work. The method allows the number of singularities to be increased until the most accurate line singularity solution is obtained. The technique is applied to various difficult bodies and comparisons with data are given.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/437649</guid>
    </item>
    <item>
      <title>INVESTIGATION OF THE SHIP VISCOUS RESISTANCE COMPONENTS AND THEIR DEPENDENCE ON THE HULL FORM PARAMETERS BASED ON THE BODY OF REVOLUTION ANALOGY</title>
      <link>https://trid.trb.org/View/438067</link>
      <description><![CDATA[A method for calculating the ship friction resistance based on the Zazurca's proposal was developed, which deals mainly with a simple transformation of the actual ship form into a body of revolution for which characteristics of the potential flow and the boundary layer were calculated. Algorithms and computer programs were elaborated. Based on these programs systematic calculations were performed of the ship frictional resistance for about eighty ship forms for which results of model resistance tests were available. The ship forms used embrace a wide range of fullness. Calculations showed evidences of boundary layer separation, viz. for some forms of larger fullness the velocity of the potential flow and the shear stress reached the zero value at some distance from the trailing edge. The distance changed in a systematic way with the ship form parameters. The method of friction resistance calculation was verified for a single case using experimental results for four geometrically similar models of the series 60 as published by Conn and Ferguson. The comparison showed a satisfactory agreement between the calculated and measured values of the friction resistance components.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/438067</guid>
    </item>
    <item>
      <title>SUPERSONIC FLOW AROUND BODIES OF EVOLUTION IN GASEOUS WATER</title>
      <link>https://trid.trb.org/View/438084</link>
      <description><![CDATA[Supersonic flow around bodies of revolution in gaseous water is investigated. A compressible potential-flow in thermodynamic equilibrium with direct pressure-density relation describes the flow field. The shock surface in front of the body is modelled by a source distribution. Numerical results show in comparison to well-known results of supersonic aerodynamics only limited transferability.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/438084</guid>
    </item>
    <item>
      <title>NONLINEAR BUCKLING ANALYSIS OF STIFFENED SHELL OF REVOLUTION</title>
      <link>https://trid.trb.org/View/438318</link>
      <description><![CDATA[Nonlinear buckling problem of stiffened shells of revolution under uniform external pressure is discussed, based on the energy principle. Nonlinear buckling equation and calculation methods are presented using semi-analytic and semi-discrete methods. the physical nonlinear problem is described by plastic shape theory. A multi-segment method along a meridional direction to discrete the shell is used to take account of plasticity. Some numerical calculations and experiments on stiffened shell of revolution were carried out. the results indicate that the method presented in this paper is satisfactory and the calculation is simple and convenient.]]></description>
      <pubDate>Mon, 14 Aug 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/438318</guid>
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