960 



HYDRODYNAMICS IN SHIP DESIGN 



Fouling, factor, proposed table of, 122 

 references relating to, 125 

 resistance, allowances, graphs of, 123, 124 

 factors affecting, 117 

 Fraction, hull-force, for control surfaces, 718 

 rudder-force, definition of, 718 

 thrust-deduction; see Thrust deduction 

 wake; see Wake 

 Free-flooding spaces, flow through, resist due to, 323 

 -running bow propellers, design of, 632 



ship models, for maneuvering tests, 876 

 Freeboard, and sheer for general service, 547 

 protected waters, 547 

 wavegoing, design values, 548 

 deck, tentative graph for, 547, 548 

 minimum, for icebreakers, 797 

 ratio(s), for whale catcher, 550 

 tentative, 548 

 Freeing ports in bulwarks, required area, 554, 555 

 Frequency, eddy, definition sketch for, 16 

 relations for vortex trails, 142 

 of trochoidal waves, data on, 165-168 

 propdev and hull vibration, relation of, 580 

 Friction allowances for surfaces of varjdng roughness, 115 

 coefficients, specific, ATTC 1947 or Schoenherr, 104 

 data, water flow in internal passages, 105 

 drag of moored craft, 128 



ship, calculation of, 126 

 on straight-element and discontinuous-section 

 hulls, 127 

 formulas, summary of, 87 

 power, estimating, 354 

 resistance, and residuarj^, typical percentages, 314 



wetted length and surface of planing craft, 

 268 

 bibliograph}', selected, 128-132 

 calculations, 86 



of from SNAME ERD sheets, 402 

 development of formulas for calculation of, 99, 316 

 formula(s), comprehensive, 101 



for smooth plate in turbulent flow, 102 

 of a planing hull, 128, 268 



specific, tables of for models and ship, 101, 102 

 Froude friction-resistance formulas, 103 

 number, and 7",, tables of, 928 

 definition and use of, 11 

 ratio to Taylor quotient, 11, 928, 929, 932 

 submergence-, for transom sterns, 530 

 tables of, 12-14 

 Full-planing craft, design procedure for, 821 



-scale thrust and towing measurements on ships, 310- 

 312 

 Function, stream, formulas for typical 2-diml flows, 17 

 3-diml flows, 20 

 radial, for 2-diml source-sink pair, 55 

 Funnel ; see Smoke 

 Future, special-purpose craft of the, 818 



Galvanic-action protectors, design of, 704 

 Gaps, ahead of control surfaces, design of, 709-712, 735 

 rudders, 712 



holes, and slots, drag data pertaining to, 294 



rudder hinge, closures for, 726 



Gas(es), and smoke discharge, abovewater, design, 563 

 underwater, comments on, 565 



exhaust, and air, mechanical properties, 922, 924 



-jet propdevs, data on, 337 



velocit.y, minimum, from stacks, 564 

 Gebers friction-resistance formula, 103 

 General considerations in preliminary ship design, 460 

 of miscellaneous propdevs, 638 



design features of abovewater form, 546 



formulas relating to liquid flow, 7 



hull features, determination of, 457 



problems of ship designer, 454 

 Geometric bodies, drag coefficients of, 291 



forms, separation phenomena around, 140 



shapes, added mass for, 419 



2-dimI and 3-diml, drag data for, 291 



variation of ship forms, 204 



waves; see Waves 

 Geometry of the ship, 0-diml, 189, 191 

 Geosims, definition of and flow around, 5 

 Gertler prediction of residuary resistance, 318 



reworking of TSS data, 301-303 

 Gill axial-flow propeller, long'l section through, 339 

 Goldstein criterion, for hydrodynamically smooth surf, 112 



factor K for sorewprop, 616, 617 

 Graphs, conversion, English-metric and metric-English, 



931 

 Gravity, acceleration of, var with latitude, 917, 918 



specific, of a liquid, definition of, 5 

 Great Lakes cargo carriers, design notes, 755 



tabulated hull data, 758-760 

 Greek alphabet, 900 

 Guard(s), and fenders, fixed, design of, 699 



rudder, for ferryboats, 794 

 Guide, contra-; see Contra- 



Head(s), and pressures, ram, tables of, 28-30 



axisymmetric, cavitation data for three types, 152 

 corresp to unit press, fresh and salt water, 28, 29, 916 

 expression of cavitation number as, 11 

 Heavy weights, long'l position in a planing craft, 850 

 Heel, angle of, and lateral wind moments, 285 

 Height(s), above surface, increase of wind velocity with, 

 274 

 sheer, in fractions of WL length, 549 



related to wave steepness, 548 

 wave, and steepness ratios, 169 



to wave length, ratios in ship design, 170 

 Helix angles, blade-, of sorewprops, 340, 341 

 Hillman straight-element shallow-water hull, 666, 667 

 Hinge gaps, rudder, closures for, 691, 726 

 Historical highlights, introduction of, xx 

 History of operation as basis for fouling, 119, 120 

 Hogner's contribution to Kelvin wave system, 161 

 Holes, gaps, and slots, drag data, 294 

 Hollow-face prop-blade sections, use and disadvantages 



of, 627 

 Hollows and humps in resist curves, 466, 467 

 Horn, supporting, for rudder, design notes, 690 

 Hotchkiss propeller, explanatory diagrams, 339 

 Housing bow propeller, design of, 797 

 Hovering, applied to a submarine, definition of, 809 

 Hub(s), cavitation, predicting, 155 



