972 



HYDRODYNAMICS IN SHIP DESIGN 



Self-propelled, model tests, curves, 377-379 

 when backing, 3SS 

 data from, 377, S75 

 for screwprops, 632 

 motorboats, ■nith dynamic lift, 864 

 use of stock screwprops, 870 

 Semi-planing small craft, design of, 823 

 Separation criteria, 133 



for buttocks, 136 

 waterlines, 135 

 detection of, 136 

 drag, approx of, 321 



estimate of, around a ship, 139 

 effect on ship drag calculations, 213 

 phenomena around geometric forms, 140 

 zone(s), aeration of and leakage into, 140 

 apparent flow deflection around, 139 

 extent of, 136 



indicated by tufts, 137, 254 

 omitted from wetted-surface calculations, 109 

 on ships, typical, 134 

 Series, charts, propeller-, comments on, 589 

 listing of, 584-588 



modification of design procedure, 596 

 preliminary design procedure, 592 

 requirements for, 584 

 Japanese fishing-vessel, 300 

 model, residuary resistance from, 298, 316 

 standard, Taylor, contours of Rr/A, 298 

 Gertler reworking of, 301 

 parent form for, 223-225 

 section-area curves, 224 



0-diml ordinates of, 226 

 0-diml offsets for, 225 

 systematic, resistance data from, 298 

 Shadowing allowances for appendages in tandem, 292 

 Shaft(s), and struts, exposed, design of, 678 

 exposed, fairing enlargements around, 744 

 of at emergence, 746 

 rotating, drag of, 293 

 strut design for, 678 

 power; see Power 



propeller, design of bossings for, 682 

 fairing enlargements around, 744 

 Shallow and restricted waters; see Water(s), confined 



water; see Water(s), shallow 

 Shape(s), abovewater bow section, design of, 551 



and characteristics for round-bottom motorboats, 854 

 coeffs, for DWL's, 228 

 proportions data, typical ships, 223 

 buttock, for planing craft, 839 

 chine, for planing craft, 837 

 designed waterhne(s), first sketch, 479 



typical, 228 

 geometric, added masses for, 419 



vibrating, comparison with vibrating ship, 423 

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

 hull, along bilge diagonal, 517 



and propulsion, on a submarine, 813 

 selection, 476 



for round-bottom motorboat, 854 

 section, for planing craft, selecting, 835 

 shallow water, 662 

 in entrance and run, 515 



Shape(s), stem, at various waterlines, 508 



of motorboat, 842 

 strut-arm section, for ultra-high speeds, 680 

 transverse, for shallow-water vessels, 662 

 vessel, near DWL, 504 

 Shearing stress, internal, representative values for water, 



94 

 Sheer and freeboard, for general service, 547 



protected waters, 547 

 deck, for the sake of appearance, 547 

 heights, in fractions of WL length, 549 



related to wave steepness, 548 

 lines, 0-diml, for five ship types, 551 

 Shell(s), plating, approx to volume of, 486 



smoothness problems on, 739 

 racing, design of hulls for, 752 

 Shingle trim-control device on planing craft, 840 

 Ship(s), ABC; see ABC ship 



air and wind resistance, estimating, 274 



analysis of wake around and behind, 248, 250, 254, 261 



and models, bibliography on confined-water effects, 



415 



observed resistance data for, 297 



propellers, effect of cavitation on, 145 

 behavior in confined waters, predicting, 389 

 boundary-layer characteristics, data on, 95 

 cavitation on, occurrence of, 145 

 data, Russian, tabulated, 229 



typical, tabulated, 223-228 

 design; see Design 

 designer, first task of, 446 



general problems of, 454 

 dimensions, basis for selection of, 457 

 existing, increasing the power and speed of an, 387 

 fat, changes of attitude and trim, 329 



very, resistance data for, 303-306 

 flow patterns; see Flow 

 form(s), geometric variation of, 204 



mathematical methods for delineating, 186 



of good performance, comparison of new design 

 with, 496 



predicting vel and press distribution around, 257 



schematic, distribution of vel and press around, 47 



suitable for calculating wave resist, 219 



summary of 0-diml equations for, 192 

 hull, general, formulas for wind drag of, 276 



submerged and surface, calculating resist of, 313 

 in unsteady motion, added mass of water around, 417 

 inception and effect of cavitation on, 145 

 lengths and speeds, Reynolds numbers for, 94 

 lines, involving developable surfaces, 765 



mathematical, selected references, 204 

 use of, 186 

 mass, added, in unsteady motion, 417 

 mathematical methods for delineating, 186 

 model(s); see Models 

 model-testing program for large, 868 

 moored, estimating forces on, 287 

 motion; see Motion 



diagrams, 325 

 observed resistance data for, 297 

 operation in confined waters, design features for, 659 

 parameters and coefficients, ratios of, 930 

 performance, practical benefits of calculating, 220 



