... in propeller design. cavitation requirement variation circulation propeller cavitation inception diagram notation propulsion united states government marine transportation noise vortex cavitation noise propeller camber wakefield thickness efficiency Propeller and Shafting Symposium...

... features of 3-D cloud cavitation. enhanced recovery circulation coefficient cavitation upstream oil & gas tlv cavitating flow reservoir simulation vorticity cavitation number rectangular hydrofoil vortex gap cavitation cavitating response gap flow frequency mesh harwood influence...

... representation of the total flow field initially developed in the Marine Hydrodynamics Laboratory at MIT starting in the early 1990's. production monitoring ka-455 rotor pbd-14 axisymmetric solver tangential component circulation radial distribution normal velocity grid ocean engineering...

.... efficiency prediction pitch change propeller blade deflection cavitation performance rigid propeller uniform flow circulation distribution circulation wake screen mean load flexible propeller geometry propeller geometry flow field deflection composite propeller no-load geometry Design...

... of results from the current numerical method with those of other computational methods and with those measured in experiments are presented. upstream oil & gas mpuf-3a aft propeller euler solver interaction circulation kinna fore propeller inflow gbflow euler equation symposium solver...

... efficiency swirl field quantity radial distribution coefficient lifting line circumferential mean circulation thrust coefficient quantity grid circulation distribution solver propeller blade row contour duct streamtube propulsor Potential propulsors for current...

... upstream oil & gas propeller wake prediction velocity field circulation calculation pressure distribution algorithm reservoir simulation strength rudder coefficient propulsor integral equation strut propeller velocity component proceedings arrangement modified trailing...

.... Cavitation evaluation testing was performed in the Navy's Large Cavitation Channel. NOMENCLATURE C Chord c, Lift coefficient, LiftpV2C) D Propeller diameter 1 Carderock Division, Naval Surface Warfare Center, Bethesda, MD EAR Expanded area ratio G Non-dimensional circulation f Camber J Advance ratio, VlnD 13...

... of the overall circulation and forces on both the duct and propeller. The method presented in this paper does not attempt to predict the details of the flow in the tip clearance region, but rather accounts for the effects of the gap flow on the global flow solution in order to obtain a more accurate prediction...

... massachusetts institute propulsor separation calculation duct parametric study interaction thrust circulation design process geometry propeller circulation distribution A Design Procedure for Marine Vehicles with Integrated Propulsors J.E. Kerwin,1 Fellow, S. D. Black,2 Associate Member, T. E...

... are presented. variation duct influence function propeller circulation computational band rotation angle inflow maneuvering force strength vortice loading coordinate system ducted propulsor propulsor artificial intelligence rotor geometry ducted propeller blade tip THE SOCIETY...

.... effective inflow iteration boundary layer inflow ran calculation boundary condition velocity field body force model propeller circulation flow field computation turbulence model propeller model upstream oil & gas calculation coefficient ran code grid equation THE SOCIETY OF NAVAL...

... frequency x,r, y cylindrical coordinates of field poi nt xo,ro. ifo - cy l indrical coordinates of loading point z - number of stator or pro- peller blades ~ (rl angle of attack ,.B (rl r <r) - hydrodynamic pitch angle - circulation density of Scxi blade section Dirac delta function of argument x tr71...

... sheet naval architect transient maneuvering process circulation time step velocity field control point ship speed pavonia avenue jersey city coefficient propeller vortex segment vorticity propeller characteristic maneuvering process equation THE SOCIETY OF NAVAL ARCHITECTS AND MARINE...

... A theoretical method for determining optimum circulation distributions for propeller/stator combinations and determining the circumferential variation in circulation for non-axisymmetric stators is presented. Comparisons of theoretical predictions and water tunnel measurements are given...

... This paper sets forth recent developments in the design theory for contrarotating propellers. The analysis includes a more accurate solution for the optimum circulation distribution than has been previously formulated, it includes prediction of slipstream contraction for the first time...

... A numerical approach to determine the optimum circulation distribution of a propeller inside a given duct 18 presented. The propeller blades are modelled by lifting lines. The duct is represented in non-linear theory by using a potential based panel method. The propeller lifting lines...

... pitch propeller efficiency circulation table ii THE SOCIETY OF NAVAL ARCHITECTS AND MARINE ENGINEERS One World _Trade Center, Suite 1369, New York, N.Y. 10048 Paper 10 be in_ser,ted al the Propellers '81 Symposiwn, Vuyinta Beach, V,rginia, May 26-27, 1981 Ono Optimum Propeller Performance No. 14...

... craft. mutually application company high-speed craft efficiency propeller aft propeller circulation boat cavitation characteristic crp rotation correction rh 0 contra-rotating propeller characteristic propeller diameter design THE SOCIETY OF NAVAL ARCHITECTS AND MARINE...