... only problem are investigated and the steady fully-wetted simulation for the inducer is studied in this paper. The convergence studies of rotor averaged cavitating circulation distributions with number of panels on the blade and with different time step sizes are presented in the water-jet case...

... section subroutine lift coefficient optimizer turbine design propeller circulation distribution equation OpenProp: An Open-source Design Tool for Propellers and Turbines B. P. Epps1 (SM), M. J. Stanway1 (SM), and R. W. Kimball2 (AM) 1: Graduate student, Massachusetts Institute of Technology...

... as on the predicted pod and duct forces, are assessed. The convergence study of circulation distributions with number of lattices is reported in the ducted propeller case. Finally, the prediction of the performance for podded propellers (both single pull-type and twin-type) and ducted propellers from the present...

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

... of propulsor performance. swirl circulation efficiency contour radial distribution thrust coefficient field quantity duct coefficient quantity solver streamtube lifting line grid propeller propulsor circumferential mean circulation distribution blade row The Preliminary Design...

... distribution propeller circulation distribution gamma Optimisation and Design of Contra-Rotating Propellers Mario Caponnetto Abstract A new methodfor the optimisation and design of Contra-Rotating Propellers (CRP) is presented in this paper. It is based on a Genetic Algorithm (GA) applied to a Vortex...

... model is hosed on the classic moderately loaded propeller lifting line model. This model is modified in order to take into account new boundary conditions for the radial circulation distribution and nozzle surface effect on the induction factors. The lifting surface model also includes new features...

... This paper presents the hydrodynamic design procedure for multi-stage blade-row marine propulsors using the original authors' model of the vortex wake. The special attention is paid to optimization algorithms that solve the problems about optimum spanwise circulation distribution and optimum...

... A screw propeller design problem is considered for two cases: 1) both circulation distributions along chord and radius are pre-set; 2) chord circulation distribution is pre-set and radial circulation distribution is to be optimized for maximum propeller's efficiency. In both cases a Generalized...

... representation matrix massachusetts institute kinematic boundary condition hub sheet strength inflow influence coefficient vortex flow solver control point ocean engineering circulation distribution A Coupled Lifting-Surface Analysis Technique for Marine Propulsors in Steady Flow J.E. Kerwin,1...

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

... small vehicle propulsor rotation speed circulation distribution reynolds number THE SOCIETY OF NAVAL ARCHITECTS AND MARINE ENGINEERS 601 PAVONIA AVENUE, JERSEY CITY, NJ 07306 Paper to be presented at the Propellers/Shafting '94 Symposium Virginia Beach, Virginia, September 20-21, 1994 A Postswirl...

... kutta condition vortex detachment point arrangement bem panel method detachment point grid propeller circulation distribution THE SOCIETY OF NAVAL ARCHITECTS AND MARINE ENGINEERS 601 PAVONIA AVENUE, JERSEY CITY, NJ 07306 Paper to be presented at the Propellers/Shafting '94 Symposium...

... The applications of vortex theory lo propeller design is discussed New approach is based on an improved mathematical model of the propeller, including optimization of circulation distribution with restrictions; prescribing of velocity distribution separately for suction and pressure sides...

... propulsor load distributions is discussed. An algorithm for the determination of optimum radial circulation distributions for this class of propulsors is presented. This algorithm is incorporated in a vortex-lattice, lifting-line model for lightly to moderately loaded marine propulsors. This computer model...

... skewness near the propeller tip, which results in inaccurate calculations of velocities. A "blade orthogonal grid" is developed to solve this problem. Improvements are obtained with this gridding scheme. A linear relationship has been found to exist between thickness and circulation distribution...