Propulsion Performance of the Full-Active Flapping Foil in Time-Varying Freestream
A numerical investigation of the propulsion performance and hydrodynamic characters of the full-active flapping foil under time-varying freestream is conducted. The finite volume method is used to calculate the unsteady Reynolds averaged Navier–Stokes by
Zhanfeng Qi +4 more
doaj +1 more source
Study on the Hydrodynamic Performance of Typical Underwater Bionic Foils with Spanwise Flexibility
Bionic foils are usually similar in shape to the locomotive organs of animals living in fluid media, which is helpful in the analysis of the motion mode and hydrodynamic mechanisms of biological prototypes.
Kai Zhou, Junkao Liu, Weishan Chen
doaj +1 more source
Validation of prediction technology of ship propulsion hydrodynamic performance in LOGOS software package [PDF]
Object and purpose of research. The objects of research are models of propeller and impeller of a water jet. The purpose of the work is to validate the new calculation module LOGOS of domestic software complex for engineering analysis and the technology
Kuznetsova A.V., Taranov A.E.
core +1 more source
Propulsion Rig: A multirotor performance measurement test platform [PDF]
Off-the-shelf multirotor propulsion system components can produce uncertain static and dynamic performance. Commercially, solutions exist to characterise the inexact performance of the propulsion system, yet they are prohibitively expensive. To that end,
Hasewinkel Guy, Pretorius Arnold
doaj +1 more source
Analysis of the Propulsion Performance and Internal Flow Field of an Underwater Launcher
The gas-curtain launch is designed to address the shortcomings of conventional underwater launchers, such as poor dependability and low muzzle velocity. In this paper, the influence of jet structures on the propulsion performance and internal flow field ...
Xinwei Zhang, Yonggang Yu
doaj +1 more source
Conceptual Design and Control Schedule Optimization for Parallel Hybrid Propulsion System of Regional Turboprop Aircraft [PDF]
Current environmental policies for the aviation industry motivate the use of cleaner propulsion systems to reduce its CO2 and noise footprint in the coming years.
Mikhailov Alexey +5 more
doaj +1 more source
Experimental study of controlling tip clearance flow in a pump-jet propulsor
ObjectiveThis paper aims to suppress the adverse effects of tip clearance flow on the hydrodynamic performance and unsteady excitation force of a pump-jet propulsor. MethodAs for the pre-swirl stator pump-jet propulsor, an annular flexible seal structure
Ruilin HAN +5 more
doaj +1 more source
Simulation strategy of the full-scale ship resistance and propulsion performance
The ship powering performance can be predicted based on model tests or simulations. However, differences exist between the full-scale ship performance and extrapolated model data.
Kewei Song +6 more
doaj +1 more source
Analysis of Key Technologies for New Green Marine Propulsion Systems [PDF]
The new green Marine propulsion system, as a new generation of marine propulsion, has advantages of strong mobility, low fuel consumption, low noise, safety and comfort.
Duan Zheng +3 more
doaj +1 more source
Influence of Jumboizing on Propulsive Performance
This paper is concerned with the influence of hull elongation on engine and propulsive performance. Though propulsive performance is known to relate closely to the principle dimensions of a ship, it is not yet clear how ship length can influence the performance of CPP (controllable pitch propeller) ship and FPP (fixed pitch propeller) ship, both of ...
Kirihata, Tomoaki +3 more
openaire +2 more sources

