The article presents details of a URANS simulation Ship Model Kit of the flow field near a hovering model of the Caradonna and Tung (1981) helicopter rotor [1].The CFD code SPARC [2] proves to be capable of capturing the aerodynamics of a two -bladed rotor in high-speed transonic hover Scales conditions.A comparison of the simulation results with t

The low RCS level out of operating band is urgent for radome while keeping its communication window.To solve this problem, we propose a frequency selective rasorber (FSR) that Ship Model Kit exhibits a pass-band between two absorption bands in this paper.The surface currents on a finite metallic wire media is analyzed firstly to elaborate transvers

Vessel biofouling is a major pathway for the introduction, establishment, and subsequent spread of marine non-indigenous macro-organisms.As a result, national and international regulations and guidelines have been implemented to manage the here risks associated with this pathway, yet widespread enforcement and uptake are still in their infancy.By c

This paper presents the impact of coating topography in piston ring-liner conjunction under mixed regime of lubrication using low viscosity oils.The study provides a time efficient analytical model including mixed-hydrodynamics regime of lubrication under different contact conditions.The method modified the expressions of the contact load and area