Submarines May Have Nowhere To Hide With U.S. Navy Set To ... - Forbes
WEBNov 16, 2020 · However slowly it travels, an 18,000-ton, 500-foot-long submarine moves a lot of water as it goes, and that generates a wake. On the surface, the wake is invisible to the human eye, lost in...
Wake Features of Moving Submerged Bodies and Motion State …
WEBThe interaction between a moving submerged body and a homogeneous/stratified fluid generates a Bernoulli hump, a Kelvin wake, and an internal wake on the water surface. The height distribution of wakes is directly related to the location and motion state of the submerged body.
The U.S. Navy's New Airborne Submarine Radar: How the Tech …
WEBNov 19, 2020 · The AN/APS-154 Advanced Airborne Sensor (AAS) will spot the invisible wakes left by submarines underwater, telltale clues that something large is lurking beneath the waves.
Airborne optical polarization imaging for observation of submarine ...
WEBAug 1, 2021 · The interaction between a moving submarine and seawater generates characteristic wakes on the sea surface, enabling indirect detection of undersea objects via airborne remote sensing. Here, we demonstrate the feasibility of using visible-light polarization imaging to observe submarine wakes.
Evolutions of hydrodynamic and electromagnetic wakes induced …
WEBNov 1, 2023 · The vortexes shedding from the geometry of the submarine-propeller system generate turbulent wake, extraordinarily influencing the dramatic heat and mass transfer processes and the concomitant induced EM characteristics.
Investigation on the thermohaline structure of the stratified wake ...
WEBFeb 1, 2021 · In this work, a stratified thermohaline wake model, in which major fluid properties vary with temperature and salinity, is presented to address heat and mass transfer characteristics in the stratified wake signatures induced by a propagating submarine via Large-Eddy Simulation (LES) approach.
Making waves on the quiet: how submarines can avoid detection
WEBSep 6, 2019 · Our research aims to better understand the way submarine wakes are formed and to improve the ability of a submarine to remain undetected from surveillance systems.
WEBThe submarine wake detection program at the Naval Air Development Center (NADEVCEN) is proceeding in two concur rent phases: 1. a paper study phase which is an attempt to enumerate, classify and study all the modifications that the pres'enoe or passage or a submarine may produce in its envi ronment, and 2.
WEBAnalyze near and intermediate fields in a wake using remote measurements from AUV and USV platforms and corresponding numerical models. Explore of wake dynamics as a function of submarine speed and the motion pattern. …
Hydrodynamic performances and wakes induced by a generic submarine …
WEBJul 20, 2023 · The wake of a submarine is a crucial element that greatly affects its stealth and hydrodynamic performance. To investigate the propagation and evolution characteristics of submarine wakes in a stratified fluid, particularly under free surface conditions, a numerical method to simulate the linearly …