Journal of Marine Science and Engineering, 2023 Aiming towards a better understanding of the flow field around a fully appended Joubert BB2 submarine model, and in order to complement the experimental investigations of the wake of the hydroplanes and sail, large eddy simulation (LES) with the dynamic ...
Mo Chen +3 more
doaj +1 more source
Experimental investigation of coarse particle conveying in pipes
EPJ Web of Conferences, 2015 The advanced knowledge of particle-water mixture flow behaviour is important for safe, reliable, and economical design and operation of the freight pipelines.
Vlasak Pavel +3 more
doaj +1 more source
Investigation of Darpa Suboff on the “Suction” Influence to the Maneuvering Forces at High Drift Angles and Shallowly Immersion Conditions [PDF]
TransNavThe increasing trend of using underwater manned and unmanned vehicles to perform risky missions is visible. The risks are relate to limited spaces or fairways, ensuring sufficient movement speed and safe handling.
Dobrin Efremov +2 more
doaj +1 more source
Effect of pipe inclination on flow behaviour of fine-grained settling slurry [PDF]
EPJ Web of Conferences, 2019 The effect of flow parameters of fine-grained settling slurry on the pressure drop-velocity relationship, deposition limit velocity and local concentration distribution was studied in an experimental pipe loop of inner diameter D = 100 mm with inclinable
Vlasak Pavel +4 more
doaj +1 more source
Eigenvalue enclosures and exclosures for non-self-adjoint problems in hydrodynamics [PDF]
, 2010 In this paper we present computer-assisted proofs of a number of results in theoretical fluid dynamics and in quantum mechanics. An algorithm based on interval arithmetic yields provably correct eigenvalue enclosures and exclosures for non-self-adjoint ...
Langer, M. +10 more
core +3 more sources
Hydrodynamics of DARPA SUBOFF Submarine at Shallowly Immersion Conditions [PDF]
TransNav, 2019 Recently, the submarine missions are often evolving into operating to littoral areas, which require operating in shallow water. Such shallow water operations strongly contrast with the traditional ones due to the effect of a close to free water surface ...
Dobrin Efremov, Evgeni Milanov
doaj +1 more source
Suppression of tip vortex cavitation of elliptical hydrofoil based on active water injection methods
Zhongguo Jianchuan Yanjiu, 2023 ObjectiveAs tip vortex cavitation (TVC) causes noise radiation and vibration, it is necessary to understand how to predict and control its development, and understand its mechanism in order to suppress it, especially in the field of ship propellers and ...
Kang LIU, Liushuai CAO, Decheng WAN
doaj +1 more source
Electrical Conductivity Distribution in Detonating Benzotrifuroxane
Scientific Reports, 2018 Electrical conductivity profile behind the detonation front in the benzotrifuroxane (BTF) was measured using high-resolution technique. BTF is a peculiar high explosive which is completely hydrogen-free: its molecular formula is C6N6O6.
Nataliya Satonkina +7 more
doaj +1 more source
A SHOCK LAYER ARISING AS THE SOURCE TERM COLLAPSES IN THE P(X)-LAPLACIAN EQUATION
Проблемы анализа, 2020 We study the Cauchy–Dirichlet problem for the p(x)-Laplacian equation with a regular finite nonlinear minor term. The minor term depends on a small parameter ε > 0 and, as ε → 0, converges weakly* to the expression incorporating the Dirac delta function,
S. N. Antontsev +2 more
doaj +1 more source
On Possibility of Detonation Products Temperature Measurements of Emulsion Explosives
Archives of Metallurgy and Materials, 2014 The new view on the structure of the radiance signal recorded by optical pyrometer and the preliminary results of brightness detonation temperature of the emulsion explosive are presented.
Silvestrov V. V. +3 more
doaj +1 more source