Results 21 to 30 of about 11,454 (295)

MATHEMATICAL MODELING OF DYNAMICS MOVEMENT OF A PISTON SKIRT IN THE CYLINDER OF THE INTERNAL COMBUSTION ENGINE

open access: yesRUDN Journal of Engineering Research, 2017
There examined method theoretical research of sectional piston skirt hydrodynamic lubrication, and influence of piston and connection rod groups options on it.
S V Smirnov, A R Makarov, A A Vorobyev
doaj   +1 more source

On Geodesic Hydrodynamic Motions. Heisenberg Spin Connections

open access: yesJournal of Mathematical Analysis and Applications, 2000
The steady circulation-preserving hydrodynamic motions with velocity \({\mathbf q}=q{\mathbf t}\) are studied under either of the geometric constraints \({\mathbf t}\cdot\text{curl}{\mathbf t}=0\) or \(\text{div}{\mathbf t}=0\). It is established that the geodesic unit tangent \({\mathbf t}\)-field is constrained by privileged Heisenberg spin-type ...
Rogers, C., Schief, W.K.
openaire   +2 more sources

EVALUATION OF HYDRODYNAMIC FORCE ON CONNECTED STONE

open access: yesPROCEEDINGS OF HYDRAULIC ENGINEERING, 2008
Nature friendly hydraulic structures made of natural stones such as ripraps have attracted attention in recent years. However, those structures are subject to failure problem under flood flow. Therefore, the authors proposed connected stone to increase its stability against flood flow.
MAENO, Shiro   +4 more
openaire   +2 more sources

Geochemical barriers in the technogenic zone of tungsten deposits in Eastern Transbaikalia (Russia) [PDF]

open access: yesE3S Web of Conferences, 2023
The relevance of the study is due to the need to protect the environment in mining regions in connection with the pollution of surface and groundwater.
Chechel Larisa
doaj   +1 more source

Analysis of Hydrodynamic Methods for Enhancing Oil Recovery

open access: yes, 2021
In the modern world, the hydrocarbons represent a raw material for various industries, therefore, the fight against the problem of extracting residual oil is relevant and important at this stage of human development.
Sudad H Al-Obaidi
core   +1 more source

Hydrodynamic analysis of marine multibody systems by a nonlinear coupled model [PDF]

open access: yes, 2017
This study investigates the hydrodynamic performance of two freely floating or interconnected barges. A nonlinear decomposition model in the framework of potential flow is employed to simulate the wave-body interactions in the time domain.
Feng, X, Bai, W
core   +1 more source

Connections between optimal transport, combinatorial optimization and hydrodynamics [PDF]

open access: yesESAIM: Mathematical Modelling and Numerical Analysis, 2015
There are well-established connections between combinatorial optimization, optimal transport theory and Hydrodynamics, through the linear assignment problem in combinatorics, the Monge-Kantorovich problem in optimal transport theory and the model of inviscid, potential, pressure-less fluids in Hydrodynamics.
openaire   +2 more sources

Application of Improved Graph Theory in Planning of River and Lake System Connection

open access: yesRenmin Zhujiang, 2022
This paper first analyzes the river system characteristics,hydrodynamic conditions,and status quo of water environment in the tidal river network area.On this basis,a preliminary connection scheme is then drawn up by the concept of connectivity in the ...
JIANG Yu, ZHANG Qionghai, YAN Meng
doaj  

Three-dimensional earthquake analysis of roller-compacted concrete dams [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2012
Ground motion effect on a roller-compacted concrete (RCC) dams in the earthquake zone should be taken into account for the most critical conditions.
M. E. Kartal
doaj   +1 more source

Stochastic Variational Method for Viscous Hydrodynamics

open access: yesPhysics, 2022
In this short review, we focus on some of the subjects, related to J. Cleymans’ pioneering contribution of statistical approaches to the particle production process in heavy-ion collisions.
Takeshi Kodama, Tomoi Koide
doaj   +1 more source

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