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Article
Spatial Distribution of Internal Tidal Waves on the Northeastern Shelf of Sakhalin
The transformation of a multicomponent barotropic tide in the Sea of Okhotsk is considered in the framework of fully nonlinear nonhydrostatic calculations. The data on the tidal model and parametrizable bottom...
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Article
The Use of the NAMI-DANCE Computational Complex on the Problem of Tsunami Waves
Mathematical models that are applicable to the simulation of the generation and propagation of tsunami waves from different sources, that is, underwater earthquakes, submarine landslides, and meteotsunamis, ar...
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Article
Collaborative Computing Methods for One-Dimensional and Three-Dimensional Problems of Computational Fluid Dynamics
This article presents a method of collaborative one-dimensional (1D)–three-dimensional (3D) modeling of computational fluid dynamics. The method is based on the simultaneous calculation of 3D and 1D areas and ...
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Article
Self-Similar Acoustic Waves in the Media with a Power-Law Hysteresis Nonlinearity
We present the results of the studies of propagation of longitudinal acoustic waves in the media with a power-law hysteresis nonlinearity. Exact analytical solutions for the self-similar periodic waves propaga...
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Article
An Efficient Parallel Implementation of the SIMPLE Algorithm Based on a Multigrid Method
This paper deals with a parallel implementation of the SIMPLE (Semi-Implicit Method for Pressure-Linked Equations) algorithm to numerically solve the Navier–Stokes system of equations for viscous incompressibl...
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Article
Transformation of the First Mode Breather of Internal Waves above a Bottom Step in a Three-Layer Fluid
We consider the problem of the propagation of a localized internal perturbation in the form of an oscillating wave packet (breather) of the first mode in a three-layer fluid with an uneven bottom in the form o...
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Article
Tsunami Hazard Assessment on the Egyptian Coast of the Mediterranean
Tsunami forecast possibilities for areas with a small base of historical tsunamis have been discussed using the Probabilistic Tsunami Hazard Assessment (PTHA) method, which is based on a statistical analysis o...
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Article
Influence of Nonlinear Interaction on the Evolution of Waves in a Shallow Basin
The influence of nonlinear interaction of oppositely directed nonlinear waves in a shallow basin is studied theoretically and numerically within the nonlinear theory of shallow water. It is shown that this int...
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Article
Simulation of Body Motion in Viscous Incompressible Fluid
The paper presents a description of a method for simulation of the motion of bodies in viscous incompressible fluid with the use of a technique of computation on overset grids (“chimera” technique). Equations ...
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Article
The Use of Wall Functions for Simulating the Turbulent Thermal Boundary Layer
An important problem in the numerical simulation of turbulent heat exchange in fluids is accurate prediction of hydrodynamic characteristics of the flow in the boundary layer, which requires a fine grid near r...
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Article
Generation of the 2018 Tsunami on Sulawesi Island: Possible Sources
Numerical simulation of a tsunami from September 28, 2018, on Sulawesi Island (Indonesia) is carried out. It is shown that the observed distribution of tsunami heights within a large area can be explained by t...
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Article
The Moneron Tsunami of September 5, 1971, and Its Manifestation on the Sakhalin Island Coast: Numerical Simulation Results
Observation data on the September 5, 1971, earthquake that occurred near the Moneron Island (Sakhalin) have been analyzed and a numerical simulation of the tsunami induced by this earthquake is conducted. The ...
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Chapter and Conference Paper
Autonomous Mobile Robotic System for Coastal Monitoring and Forecasting Marine Natural Disasters
The paper presents the steps of creating an experimental prototype of an autonomous mobile robot for coastal monitoring and forecasting marine natural disasters. These systems of continuous coastal monitoring ...
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Chapter and Conference Paper
Development of a Multifunctional All-Terrain Vehicle Equipped with Intelligent Wheel-Drive System for Providing Increased Level of Energy Efficiency and Improved Fuel Economy
The use of hydrostatic transmission driveline as a part of multi-wheeled all-terrain vehicles on ultralow pressure tires allows achieving the efficient power distribution for driving wheels depending on the co...
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Article
Method for taking into account gravity in free-surface flow simulation
A numerical algorithm that correctly takes into account the force of gravity in the presence of density discontinuities is constructed using unstructured collocated grids and splitting algorithms based on SIMP...
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Article
A new Galeopid (Anomodontia, Galeopidae) from the Permian of Eastern Europe
A new anomodont genus and species, Parasuminia ivakhnenkoi sp. nov. (Galeopidae), from the Sundyr-1 locality (Upper Severodvinian Substage, Upper Permian) is described. Based on morphological analysis of tooth we...
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Article
Structure of currents in the soliton of an internal wave
The characteristics of strongly nonlinear solitary internal waves (solitons), which are calculated by the nonlinear numerical model of the Massachusetts Institute of Technology (MITgcm), are studied. The model...
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Article
Numerical modeling of the free rise of an air bubble
The results of a numerical investigation of the dynamics of a single air bubble rising in water are presented. The bubbles, 1, 2.5, 3, 5, 8, and 10 mm in diameter, are considered. An analysis is based on the n...
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Article
Effect of the angle of water entry of a body on the generated wave heights
The results of a numerical investigation of the angle of water entry of a body on the parameters of the waves generated in the near zone are presented. The disturbed region dimensions are studied and the laws ...
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Article
The possibility of tsunami in the Sea of Okhotsk caused by deep-focus earthquakes
The earthquake that occurred on May 24, 2013, in the basin of the Sea of Okhotsk with a magnitude of 8.3 was the strongest in this region. We have modeled a possible tsunami caused by such an earthquake. The s...
