In the oceans, meanwhile, the emphasis was on attempting to understand the physical processes that accounted for mass and heat transport in cases such as the Gulf Stream and the circulations of the ocean basins. Weather forecasting was based on an understanding of the prevailing instability of large-scale, mid-latitude phenomena resulting from an analysis of the Navier-Stokes fluid dynamic equations. Until the 1980s, atmospheric science had concentrated on the theory and practice of weather forecasting, which involved a time scale of 6 to 10 days. ![]() This progress will come from a combination of theoretical modeling, computer simulation, and direct measurement, each drawing on the tools of physics and each conducted by researchers schooled in the methods of physics. Will lead to much greater predictive capability and earlier warning than are available today. The ocean-atmosphere system, environmental monitoring and improvement, and energy production and the environment are three areas where an understanding of the basic physics has played a central role and where it is crucial for further progress. To understand the complexities of the environment and to address problems effectively, the underlying physics must be combined with chemistry, geology, atmospheric and oceanic science, and biology. Most of the impact of humans on the environment revolves around the need for energy production. Climate is shaped by how the energy of the Sun affects movement of the atmosphere and oceans and how they in turn distribute energy around the world. Much of physics is the study of energy and its transformation, and energy lies at the heart of important environmental issues. This understanding is essential to stewardship of the environment: for addressing problems like urban air pollution and lake acidification and for dealing with natural hazards such as floods and hurricanes. Physics also provides a basis for understanding the dynamic interactions between the atmosphere and the oceans and for the study of short-term weather and long-term climate change. These topics, along with others aspects of the physics of Earth, are discussed in Chapter 2, “ It is essential for understanding the deep structure of Earth and the natural phenomena that affect Earth's surface, such as earthquakes and volcanic eruptions. Isma Khabis on Problem in using Hypoplastic model for sand in Abaqus.Physics lies at the core of the earth sciences.Kassem Dib on Problem in using Hypoplastic model for sand in Abaqus.Héctor Montenegro on Extended Mohr–Coulomb (EMC).Francisco Mendez on Presentations from Prague Geotechnical Days 2023 including 29th Prague Geotechical Lecture by Yannis Dafalias.Presentation from Prague Geotechnical Days 2023 Najser (2023) Numerical analyses of monopiles under cyclic lateral load: from simple 2D to complex 3D approaches. As well as the development of the material models used in the analysis, space and time discretization of the governing equations, computer implementation and its optimization are relevant to this special issue. This special issue is intended for contributions concerning one or more following topics: hydro‐mechanical thermomechanical and hydro‐thermo‐mechanical analysis of geotechnical structures. Coupling the mechanical behaviour, transport of moisture, heat and other phenomena may be at a different level. In more complicated cases, transport of the heat and chemical behaviour must be added and the analysis becomes truly multi‐physics. Except for simple mechanical analysis, the transport of moisture is an inseparable part of the analysis of geotechnical structures. Theoretical mathematical models of porous mediums consisting of solid, liquid and gas phases have to be used. ![]() Numerical simulation of multi‐physics phenomena in geotechnical structuresĬomplete and thorough analysis of geotechnical structures, requires various complex materials models with internal structures, which cannot be described by the classical continuum.
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