搜索结果: 196-210 共查到“理学 Simulation”相关记录512条 . 查询时间(0.065 秒)
Basic rockfall simulation with consideration of vegetation and application to protection measure
Basic rockfall simulation consideration vegetation application protection measure
2009/12/10
The estimation of risk due to rockfall is often done empirically. As a rational and effective method towards performance-based design of protection measures, a three-dimensional simulation method help...
Numerical simulation of runoff from extreme rainfall events in a mountain water catchment
Numerical simulation extreme rainfall events a mountain water catchment
2009/12/9
A numerical model for unsteady shallow water flow over initially dry areas is applied to a case study in a small drainage area at the Spanish Ebro River basin. Several flood mitigation measures (refor...
Simulation of the effect of defence structures on granular flows using SPH
defence structures granular flows SPH
2009/12/9
This paper presents the SPH (Smoothed Particles Hydrodynamics) numerical method adapted to complex rheology and free surface flow. It has been developed to simulate the local effect of a simple obstac...
Land-atmosphere interactions in an high resolution atmospheric simulation coupled with a surface data assimilation scheme
Land-atmosphere interactions high resolution atmospheric simulation data assimilation scheme
2009/12/8
A valid tool for the retrieving of the turbulent fluxes that characterize the surface energy budget is constituted by the remote sensing of land surface states. In this study sequences of satellite-de...
The tropical marine boundary layer under a deep convection system: a large-eddy simulation study
the tropical marine boundary layer a deep convection system a large-eddy simulation study
2009/12/2
The tropical marine PBL under the influence of a deep convection system is investigated using a large-domain LES that resolves a wide range of scales, from mesoscale cloud clusters down to energ...
An equivalent fluid/equivalent medium approach for the numerical simulation of coastal landslides propagation: theory and case studies
An equivalent fluid/equivalent medium approach the numerical simulation coastal landslides propagation
2009/12/31
Coastal and subaqueous landslides can be very dangerous phenomena since they are characterised by the additional risk of induced tsunamis, unlike their completely-subaerial counterparts. Numerical mod...
Recent observations from satellites crossing regions of magnetic-field-aligned electron streams reveal solitary potential structures that move at speeds much greater than the ion acoustic/thermal velo...
Three-dimensional simulation of the electromagnetic ion/ion beam instability:cross field diffusion
Three-dimensional simulation electromagnetic ion/ion beam instability cross field diffusion
2009/11/13
In a system with at least one ignorable spatial dimension charged particles moving in fluctuating fields are tied to the magnetic field lines. Thus, in one-and two-dimensional simulations cross-field ...
Numerical simulation of ion dynamics in the magnetotail magnetic turbulence:On collisionless conductivity
Numerical simulation ion dynamics magnetotail magnetic turbulence collisionless conductivity
2009/11/13
The ion dynamics in the distant Earth's magnetotail is studied in the case that a cross tail electric field and reconnection parity magnetic turbulence are present in the neutral sheet. A test particl...
3D reconnection due to oblique modes:a simulation of Harris current sheets
3D reconnection oblique modes Harris current sheets
2009/11/13
Simulations in three dimensions of a Harris current sheet with mass ratio, mi/me = 180, and current sheet thickness, pi/L = 0.5, suggest the existence of a linearly unstable oblique mode, which is ind...
A Monte Carlo simulation of magnetic field line tracing in the solar wind
Monte Carlo simulation magnetic field line solar wind
2009/11/12
It is well known that the structure of magnetic field lines in solar wind can be influenced by the presence of the magnetohydrodynamic turbulence. We have developed a Monte Carlo simulation which trac...
A non-linear and stochastic response surface method for Bayesian estimation of uncertainty in soil moisture simulation from a land surface model
response surface method Bayesian estimation soil moisture simulation land surface model
2009/11/11
This study presents a simple and efficient scheme for Bayesian estimation of uncertainty in soil moisture simulation by a Land Surface Model (LSM). The scheme is assessed within a Monte Carlo (MC) sim...
Basic rockfall simulation with consideration of vegetation and application to protection measure
Basic rockfall simulation vegetation and application protection measure
2009/12/31
The estimation of risk due to rockfall is often done empirically. As a rational and effective method towards performance-based design of protection measures, a three-dimensional simulation method help...
GEOFLOW:simulation of convection in a spherical shell under central force field
GEOFLOW simulation of convection spherical shell central force field
2009/11/9
Time-dependent dynamical simulations related to convective motion in a spherical gap under a central force field due to the dielectrophoretic effect are discussed. This work is part of the preparation...
The representation of dust transport and missing urban sources as major issues for the simulation of PM episodes in a Mediterranean area
dust transport missing urban sources major issues PM episodes Mediterranean area
2009/11/9
Due to its adverse effects on human health, atmospheric particulate matter (PM) constitutes a growing challenge for air quality management. It is also a complex subject of study. The understanding of ...