Morcover, in much the same way as phase-shift migration, anothor phase-shift algorithm for Q inverse filtering is derived as well. Both numerical modeling and field data processing have comfirmed the effectiveness of these two methods.
The numerical modeling indicates that the guided wave along low-velocity layer is dispersive, which dispersion relation and phase velocity are closely related to the velocity structure andthickness of strata.
VOF method which can be used to trace free surface accurately without needing large computation time and storage, and the nonlinear k-s turbulence model which can be used to simulate anisotropic flow, are choosed to develop the numerical models.
The tomographic results of physical and numerical models prove that when the velocity contrast is greater than 30.0%, its tomographic result will be deformed significantly,when between 30.0% and 15.0%,it will be acceptable,and when less than 15.0%,it will be very good.
In order to obtain simultaneously and efficiently nonlinear wavetransformations in a harbor or coastal region, details of three dimensional flowaround structures and hydrodynamic loads of wave on marine structures,combining advantages of Boussinesq model and NS-VOF model, we unfolded thestudy of establishing Boussinesq / NS coupled numerical models.
Because the computation using 3D numerical models is time-consuming, the depth-averaged 2D numerical models are applied in the calculation of wave and current fields for saving computer memory and increasing the computing speed. The shear stress at the sea bed is calculated by solving the depth-integrated momentum equation over the thickness of the boundary layer near the bed.
Based on the basic principles of the micrometeorology of atmospheric boundary layers and vegetation canopy, a numerical model of the interaction between forest ecosystems and atmospheric boundary layers was developed.
Kinetic theory was introduced to establish a 3D kinetic numerical model for wavelike slug gas-solid flow in this paper.
The flows were also analyzed using a numerical model of the three-dimensional turbulent flow in the pumps near the peak efficiency point using the k-? turbulence model and the VOF cavitation model.
A three-dimensional physical and numerical model of the basic pulse tube refrigerator (PTR) was developed.
The numerical model of automaton behavior is helpful in applying algebraic tools to solve the functional behavior renewal problem.
The research topics include: numerical modeling of random seismic waves, probabilistic density evolution analysis for nonlinear structural responses, and seismic reliability analysis of large-scale lifeline networks.
Numerical modeling demonstrates that architectures of this kind are promising for acceleration of decoding in the digital communication systems.
The effectiveness of the suggested control law is shown with the aid of numerical modeling.
The problem of numerical modeling consisted in the construction of a system for the prediction of a change in the Gibbs free energy (Δ G) in the course of the formation of protein-protein and protein-ligand complexes.
Results of a numerical modeling experiment are given.
Using both analytical and numerical models of the collisionless anisotropic current sheet generated by the impinging flows of transient ions, we have studied the self-consistent solutions taking the plasma trapped in the sheet into account.
On the basis of observations, new numerical models of motion are constructed for all 96 outer satellites of Jupiter, Saturn, Uranus, and Neptune.
Exact solutions of problems of fluid inflow into a well with a vertical hydrofracture and their use in numerical models of flow
Adjustment of numerical models for gamma-ray spectra of samples when subtracting spectra of matrix elements in neutron activatio
Approaches to adjustment of numerical models for gamma-ray spectra of matrix elements are considered.
A numeric model for the kinetics of water vapor sorption on cellulosic reinforcement fibers
The representation of the surface pressure field in a two-dimensional hydrodynamic numeric model for the North Sea, the Skagerra
The experimental measurements were used to validate a numeric model of ablation in an accompanying paper.
The study is also trialling an US numeric model 'STOMP' (Subsurface Transport over Multiple Phases), to calculate daily water balance, to identify suitable plant species and to optimise thickness of the soil cover to be used in phytocapping.
A third approach involves the use of the numeric model to predict hydrochemical transport at each site.