搜索结果: 1-12 共查到“航空、航天科学技术 3-Dimensional”相关记录12条 . 查询时间(0.062 秒)
A THTEE-DIMENSIONAL VARIATIONAL ASSIMILATION SCHEME FOR SATELLITE AOD
AOD, Aerosol, Data assimilation, Chemical species, WRF/Chem
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2018/5/15
A three-dimensional variational data assimilation scheme is designed for satellite AOD based on the IMPROVE (Interagency Monitoring of Protected Visual Environments) equation. The observation operator...
A SATELLITE IMAGE CLASSIFICATION APPROACH BY USING ONE DIMENSIONAL DISCRIMINANT ANALYSIS
Satellite Image Image Classification Linear Discriminant Analysis Dimension Reduction
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2018/4/18
The classification problem in the image processing field is an important challenge, so that in the process image pixels are separated into previously determined classes according to their features. Th...
A SATELLITE IMAGE CLASSIFICATION APPROACH BY USING ONE DIMENSIONAL DISCRIMINANT ANALYSIS
Satellite Image Image Classification Linear Discriminant Analysis Dimension Reduction
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2018/5/8
The classification problem in the image processing field is an important challenge, so that in the process image pixels are separated into previously determined classes according to their features. Th...
a three dimensional dominant scatterer map extends the dem information in urban areas
Urban DEM InSAR Permanent Scatterer Persistent Scatterer Interferometry
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2015/9/1
The generation of digital elevation models (DEMs) by space-born InSAR is a well-established remote sensing technique. Several application projects as for instance the shuttle radar topography mission ...
A p-multigrid spectral difference method for two-dimensional unsteady incompressible Navier–Stokes equations
Spectral difference method Artifi cial compressibility method Dual time stepping p-Multigrid
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2015/7/3
This paper presents the development of a 2D high-order solver with spectral difference method for unsteady incompressible Navier–Stokes equations accelerated by a p-multigrid method. This solver is de...
A Systematic Study on the Impact of Dimensionality for a Two-Dimensional Aerodynamic Optimization Model Problem
Systematic Study Impact Dimensionality Two-Dimensional Aerodynamic Optimization Model Problem
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2015/7/3
A model problem, based on the NACA0012 airfoil, is studied. The thickness distribution of the symmetric NACA0012 airfoil is optimally approximated with a 4th-order Bezier curve. This best-fit ap...
In Pursuit of Grid Convergence for Two-Dimensional Euler Solutions
Grid Convergence Two-Dimensional Euler Solutions
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2015/7/3
Grid-convergence trends of two-dimensional Euler solutions are investigated. The airfoil geometry under study is based on the NACA0012 equation. However, unlike the NACA0012 airfoil, which has a blunt...
An improved gas-kinetic BGK finite-volume method for three-dimensional transonic flow
Navier–Stokes equations BGK equation Kinetic scheme Finite-volume scheme
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2015/7/2
During the past decade gas-kinetic methods based on the BGK simplification of the Boltzmann equation have been employed to compute fluid flow in a finite-difference or &#...
Accelerating Three-Dimensional Navier-Stokes Calculations
Accelerating Three-Dimensional Navier-Stokes Calculations
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2015/7/1
This paper addresses the widely observed breakdown in multigrid performance for turbu lent Navier-Stokes computations on highly stretched meshes. Extending previous work in two dimensions, two alterna...
A Two-Dimensional Multigrid-Driven Navier-Stokes Solver for Multiprocessor Architectures
Two-Dimensional Multigrid-Driven Navier-Stokes Solver Multiprocessor Architectures
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2015/7/1
A two-dimensional unsteady Navier-Stokes solver has been parallelized using a domain decomposition approach and the PVM message passing library. Several options for the treatment of multigrid and impl...
Multigrid Euler Calculations for Three Dimensional Cascades
Multigrid Euler Calculations Three Dimensional Cascades
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2015/7/1
A fast and accurate numerical method for solving the three-dimensional Euler equations is applied to cascade calculation. Test cases of a VKI turbine cascade and a low pressure turbine cascade are pre...
Suppression of vortex-induced forces on a two-dimensional circular cylinder by a short and thin splitter plate interference
circular cylinder splitter plate interference
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2015/6/23
This paper briefly reviews bluff body aerodynamics and focuses mainly on
the use of short and thin splitter plates to interfere with the vortex wakes and
suppress vortex-induced forces (VIF). The ...