搜索结果: 1-15 共查到“工学 calculations”相关记录34条 . 查询时间(0.109 秒)
Two-dimensional implicit time-dependent calculations on adaptive unstructured meshes with time evolving boundaries
Two-dimensional implicit time-dependent calculations adaptive unstructured meshes evolving boundaries
2015/7/2
An implicit multigrid-driven algorithm for two-dimensional incompressible laminar viscous ows has been coupled with a solution adaptation method and a mesh movement method for boundary movement.Time-...
TWO-DIMENSIONAL IMPLICIT TIME DEPENDENT CALCULATIONS FOR INCOMPRESSIBLE FLOWS ON ADAPTIVE UNSTRUCTURED MESHES
TWO-DIMENSIONAL IMPLICIT DEPENDENT CALCULATIONS INCOMPRESSIBLE FLOWS ADAPTIVE UNSTRUCTURED MESHES
2015/7/2
An implicit muItigrid-driven algorithm for two-dimensional incompres ible laminar viscous flows is coupled with a mesh adaptation method to better capture the important features of the flow for time d...
Accelerating Three-Dimensional Navier-Stokes Calculations
Accelerating Three-Dimensional Navier-Stokes Calculations
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 New Implicit Algorithm with Multigrid for Unsteady Incompressible Flow Calculations
New Implicit Algorithm Multigrid Unsteady Incompressible Flow Calculations
2015/7/1
We present a new fully-implicit algorithm for unsteady incompressible flow calculations for both the Euler and Navier-Stokes equations. The new method couples the artificial compressibility ap-proach ...
Euler Multigrid Calculations Using a Gas-Kinetic Scheme
Euler Multigrid Calculations Gas-Kinetic Scheme
2015/7/1
St,arting from the BGI< model [I], anew gas-kinetic scheme is developed for computing st,ea.tly st,at,e so-lutions to the Eiiler eqitations. T11c discret.iaat,ioii has been implemented in a well devol...
Multigrid Unsteady Navier-Stokes Calculations with Aeroelastic Applications
Multigrid Unsteady Navier-Stokes Calculations Aeroelastic Applications
2015/7/1
An implicit approach to the solution of the unsteady two-dimensional Navier-Stokes equations is presented. After spatial discretization, the resulting set of coupled implicit non-linear equations is s...
Cascade Flow Calculations by a Multigrid Euler Method
Cascade Flow Calculations Multigrid Euler Method
2015/7/1
An explicit finite-volume method for the Euler equations with multigrid is presented for calculating cascade flows. The method is validated against theoretical test cases of the Hobson shock-free impu...
Multigrid Navier-Stokes Calculations for Three-Dimensional Cascades
Multigrid Navier-Stokes Calculations Three-Dimensional Cascades
2015/7/1
A vertex-based finite volume method for solving the three-dimensional compressible Reynolds-averaged Navier-Stokes equations is presented for calculating turbomachinery cascade flows. A discretization...
Multigrid Euler Calculations for Three Dimensional Cascades
Multigrid Euler Calculations Three Dimensional Cascades
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...
Applications of Dual Time Stepping to Fully Implicit Runge-Kutta Schemes for Unsteady Flow Calculations
Unsteady Flow Calculations Time Stepping
2015/6/18
Accordingly, a fast steady state solver is an essential building block for an implicit
scheme. This leads to a circular situation. We need an implicit scheme for fast
convergence to a steady state, ...
BIOMASS ESTIMATIONS AND CARBON STOCK CALCULATIONS IN THE OIL PALM PLANTATIONS OF AFRICAN DERIVED SAVANNAS USING IKONOS DATA
Biomass carbon inventory model west African oil palm derived the savanna images palm biomass rod model
2015/5/13
The primary goal of this research was to develop biomass models and to calculate carbon stock levels
of the West African oil palms (Elaeis guineensis) using multi-date IKONOS images. The study was
...
Reformulation of the Muffin-Tin Problem in Electronic Structure Calculations within the FEAST Framework
Electronic Structure FEAST Muffin-tin Density Functional Theory
2014/12/8
This thesis describes an accurate and scalable computational method designed to perform nanoelectronic structure calculations. Built around the FEAST framework, this method directly addresses the nonl...
Band Structure Calculations of Strained Semiconductors Using Empirical Pseudopotential Theory
electronic band structure empirical pseudopotential method semiconductor silicon nanowire strain supercell
2014/11/7
Electronic band structure of various crystal orientations of relaxed and strained bulk, 1D and 2D confined semiconductors are investigated using nonlocal empirical pseudopotential method with spin-orb...
Fluctuational electrodynamics calculations of near-field heat transfer in non-planar geometries: A brief overview
electrodynamics calculations near-field heat transfer non-planar geometries
2015/8/6
Near-field electromagnetic heat transfer is of interest for a variety of applications,including energy conversion, and precision heating, cooling and imaging of nanostructures.
CROWN DELINEATION INFLUENCE ON STANDING VOLUME CALCULATIONS IN PROTECTED AREA
Forestry LIDAR Inventory Crown Delineation Protected Area
2014/4/30
The aim of this study was to evaluate the automatically determined parameters of tree crowns, which are then used in two-phase inventory method of growing stock. Research was performed in forest stand...