Description: AITCH是一个FORTRAN90程序解决H形区域的流场计算。
更具体地说， AITCH旨在模拟不可压缩非稳态的二维下的Navier Stokes方程。
这项计划只是初步素描如何划分区域的方式，你可按照自己的内容需要进行修改，以产生有限元解决方案。-AITCH is a FORTRAN90 program which solves for flow in an H-shaped region.
More specifically, AITCH is intended to model the geometry needed for a time-dependent flow of an incompressible fluid in a 2D region, under the Navier Stokes equations.
This program is simply an initial sketch of how to divide up the the region in a way that makes it possible to generate a consistent account of the nodes and elements needed to implement a finite element representation of the solution.
Platform: |
Size: 40960 |
Author:maxwang |
Hits:
Description: 下面我们将给出一些基于Galerkin有限元法的微型泵模拟结果，模拟过程在商业软件COMSOL Multiphysics 3.2中实现。数值求解采用压力修正算法——SIMPLE，它首先假设一个压力场，然后通过求解不可压缩流动的Navier-Stokes方程得到速度场。这些速度不需要满足Possion型连续方程，所以对压力场的修正也带来速度场的修正，最终满足质量守恒。求解速度场的同时计算电势场方程。这会得到Lorentz力，然后将其反馈回N-S方程并作为体积力处理。连续耦合Lorentz力和速度场直到Newton迭代收敛。
-Below we will give some micro-pump simulation results based on the Galerkin finite element method, the simulation process in the commercial software COMSOL Multiphysics 3.2. The numerical solution of pressure correction algorithm- the SIMPLE, it begins by assuming a pressure field, and then by solving the incompressible Navier-Stokes equations, the velocity field. These velocities do not need to satisfy the continuity equation of Possion type pressure field correction to bring the amendment of the velocity field, and ultimately to meet the conservation of mass. Solving the velocity field at the same time to calculate the potential field equations. This will be the Lorentz force, and then fed back to the NS equations and processing as a volume force. Continuous coupling of the Lorentz force and the velocity field until the Newton iteration convergence. Platform: |
Size: 3568640 |
Author:cichin |
Hits:
Description: This program solve the Navier-Stokes (NS) equations using the C C Alternating Direction Implicit (ADI) method. The solution is spatially C C second order accurate.-This program solve the Navier-Stokes (NS) equations using the CC Alternating Direction Implicit (ADI) method. The solution is spatially CC second order accurate. Platform: |
Size: 3072 |
Author:Z.T. |
Hits:
Description: 无网格法在数值计算中不需要生成网格，而是按照一些任意分布的坐标点构造插值函数离散控制方程，就可方便地模拟各种复杂形状的流场。该法大致可分成两类：一类是以Lagrange方法为基础的粒子法（Particle method），如光滑粒子流体动力学（Smoothed particle hydrodynamics，简称SPH）法，和在其基础上发展的运动粒子半隐式（Moving－particle semi－implicit，简称MPS）法等；另一类是以Euler方法为基础的无格子法（Gridless methods），如无格子Euler/N—S算法（Gridless Euler/Navier-Stokes solution algorithm）和无单元Galerkin法（Element free Galerkin，简称EFG）等。(In the numerical calculation, meshless method does not need to generate grid, but constructs interpolation function discrete control equation according to some arbitrarily distributed coordinate points, which can easily simulate various complex shapes of flow field.) Platform: |
Size: 1024 |
Author:你叫我吧 |
Hits:
Search - Solution Navier Stokes