sph-blitz - 源码 - 源码 - 免费下载

sph-blitz

文件大小： unknow

源码售价： 5 个金币积分规则积分充值

资源说明：2D multiphase SPH/SDPD code

Introduction

2D multiphase SPH/SDPD code (authors: Xiangyu Hu, Sergey Litvinov, Oliver Oberinger
Martin Bernreuther, Andreas Mattes)

Build

$ (cd src && make)
$ (cd example && make)


`make test` runs [tests](test/) (requres atest).

Cases

Run fluctuating liquid, Couette flow, and elliptic drop:
`example/sdpd cases/thermal`, `example/sdpd cases/coette`,
`example/sdpd cases/ellipse`

Configuration file

To use the initial condition file

    INITIAL_CONDITION <1/0>

The level of statistics output

    DIAGNOSE 2

number of cells in x and y direction

    CELLS  

size of one cell

     CELL_SIZE 5.0e-3

support length

     SMOOTHING_LENGTH 5.0e-3

the number of particle in one direction in a cell

     CELL_RATIO	3

the basic of units (used for dimensionless calculations)

     DIMENSION    

simulation time

     TIMING   

gravity force vector

     GRAVITY  

Boundary conditions (order is as follow X0, X1, Y0, Y1)
type code
1: periodic
0: wall

    BOUNDARY
    
    ...

    NUMBER_OF_MATERIALS 

    MATERIALS
     					
    (numb_mat lines)

    FORCES
    					
    (numb_mat*numb_mat lines, one for each material pair)

`sigma` is a surface tension coefficient

Initial condition file

    
    
    ...
           
    ...

[example](cases/couette.rst)

Simulations

Couette flow simulation

    $ example/sdpd  cases/couette

Water drop in air starting from [an initial condition file](cases/ellipse.cfg)

    $ example/sdpd cases/ellipse

Output

Output is in ASCII tecplot files, to convert to punto format run

    $ scripts/2punto outdata

Visualization

    $ punto -D 2 -V -s 50 punto.dat
    $ punto -D 2 -c 4 -B 0:0:0.04:0.04 -G -0.2:0.2 punto.dat

in gnuplot shell

    $ plot n=1, 'punto.dat' u 2:3 every :::n::n
    $ plot n=10, A=250.0, 'punto.dat' u 2:3 every :::n::n+5, A*x*(L-x)

Images

Poiseuille flow



Ellipsoid water drop in air



Fluctuating liquid



References

- Hu, Xianguy, and Nikolaus A. Adams. "A multi-phase SPH method for
  macroscopic and mesoscopic flows." Journal of Computational Physics
  213.2 (2006): 844-861. https://doi.org/10.1016/j.jcp.2005.09.001

- gnuplot http://www.gnuplot.info

- punto http://punto.sourceforge.net

- tecplot http://paulbourke.net/dataformats/tp

- atest https://github.com/slitvinov/atest

- SPH (smoothed-particle hydrodynamics), SDPD (smoothed dissipative particle dynamics)

部分文件列表（点击文件名可查看文件内容）

					
									本源码包内暂不包含可直接显示的源代码文件，请下载源码包。