Spatial statistics of stochastic fiber networks

被引:33
作者
Dodson, CTJ
Sampson, WW
机构
[1] UMIST, Dept Math, Manchester M60 1QD, Lancs, England
[2] UMIST, Dept Paper Sci, Manchester M60 1QD, Lancs, England
关键词
3D fiber networks; porosity; fiber suspensions; clumping; fiber geometry; network geometry;
D O I
10.1023/A:1004597121797
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
From the known statistics of fiber-fiber contacts in random fiber networks, an analytic estimate is obtained for the variance of local porosity in random fiber suspensions and evolving filtrate networks. The variance of local porosity, and hence the distribution of projected areal density, seem to depend on fiber geometry only through the cube of mean diameter. Also, the coefficient of variation of local flow rate perpendicular to the plane of the pad is, to a first approximation, independent of the mode of flow. Analytic estimates are obtained also for the effect of fiber clumping on the variance of local porosity of pads for small inspection zones.
引用
收藏
页码:447 / 458
页数:12
相关论文
共 16 条
[1]  
CORTE H, 1982, HDB PAPER SCI, pCH6
[2]  
CORTE H, 1966, T 3 FUND RES S BPBMA, P981
[3]   Modeling a class of stochastic porous media [J].
Dodson, CTJ ;
Sampson, WW .
APPLIED MATHEMATICS LETTERS, 1997, 10 (02) :87-89
[4]  
Dodson CTJ, 1996, J PULP PAP SCI, V22, pJ165
[6]  
DODSON CTJ, 1971, J ROY STAT SOC B, V33, P88
[7]  
Dodson CTJ, 1996, TAPPI J, V79, P211
[8]  
FARNOOD RR, 1995, J PULP PAP SCI, V21, pJ348
[9]  
Farnood RR., 1997, NORD PULP PAP RES J, V12, P86, DOI [10.3183/npprj-1997-12-02-p086-089, DOI 10.3183/NPPRJ-1997-12-02-P086-089]
[10]  
GORRES J, 1986, TAPPI J, V69, P104