Zobrazeno 1 - 10
of 12
pro vyhledávání: '"R. S. Wikramaratna"'
Autor:
R. S. Wikramaratna
Publikováno v:
Journal of Computational and Applied Mathematics. 233(9):2302-2311
Additive Congruential Random Number (ACORN) generators represent an approach to generating uniformly distributed pseudo-random numbers that is straightforward to implement efficiently for arbitrarily large order and modulus; if it is implemented usin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dfdd8f2736369b2d942e3f86773842c2
Autor:
R. S. Wikramaratna
Publikováno v:
Journal of Computational and Applied Mathematics. 216(2):371-387
This paper considers an approach to generating uniformly distributed pseudo-random numbers which works well in serial applications but which also appears particularly well-suited for application on parallel processing systems. Additive Congruential R
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::938d650396ef61ccb3111c941d9041ea
Autor:
R. S. Wikramaratna
Publikováno v:
Linear Algebra and its Applications. 437:1428
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f85213ec9e085540ac6a08714d25c18
https://doi.org/10.1016/j.laa.2012.05.025
https://doi.org/10.1016/j.laa.2012.05.025
Autor:
C. E. Reeve, R. S. Wikramaratna
Publikováno v:
Hydrological Sciences Journal. 29:327-337
Direct field estimation of recharge to groundwater presents a difficult problem. This has led to the investigation of indirect techniques of recharge estimation through mathematical models of groundwater flow. In this paper a method is proposed which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::277889499ecb3d81ed96bad6bc99de0a
https://doi.org/10.1080/02626668409490949
https://doi.org/10.1080/02626668409490949
Autor:
R. S. Wikramaratna
Publikováno v:
Water Resources Research. 21:985-989
The problem of abstraction from a well penetrating a two-layered confined aquifer, each layer being independently homogeneous, isotropic, and artesian, is considered. Three components of the total abstraction are identified: the contribution from wel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24edb9e3e6778b14da2b5ad9ab0e9a8c
https://doi.org/10.1029/wr021i007p00985
https://doi.org/10.1029/wr021i007p00985
Autor:
Peter J. Smith, R. S. Wikramaratna
Publikováno v:
Hydrological Sciences Bulletin. 26:113-136
The estimation of recharge and boundary flux is an important problem in deterministic groundwater modelling since these quantities are often difficult to measure directly in the field. A new method (inferred recharge) is proposed for this estimation,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4430bbf2a83167d68317a9ba9af4e17
https://doi.org/10.1080/02626668109490870
https://doi.org/10.1080/02626668109490870
Autor:
R. S. Wikramaratna
Publikováno v:
Journal of Computational Physics. 83:16-31
A new family of pseudo-random number generators, the ACORN (additive congruential random number) generators, is proposed. The resulting numbers are distributed uniformly in the interval [0, 1). The ACORN generators are defined recursively, and the (k
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b9f0ec2181af8b9585a06256d1252be
https://doi.org/10.1016/0021-9991(89)90221-0
https://doi.org/10.1016/0021-9991(89)90221-0
Autor:
E. H. Morel, R. S. Wikramaratna
Publikováno v:
Hydrological Sciences Journal. 27:63-77
A method is proposed for the simulation of groundwater flow in regional aquifers dissected by dykes of low permeability or by geological faults, which act as barriers to flow and which can have a considerable influence on the available groundwater re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9300e1a2d5f326a3e8af0a24d7c8a4b
https://doi.org/10.1080/02626668209491086
https://doi.org/10.1080/02626668209491086
Autor:
W. L. Wood, R. S. Wikramaratna
Publikováno v:
International Journal for Numerical Methods in Engineering. 19:1243-1251
This paper shows that the ‘streamline upwinding’ proposed by Hughes and Brooks1 is particularly simple to implement with the coupled nonlinear equations of the problem of salt water intrusion in a coastal aquifer. Because the mechanical dispersio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17588c02870bc639edfca8974f6f4256
https://doi.org/10.1002/nme.1620190811
https://doi.org/10.1002/nme.1620190811
Autor:
R. S. Wikramaratna
Publikováno v:
Water Resources Research. 20:1067-1074
The problem of abstraction from a well penetrating a multiple-layered aquifer, each layer being independently homogeneous, isotropic, and artesian, is considered. For the two-layered case with a constant abstraction rate, an analytical solution is de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86b3d724f800e42c3c8a602919399e1d
https://doi.org/10.1029/wr020i008p01067
https://doi.org/10.1029/wr020i008p01067