Comment on "Free surface Hele-Shaw flows around an obstacle: a random walk simulation".
It is shown that the computer simulations of Hele-Shaw flows around a wedge reported by Bogoyavlenskiy and Cotts [Phys. Rev. E 69, 016310 (2004)] do not reproduce with a high degree of accuracy the exact solutions known for this problem.
Vasconcelos
Giovani L
GL
Laboratório de Física Teórica e Computacional, Departamento de Física, Universidade Federal de Pernambuco, 50670-901, Recife, Brazil.