title: Comment on "Free surface Hele-Shaw flows around an obstacle: a random walk simulation".
abstract: 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.
authors.affiliation: Laboratório de Física Teórica e Computacional, Departamento de Física, Universidade Federal de Pernambuco, 50670-901, Recife, Brazil.
authors.forename: Giovani L
authors.initials: GL
authors.lastname: Vasconcelos