Gl. Vasconcelos, EXACT-SOLUTIONS FOR N STEADY FINGERS IN A HELE-SHAW CELL, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 58(5), 1998, pp. 6858-6860
Exact solutions are reported for N steady fingers moving with a consta
nt speed U in a Hele-Shaw channel in the absence of surface tension. [
S1063-651X(98)12610-7].