Analytical solutions to the sinh-Poisson equation are discussed. This equation plays a role in the theory of vortex dynamics [Mallier and Maslowe, Phys. Fluids A 5, 1074 (1993)] and in the discussion of the most probable states of inviscid two-dimensional flows in fluids and plasmas [Montgomery and Joyce, Phys. Fluids 17, 1139 (1974)]. We present a family of double-periodic solutions on a rectangular grid. In limiting cases these solutions reproduce Mallier–Maslowe vortex streets and arrays of Greenhill’s point vortices.
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