. . . . . . . . . . . . "Boussinesq" . . . . "Boussinesq type equation" . . "Boussinesq approximation (buoyancy)" . . . "reduced gravity" . "Boussinesq equations" . "Buoyancy-driven flow" . "Boussinesq approximation (buoyancy)" . "Boussinesq approximation" . . . "Oberbeck\u2013Boussinesq approximation" . "buoyancy" .