A burble is what jumpers call the dead air space over a face to Earth jumper's back.
Engineers use the term wake.
Wakes or burbles are common to all objects moving through a fluid or fluids moving past objects. A wake region will exist whenever there is relative motion between the fluid and object. Fluid dynamics doesn't depend on whether an object moves through a fluid or whether the fluid flows past an object. Aerodynamics refers to moving air, as opposed to hydrodynamics that studies moving water and fluid dynamics that studies any kind of moving fluid. The size and shape of wakes depend on the fluid's viscosity, the relative speed between the fluid and object and the object's shape and size.