Multi-physics fluid atomizer and methods

A method of mixing fluids, comprising:

• providing a fluids mixing device comprising a housing and a nozzle removably mounted to a distal end of the housing, the housing including a mixing chamber, a first fluid inlet, and a plurality of inlet channels, the nozzle mounted including an impingement member extending proximally and defining an impingement surface at a proximal end thereof, a channel surrounding the impingement member, and at least one outlet orifice, the impingement surface arranged at an angle relative to a longitudinal axis of the mixing device, and the channel surrounding the impingement member being arranged in flow communication with the mixing chamber;
• delivering a first fluid into the mixing chamber at the first fluid inlet, the first fluid contacting the impingement surface;
• delivering a second fluid into the mixing chamber through the plurality of inlet channels, the plurality of inlet channels arranged at one or more angles relative to the longitudinal axis to create a swirl flow of the second fluid in the mixing chamber;
• mixing the first fluid with the second fluid in the mixing chamber and the channel surrounding the impingement member to form a mixture;
• delivering the mixture through the at least one outlet orifice at a location that is forward of the mixing chamber to form a spray plume of the mixture.