#fluid mechanics

• Aero — As a noun or adjective, it represents a short, colloquial, or commercial form for aviation, aeronautics, aerodynamics, or air transport. As a scholarly combining form (prefix), it originates from the Greek 'aer' and serves to form scientific, technical, or medical terms, indicating a direct connection with air, atmosphere, gases, or aircraft.
• Aerodyne — A general or historical technical term used to designate any aircraft heavier than air (such as airplanes, helicopters, or gliders), whose support and lift in the atmosphere are provided exclusively by aerodynamic forces generated by the relative motion of its lifting surfaces (wings, rotors) in contact with the airflow. It represents the opposite of aerostats (balloons, zeppelins), which float based on Archimedean buoyancy.
• Aerodynamics — A branch of fluid mechanics that studies the laws governing the motion of air or other gases, as well as the forces exerted by them on solid bodies in relative motion to them. This scientific field governs the design of aircraft, rockets, and terrestrial vehicles by optimizing lift and drag forces.
• Airbrush — A small, high-precision spray gun resembling a pen, used in visual arts, photo retouching, decorative painting, or cosmetics; it operates by atomizing liquid paint using a jet of compressed air, allowing the application of extremely fine layers and the creation of perfectly smooth color gradients.
• Aeromechanics — A branch of fluid mechanics that studies the equilibrium and motion of air or other gases, as well as the mechanical behavior of solid bodies immersed in them or in relative motion to them. This major scientific field is structurally subdivided into aerostatics (the study of gases in equilibrium) and aerodynamics (the study of gases in motion).
• Aerometric — Relating to aerometry, concerning aerometry; referring to the measurement of density, weight, flow, or other physical properties of air and gases. The term describes laboratory apparatus, instruments, or methods used in the densimetric analysis of gaseous fluids.
• Aerosolization — The act of aerosolizing and its result; a physical, mechanical, or experimental process through which a liquid or solid substance is transformed into microscopic particles suspended in air or a gaseous medium. In medicine, it represents the fundamental operating technique of nebulizers to allow efficient drug delivery directly into the pulmonary alveoli.
• Aerostatics — A branch of fluid mechanics and physics that studies the equilibrium conditions of air and other gases, as well as of solid bodies immersed within them. In an applied sense, it represents the science, technology, and history of designing, constructing, and navigating lighter-than-air aircraft, grounded in hydrostatic laws transposed to the atmospheric environment.
• Aerothermodynamics — An advanced branch of fluid mechanics and thermodynamics that studies the behavior, physical properties, and thermal phenomena of airflows moving at extremely high speeds (supersonic and hypersonic). This structural science analyzes the complex interactions between aerodynamic forces and the intense heat transfer generated by gas friction, being essential for the design of rockets, space shuttles, and atmospheric re-entry vehicles.
• Agitator — A person who instigates disorder, rebellion, or public unrest, or who carries out intense political propaganda; in a technical sense, it represents a mechanical element (blade, shaft, propeller) or an apparatus used to mix fluids, solutions, or industrial batches. As an adjective, it denotes a factor causing physical agitation or spiritual disturbance.
• Sheering — The act of sheering, yawning, or swerving and its result; a sudden, involuntary deviation or oscillation of a vessel or aircraft from its straight course due to external factors or structural errors.
• Whirlpool — A circular and turbulent movement of a fluid, primarily encountered in hydrography as a powerful water whirlpool forming in rivers, in areas where the main current strikes an obstacle, a bend in the bank, or undergoes a sudden shift in depth. This structural hydrodynamic phenomenon creates a downward suction zone dangerous for navigation and swimming, generated by the intersection of water filaments with different speeds and directions.
• Sprinkling — The act of sprinkling or spraying and its result; a structural method of artificial irrigation of crops or green spaces by spraying water in the form of fine droplets, mimicking natural rain, using pressurized technical installations (sprinklers); (in an industrial or pharmaceutical sense) the controlled scattering of a liquid or fine powder on a surface.
• Sprinkled — Having undergone the process of sprinkling or spraying; moistened, watered, or sprayed by means of a stream of fine liquid droplets; (about lands or plants) structurally irrigated by sprinkling; (about substances) scattered or applied in the form of aerosols or fine powders onto a surface.
• Suction — The act of aspirating, suctioning, or drawing in and its result; a structural process whereby a fluid (gas or liquid) or fine particles are drawn into an enclosed space by creating a pressure differential or a partial vacuum; (in phonetics) an intense air emission accompanying the articulation of a sound (aspirated consonant).
• Self-priming — The mechanical and hydraulic capacity or process whereby a pump or an engine automatically evacuates air from its suction line and fills itself with the liquid to be pumped, initiating normal operation without requiring prior manual priming of the circuit by an operator.
• Self-sealing — A structural property of certain materials, gaskets, tires, or mechanical systems to hermetically block or close a crack, puncture, or fluid loss through their own physical-chemical reactions or internal pressures, without manual intervention.
• Autosiphon — A mechanical or hydraulic device designed to automatically prime, trigger, or sustain a siphoning effect (the drainage of a liquid through a curved tube from a higher container to a lower one) without requiring manual suction or external pumping. This structural system typically operates based on fluid level variations, being used in sanitary engineering, drainage installations, or aquarium management.