Editing Cavitation (section)

===Aerodyamic cavitation===
Although predominant in liquids, cavitation exists to an extent in gas as it has fluid dynamics at high speeds.<ref>{{Cite web|url=https://www.researchgate.net/figure/Asymmetric-electrode-arrangement-of-an-aerodynamic-plasma-actuator_fig1_253041135|title=Asymmetric electrode arrangement of an aerodynamic plasma actuator. &#124; Download Scientific Diagram}}</ref><ref>{{Cite web|url=https://www.researchgate.net/publication/301889798|title=Simultaneous Investigation of Flexibility and Plasma Actuation Effects on the Aerodynamic Characteristics of an Oscillating Airfoil}}</ref> For example, a [[bullet]] with a flat tip moves faster underwater as it creates cavitation compared to a bullet with a sharp tip. A [[dune]] shape is very useful for managing aerodynamic cavitation.  The shape of a dune provides minimal resistance to the wind. With small dunes installed on the surfaces of aircraft and other high speed vehicles, friction against the air decreases by several times. The dune surface pushes the air upwards, underneath and behind areas where the air pressure drops, reducing friction. The dune may increase frontal resistance, but that will be compensated for by a decrease in the total friction area, as also happens with an underwater bullet. As a result, the speed of the aircraft or vehicle will increase significantly.<ref>{{cite web | url=https://contest.techbriefs.com/2019/entries/aerospace-and-defense/9431#:~:text=Contrary%20to%20logic%20and%20general,the%20bullet%20surface%20very%20slightly | title=Aerodynamic Cavitation for Aircraft }}</ref>