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In physics, physical chemistry and engineering, fluid dynamics is a subdiscipline of fluid mechanics that describes the flow of fluids – liquids and gases.It has several subdisciplines, including aerodynamics (the study of air and other gases in motion) and hydrodynamics (the study of water and other liquids in motion).
Internal aerodynamics is the study of flow through passages in solid objects. For instance, internal aerodynamics encompasses the study of the airflow through a jet engine or through an air conditioning pipe. Aerodynamic problems can also be classified according to whether the flow speed is below, near or above the speed of sound.
A review from The Guardian labeled Blue Mind "popular psychology", calling it "a study in water and why it makes us happy". [5] A review from the Association for the Sciences of Limnology and Oceanography said " Blue Mind is an interesting read and presents a different perspective on water than we typically think about during the course of our ...
Mozart effect (education psychology) (popular psychology) (psychological theories) (Wolfgang Amadeus Mozart) Mpemba effect (phase changes) (physical paradoxes) (thermodynamics) Mullins effect (rubber properties) Multiple-effect humidification (drinking water) (water supply) (water treatment) Munroe effect (explosive weapons) (explosives)
In water or any other liquid, it is called a hydrodynamic force. Dynamic lift is distinguished from other kinds of lift in fluids. Aerostatic lift or buoyancy , in which an internal fluid is lighter than the surrounding fluid, does not require movement and is used by balloons, blimps, dirigibles, boats, and submarines.
The force on the vessel generated by a propeller is a function of the speed, volume and direction of the water jet leaving the propeller. Under certain conditions (e.g., when a ship moves through water) the Coandă effect changes the direction of a propeller jet, causing it to follow the shape of the ship's hull.
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Laminar and turbulent water flow over the hull of a submarine. As the relative velocity of the water increases turbulence occurs. Turbulence in the tip vortex from an airplane wing passing through coloured smoke . Smoke rising from a cigarette. For the first few centimeters, the smoke is laminar.