![]() ![]() Some of the simplifications allow some simple fluid dynamics problems to be solved in closed form. The equations can be simplified in a number of ways, all of which make them easier to solve. The fact that the fluid is made up of discrete molecules is ignored. However, the continuum assumption assumes that fluids are continuous, rather than discrete.Ĭonsequently, it is assumed that properties such as density, pressure, temperature, and flow velocity are well-defined at infinitesimally small points in space and vary continuously from one point to another. These are based on classical mechanics and are modified in quantum mechanics and general relativity.įluids are composed of molecules that collide with one another and solid objects. This is still reflected in names of some fluid dynamics topics, like magnetohydrodynamics and hydrodynamic stability, both of which can also be applied to gases. It has several subdisciplines, including aerodynamics (the study of air and other gases in motion) and hydrodynamics (the study of liquids in motion). The truncation on the right, known as a Kammback, also prevents backflow from the high-pressure region in the back across the spoilers to the convergent part. The surface in front is as smooth as possible or even employs shark-like skin, as any turbulence here increases the energy of the airflow. ![]()
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