linearized theory of fluid flow

linearized theory of fluid flow

[¦lin·ē·ə‚rīzd ‚thē·ə·rē əv ′flü·əd ‚flō]
(fluid mechanics)
An approximate method for solving aerodynamic problems; it treats the flow of an inviscid gas past a body whose geometry and motion are such that the disturbance velocities caused by its introduction into some previously known flow are small compared with the speed of sound; as a result, the equations of motion can be approximated by retaining only those terms which are linear in disturbance or perturbation velocities, pressures, densities, and so forth.
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