- In supersonic flow, expansion waves occur when bodies begin to narrow, making more space available. In passing through an expansion wave, air velocity increases, while temperature and pressures are reduced. A simple wave or progressive disturbance in the isentropic flow of a compressible fluid, such that the pressure and density of a fluid particle decrease on crossing the wave in the direction of its motion. It is the opposite of a compression wave. Also called a rarefaction wave. See also compression wave.
Aviation dictionary. 2014.
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expansion wave — praretėjimo banga statusas T sritis fizika atitikmenys: angl. expansion wave; rarefaction wave vok. Verdünnungswelle, f rus. волна разрежения, f pranc. onde de raréfaction, f … Fizikos terminų žodynas
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