AM05-16-012 放射状液体シート上の波動の解析(波動・音・衝撃波3,一般講演)

概要

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Waves on a radially expanding liquid sheet in a void and at zero gravity are are investigated. It has been known that thickness of a steady radially expanding liquid sheet varies inversely proportional to a radial distance from the central axis and this leads to the continuous change in the velocity of the waves on it. We derive the equations that describe the time evolution of the axisymmetric radially expanding sheet using the thin-layer approximation. Steady solution of the equations is obtained by solving the equations numerically. We also investigate the time evolution of the sheet which is modulated at a nozzle exit. In those case, sinuous or dilational waves are created according to a way of a modulation. We compare it to the one of the planar sheet, which has been reported in the preceding studies.
日本流体力学会の論文
2005-09-05