作者: G. K. Morris , S. V. Garimella
DOI: 10.1115/1.2792288
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摘要: The flow fields in the orifice and confinement region of a normally impinging, axisymmetric, confined submerged liquid jet were computationally investigated. Numerical predictions made for diameters 3.18 6.35 mm at several orifice-to-target plate spacings, with turbulent Reynolds number ranging from 8,500 to 23,000. commercial finite-volume code FLUENT was used solve using modified {kappa}-{epsilon} model based on renormalization group theory. predicted characteristics separation entrance agree experiments literature. pressure drop across within 5% proposed empirical correlations published experimental data. computed patterns impinging good qualitative agreement visualizations; however, secondary recirculation zone observed not by models.