Turbulent Buoyant Jets in Shallow Fluid Layers

摘要: Publisher Summary The classical approach toward the problem of jets, with or without buoyancy, neglects induced pressure gradients within resulting fluid motion. Analytically, this is justified by assuming an unbounded, infinitely large receiving fluid. Experimentally, that condition met insuring dimensions medium are larger than characteristic jet dimensions. There numerous instances in applied problems environmental mechanics—that is, analysis and design man-made discharges into hydrosphere atmosphere—in which fundamental assumption theory not satisfied. Significant modifications usual plume motions occur entirely new unexplained flow phenomena arise require different analytical approaches. It one two factors, a combination produces such flows. First, ambient might be vertically bounded shallow layer so strongly confined has tendency recirculation local breakdown. Second limited to buoyant conditions, discharge at, parallel to, horizontal boundary—even if otherwise unlimited depth—causes additional hydrostatic forces that, turn, affect entrainment structure global character jet.