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METHOD AND EQUIPMENT FOR CONTROLLING TURBULENT FLOW IN FLUIDFLOW REGION LIMITED BY BOUNDARY LAYER AND ANOTHER WALL
METHOD AND EQUIPMENT FOR CONTROLLING TURBULENT FLOW IN FLUIDFLOW REGION LIMITED BY BOUNDARY LAYER AND ANOTHER WALL
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机译：边界层和另一层墙限制的径流区域内湍流的控制方法和设备
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摘要
PURPOSE: To control turbulence through compensation of a starting mode by connecting obliquely propagating structures so as to increase/decrease the interaction between a system of roll pairs and a propagation structure and locally guiding two separate disturbances to a turbulent wall region. CONSTITUTION: Obliquely propagating structures are connected so as to increase/ decrease the interaction of propagation structures with a system of roll pairs thereby locally increasing/decreasing the disturbance drag in a flow region. For forming a composite disturbance region compensating the structure, two simultaneously operating means are provided to produce two effective, separate disturbances in a local region. In this embodiment, the apparatus 50 comprises strip-shaped means 51 of delta-shaped projections 53 and a resonator box-shaped means 54 formed of a sound generator 55 having a loudspeaker 56 attached to its free end 58. This arrangement can produce the disturbances generating a pair of oblique waves enhancing the turbulence so as to organize the turbulence for reducing the disturbance drag.
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