Artificially thickened boundary layer turbulence due to trip wires of varying diameter
Zhanqi Tang, Nan Jiang, Zhiming Lu, Quan Zhou
Abstract
Tripping effects are studied in artificially thickened turbulent boundary layers (AT-TBLs) within a finite-length test section. The emergence of the generated large-scale structures highlights the potential of the AT-TBLs to simulate high-Re${}_{\ensuremath{\tau}}$ boundary layer turbulence. We examine the noncanonical behaviors and external similarity under over-tripped conditions. The results emphasize the need for caution when pursuing excessive thickening of the boundary layer through leading-edge trips for generating high-Re${}_{\ensuremath{\tau}}$ canonical TBLs in a finite-length test section.
Topics & Concepts
TurbulenceTrippingBoundary layerThickeningBoundary (topology)MechanicsScale (ratio)Similarity (geometry)Layer (electronics)Materials sciencePhysicsMathematicsMathematical analysisComputer scienceImage (mathematics)Artificial intelligenceCircuit breakerQuantum mechanicsComposite materialPolymer scienceFluid Dynamics and Turbulent FlowsWind and Air Flow StudiesPlant Water Relations and Carbon Dynamics