HM 132 Vertical Visualisation Of Flow Fields Didactic Equipment Vocational Training Equipment Fluid Mechanics Lab Equipment
Visualisation using electrolytically generated hydrogen bubbles Features - visualisation of flow fields and streamlines around models using electrolytically generated hydrogen bubbles - illuminated vertical experimental section - investigations in laminar flow Learning objectives/experiments - visualisation of two-dimensional flows - streamline course in flow around and through models - flow separation - vortex formation, demonstration of Karman vortices - qualitative observation of the velocity distribution in laminar flow - analogy to air flow - in conjunction with a special camera (i.e. PCO Pixelfy) and suitable software (i.e. ImageJ): -- image processing evaluation of the experiments (particle image velocimetry, particle tracking velocimetry) Specification [1] electrolytically generated hydrogen bubbles visualise flow fields of different models [2] closed water circuit with experimental section, storage tank, pump, valve to adjust the flow velocity [3] vertical experimental section with black background, LED illumination on both sides and 2 insert positions for the model [4] supplied models: 2 aerofoils, triangle, semicircle, hollow hemisphere, 2 cylinders (different sizes), 2 models for changes in cross-section [5] low-turbulence flow using stabilisation tank with flow straightener [6] bubble generator: platinum wire as cathode and frame of experimental section as anode [7] cathode can be inserted in different positions [8] setting cathode current, pulse and pause duration [9] switch cabinet with displays for cathode current and flow velocity Technical data Pump, 3 stages - max. flow rate: 9,7m³/h - max. head: 12m - power consumption: 400W Storage tank: approx. 75L Experimental section - LxH: 300x860mm, W=49mm Bubble generator - current: 0...2A - platinum wire as cathode Measuring ranges - flow velocity: 0...13,3cm/s - current: 0...2000mA - temperature: 0...100°C (water) 230V, 50Hz, 1 phase 230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase UL/CSA optional LxWxH: 1850x800x1990mm Weight: approx. 260kg
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