Visualisation of streamlines in an open channel Flow around various drag bodies and incident flow of weirs; ink as contrast medium Features - flow around various drag bodies - incident flow of different weirs - ink as contrast medium for visualising the streamlines - flow visualisation using CFD technology - multimedia teaching material online in the GUNT Science Media Center: E‑Learning course, prepared CFD simulations, worksheets, videos Learning objectives/experiments - how differently shaped weirs affect the flow - visualisation of streamlines for flow incident to a weir - visualisation of streamlines when flowing around various drag bodies - supercritical and subcritical flow GUNT Science Media Center, develop digital skills - E-Learning course with fundamental knowledge and calculations - prepared CFD simulations for flow visualisation - videos with detailed demonstration of the experiments: preparation, execution, evaluation - assured learning success through digital worksheets - retrieve information from digital networks Specification [1] visualisation of streamlines during incident flow and flow around various weirs and drag bodies [2] transparent experimental flume [3] incident flow demonstrated on two weirs [4] demonstration of flow around four different drag bodies [5] contrast medium: ink [6] distributor for contrast medium with seven nozzles [7] water level in the experimental flume adjustable via sluice gate at the water inlet and weir at the water outlet [8] flow straightener for even, non-vortical water inlet [9] water supply using HM 150 base module or via laboratory supply [10] flow visualisation using prepared CFD simulations [11] digital multimedia teaching material online in the GUNT Science Media Center: E‑Learning course, prepared CFD simulations, worksheets, videos Technical data Experimental flume - LxWxH: 625x20x150mm Contrast medium: ink Injection of the contrast medium: 7 nozzles Tank for water: 12,5L Tank for ink: 500mL Drag bodies - small cylinder: Ø 35mm - large cylinder: Ø 60mm - streamlined body - guide vane profile Weirs - broad-crested weir - sharp-crested weir LxWxH: 895x640x890mm Weight: approx. 24kg