(1) Stokes - free sinking of ball in oil, (2) Ventouri / Bernouli principle, (3) Laminar flow phenomenology, (4) Flow transition Laminar-Turbulent, (5) Supercritical flow, (6) Subcritical flow, (7) Upstream control of Hydraulic Jump, (8) Critical flow over smooth-crested weir, (9) Sluice-gate flow, (10) Flow over sharp-crested weir, (11)/(12) Super/Sub-critical flows over bump, (13) Celerity of shallow wave, (14) Shallow wave in countercurrent flow, (15) Mild, density-driven mixing, (16) Capillary rise, (17) Beavers-Joseph boundary condition: Hydraulic Wedge + Seepage + Drainage (18) co-injection of two immiscible phases within a microfluidic pore network (WxL 1cm x 2cm, see Karadimitriou et al., 2023)
Electronic book --> Valavanides, M. (2025). Experimental Hydraulics [Undergraduate textbook; in Greek]. Kallipos, Open Academic Editions. https://dx.doi.org/10.57713/kallipos-1033
Overview
Mission - The Laboratory of Hydraulics supports undergraduate and postgraduate education in Fluid Mechanics and Hydraulics by providing structured laboratory teaching that connects theoretical knowledge with hands-on experimental practice. Its mission is to equip students with the scientific understanding, practical skills, and professional competencies required for engineering practice in hydraulics and environmental engineering. The Laboratory offers well-equipped experimental facilities that allow students to observe, control, and analyze fundamental flow phenomena, including pressure-driven flows, free-surface flows, and underground flows. Through guided laboratory exercises, students develop the ability to design and conduct experiments, apply appropriate measurement techniques, analyze and interpret data, and communicate technical results effectively. Teaching activities are delivered mainly through short-term laboratory courses, offered both on-site and via distance-learning formats, and are aligned with clearly defined learning outcomes and assessment methods. Students are further encouraged to deepen their learning through diploma theses involving applied experimental work, carried out either within the Laboratory (JPSE2016, IPOR2019, ΑΜΜ2015, PSPM6_2013, TR), or through collaborations with academic and infrastructure partners [Uni Stuttgart (SFB1313-AX06), TU Crete and EYDAP / SCA]. Some of these student projects are connected to broader research initiatives, such as the ImproDeProFproject, enhancing research awareness while maintaining a strong educational focus. In support of its teaching mission and continuous improvement, the Laboratory also contributes to educational seminars and training activities, and provides measurement and evaluation services for hydraulic components and installations, strengthening the link between engineering education, professional practice, and societal needs.
Location - Τhe Lab is located on the ground floor of Building C (C.011), Campus 2, the "Ancient Olive Grove".
Equipment - Instrumentation and devices for measuring basic properties of fluids (density, viscosity, etc). A 6m flume of orthogonal cross-section (DxW) 30x7,5 cm2 with adjustable bed inclination and surface grade, and a 1,2m flume of adjustable bed (DxW) 20x4 cm2. Hydraulic benches and lab devices for controlled reproduction of hydraulic phenomena (see videos above) in pressure-driven ("tube") and free-surface ("open channel)" flows. A hydrodynamic rig (coupled pump/turbine/brake). Water-cycle surface and/or subsurface hydrology phenomena (precipitation, surface and/or soil drainage, imbibition, infiltration). Aerodynamics bench. Hydrology related equipment for field measurements in aqueducts and rivers, level meters, wind /rain /temperature-humidity gauges. Various auxiliary devices, pitot tubes, concentration sensors, digital pressure transducers. PIV (particle-induced velocimetry) system, wave probes. Also, fume hood, microscopes, constant temperature baths, chamber kilns and incubator, digital scales, etc.
