– Water tunnel: test section closed and filled to maximise volume at ambient pressure. – Water flume: test section roof open to simulate free-surface flows at ambient pressure – Cavitation channel: test section closed to simulate depressurised free-surface flows To this end, the test section is designed to provide flexibility of operation settings, specifically: The facility is designed and equipped for hydrodynamics studies on naval and marine structures and vehicles. The water flow is driven by dual 4-bladed axial impellers with delivered power of up to 435 kW (584 hp) each. The test section can be depressurized down to 3 KPa for model tests in cavitation similitude with respect to full scale. In the test section, the highest free-stream turbulence intensity is less than 3-4% and the mean velocity uniformity is within 2% for the axial component and 4% for the cross-components. The facility has a test section measuring 10 m × 3.6 m× 3 m (L×W ×D) and operates with a water depth of 2.25 m. Recent experiments include: studying the growth rate of turbulent wakes through the process of turbulent entrainment, static mixing enhancement using multi-scale mixers, passive flow control of vortex-induced vibrations for offshore structures, using polymer additives to reduce turbulent skin friction drag, and simulating take offs/landings of aquatic/amphibious micro unmanned aerial vehicles.Scope The Large Cavitation Water Channel of INM is a large free-surface circulating water channel, among the largest infrastructures of this type worldwide. The facility is highly flexible and can accommodate a broad range of research projects. ![]() ![]() rapidly accelerating race car geometries). Additionally, a controllable moving frame is mounted above the facility so that towing type experiments can also be performed, as well as unsteady aerodynamics experiments (e.g. This makes the facility ideally suited for the application of high-speed (time-resolved) laser diagnostics for fluid mechanics, such as particle image velocimetry to measure velocities, and planar laser-induced fluorescence to measure scalar concentrations. The test section, made from glass, provides complete optical access from all four sides. In turn, this makes extremely high temporal resolution experiments possible. Since the kinematic viscosity of water is 10 times smaller than that of air, experiments can be performed with much smaller velocities (and hence smaller time scales) for an identical Reynolds number. With a 0.6 m square test section of 9m in length, the flume can produce flow velocities of up to 1 m/s. It has a 4:1 contraction and three turbulence-damping screens in order to maintain a high-quality flow in the test section. The Hydrodynamics Laboratory opened in 2013 and features a recirculating, free-surface water flume. Contractors, visiting and temporary staff.Undergraduate Research Opportunities Programme (UROP).Personal Review and Development Plan (PRDP).MSc Composites: the Science, Technology and Engineering Application of Advanced Composites.MSc Advanced Computational Methods for Aeronautics, Flow Management and Fluid-Structure Interaction.Admissions Frequently Asked Questions (FAQs). ![]() Airborne transmission of COVID-19 carrier particles during exercise.Search Imperial Search Department of Aeronautics Section Navigation
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