About this Research Topic
Fluid mechanics is one of the oldest and broadest fields of engineering. It encompasses aerodynamics, hydrodynamics, vortex dynamics, gas dynamics, computational fluid dynamics (CFD), convection heat transfer, flows of turbomachinery, acoustics, biofluids, physical oceanography, atmospheric dynamics, wind engineering, and the dynamics of two-phase flows. The modern design of aircraft, spacecraft, automobiles, ships, land and marine structures, power and propulsion systems is impossible without a clear understanding of the relevant fluid mechanics.
In addition, multiple slender structures in cross flow are widely seen in engineering. Typical examples are high-rise buildings or skyscrapers, chimney stacks, overhead power-line bundles, submarine communication system, undersea pipelines, electronic components on boards, marine risers, tube bundles in heat exchangers, bridge piers, stays, masts and chemical-reaction towers. While the wake of a single structure is very complex, the flow interference between the multiple structures, making the wake more complex, leads to a very high fluctuating forces, structural vibrations, acoustic noise, or resonance, which in some cases can trigger failure. The knowledge of flow around multiple structures is thus very crucial for the designer to provide a longer life to the structures. The wake, flow structures, flow-induced forces, vortex shedding frequency, vortex dynamics and fluid-structure interactions have been the subjects of intensive research because of relevance to engineering structural design. Naturally, flow control techniques are paid attention to alleviate the fluid-structure interaction problems.
Much of the research work in fluid mechanics is fundamental, not directly connected to engineering applications now, but may be in future. This fundamental work really fishes out important physics, though nestling outside the traditional physics.
In this Research Topic, we aim to collate and review the research works on bluff-body aerodynamics, fluid-structure interactions, wind and ocean energy harvesting, and flow control. The works can be experimental, theoretical or computational. Review papers are also welcome.
Keywords: wake, flow control, wind & ocean energy harvesting, fluid-structure interactions, Bluff-body aerodynamics
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