Experimental studies on pressure drag and aerodynamic noise of cylinder with porous coatings
نویسندگان
چکیده
Previous numerical studies hold inconsistent viewpoints of the porous coating on a circular cylinder reducing or increasing drag, and present experimental study aims to clarify this argument. Additionally, common viewpoint is that coatings can suppress both near-field wall pressure fluctuations far-field acoustic pressure, but optimal parameters materials are still unclear. In paper, reveal effects three parameters, i.e., incoming flow velocity, pores per inch, thickness metal foams, fluctuations, associated noise level.
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ژورنال
عنوان ژورنال: Physics of Fluids
سال: 2023
ISSN: ['1527-2435', '1089-7666', '1070-6631']
DOI: https://doi.org/10.1063/5.0153779