纤细的身体周围流淌着锋利的边缘

Manuel Núñez
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引用次数: 0

摘要

谐函数在域边界拐角附近的行为具有普遍性,可用于研究具有尖锐边缘的细长体周围的流动。根据角尖附近势函数的能量,可能会在其附近产生快速旋转流或涡流。对于内角,例如在主体的凹槽中,可能会出现停滞区或涡流。侧向力也会受到转角的影响,产生类似于环流升力或涡流升力的结构。
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Flow around a slender body with sharp edges
The behavior of harmonic functions near corners of the domain boundary has a universal character that may be applied to the study of the flow around slender bodies with sharp edges. Depending of the energy of the potential function near the tip of the corner, this may yield a fast rotating flow or a vortex in its vicinity. For internal angles, such as occur in grooves of the body, a stagnation region or an eddy may occur. Lateral forces are also affected by the presence of corners, yielding configurations that resemble either a circulation lift or a vortex lift.
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