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The turbulent wake of a submarine model in pitch and yaw

机译:潜艇模型在俯仰和偏航中的湍流

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The objective of the present study is to understand how the pitch and yaw angle affect the mean flow and turbulence in the wake of the DARPA SUBOFF, an idealized submarine model. Measurements in the wake were performed at Re_L = 2.4 × 10~6. Mean velocity and one-component turbulence measurements were performed using Pitot probes and single normal hot wires in the span-wise plane, 10 diameters downstream of the trailing edge. The range of measured angles of attack and yaw angles were limited to between 0°and 12°in part to avoid wind tunnel interference effects. Flow visualization in water at Re_L = 40 × 10~3 was also performed to inform the wake patterns observed at higher Reynolds number.
机译:本研究的目的是了解理想化潜艇模型DARPA SUBOFF后,​​俯仰角和偏航角如何影响平均流量和湍流。唤醒后的测量在Re_L = 2.4×10〜6时进行。平均速度和单分量湍流测量是使用皮托管探头和单根法线在跨度平面中进行的,其后缘的下游直径为10。为了避免风洞干扰的影响,测得的迎角和偏航角的范围部分限制在0°和12°之间。还对Re_L = 40×10〜3的水中流动进行了可视化,以告知在较高雷诺数下观察到的尾流模式。

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