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Sloshing dynamics of shallow water tanks: Modal characteristics of hydraulic jumps
Journal of Fluids and Structures ( IF 3.4 ) Pub Date : 2021-06-09 , DOI: 10.1016/j.jfluidstructs.2021.103322
Saravanan Gurusamy , V.S. Sanapala , Deepak Kumar , B.S.V. Patnaik

The dynamics of slosh induced wave systems in shallow water tanks is analyzed for various excitation conditions. Shake table experiments have been systematically performed to understand the complex interaction of multi-wave system under harmonic excitation. From the experiments, it was observed that, for relatively large excitation amplitudes, the hydraulic jumps emanated around the resonance region. The hydraulic jump phenomenon is further explored for different tank aspect ratios, i.e, 2.5 LB 4.038. To establish the frequency bounds for hydraulic jumps, excitation amplitude and frequency are demarcated over the range of 0.841 β 1.628 and liquid depth range of 0.034 hL 0.069. The experimental bounds are juxtaposed with the theoretical bounds to analyze the margins present in hydraulic jumps. Although, the theoretical bound is independent of liquid depth, experimental observations clearly indicate a strong dependency.



中文翻译:

浅水水箱晃荡动力学:水跃的模态特性

针对各种激励条件分析了浅水箱中晃动诱导波系统的动力学。已经系统地进行了振动台实验,以了解谐波激励下多波系统的复杂相互作用。从实验中可以看出,对于相对较大的激励幅度,水跃在共振区域周围发出。进一步探讨了不同水箱纵横比的水跃现象,即 2.5 4.038。为了建立水跃的频率界限,在 0.841 的范围内划分激励幅度和频率 β 1.628 和液体深度范围 0.034 H 0.069。实验界限与理论界限并列以分析水跃中存在的余量。尽管理论界限与液体深度无关,但实验观察清楚地表明存在很强的依赖性。

更新日期:2021-06-09
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