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maidenhead    
n. 处女膜

处女膜

maidenhead
n 1: a fold of tissue that partly covers the entrance to the
vagina of a virgin [synonym: {hymen}, {maidenhead}, {virginal
membrane}]

Maidenhead \Maid"en*head\, n. [See {Maidenhood}.]
1. The state of being a maiden; maidenhood; virginity.
--Shak.
[1913 Webster]

2. The state of being unused or uncontaminated; freshness;
purity. [Obs.]
[1913 Webster]

The maidenhead of their credit. --Sir H.
Wotton.
[1913 Webster]

3. The hymen, or virginal membrane.
[1913 Webster]


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  • Numerical Wave Tank Simulation and Validation - Springer
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    Generation and propagation of waves in a numerical wave tank constructed using Weakly Compressible Smoothed Particle Hydrodynamics (WCSPH) are considered here Numerical wave tank simulations have been carried out with implementations of different Wendland kernels in conjunction with different numerical dissipation schemes
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    Focused wave generation is implemented in the numerical wave tank module of REEF3D, which has been extensively and successfully tested for various wave hydrodynamics and wave–structure interaction problems in particular and for free surface flows in general
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    In order to develop a versatile Numerical Wave Tank (NWT), with the possibility to include bodies or sea bed with complex geometries, a time domain resolution involving a mesh in the spatial coordinates appears to be practical at the cost of an increase in the computational load
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    (7) To ensure the accuracy in long-time wave propagation, the number of cells per wave height is set to H Δz ≈ 30 Besides, considering the intermediate depth condition, the height of the first layer at the bottom boundary is set to Δz ≈ 1 240 h, and the expansion ratio is set to 1 05
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    1 Introduction and problem statement In this article a brief introduction is given on how to implement a Numerical Wave Tank (NWT) in OpenFOAM to simulate regular water waves NWTs are used to simulate regular and irregular waves to study water free surface dynamics, sediment transport, uid-structure interaction due to wave loads and more
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    Two parameters were studied, the number of cells per significant wave height in the vertical direction, and the aspect ratio of the cells If the waves of interest were not as long relative to their wave height, the number of cells per wavelength in the propagation direction could be a governing parameter





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