An internal gravity wave model was employed to simulate the generation of internal solitary waves (ISWs) over a sill by tidal flows. A westward shoaling pycnocline parameterization scheme derived from a three-parameter model was adopted, and then 14 numerical experiments were designed to investigate the influence of the pycnocline thickness, density difference across the pycnocline, westward shoaling isopycnal slope angle and pycnocline depth on the ISWs. When the pycnocline thickness on both sides of the sill increases, the total barotropic kinetic energy, total baroclinic energy and ratio of baroclinic kinetic energy (KE) to available potential energy (APE) decrease, whilst the depth of isopycnal undergoing maximum displacement and ratio of baroclinic energy to barotropic energy increase. When the density difference on both sides of the sill decreases synchronously, the total barotropic kinetic energy, ratio of baroclinic energy to barotropic energy and total baroclinic energy decrease, whilst the depth of isopycnal undergoing maximum displacement increases. When the westward shoaling isopycnal slope angle increases, the total baroclinic energy increases whilst the depth of turning point almost remains unchanged. When the depth of westward shoaling pycnocline on both sides of the sill reduces, the ratio of baroclinic energy to barotropic energy and total baroclinic energy decrease, whilst the total barotropic kinetic energy and ratio of KE to APE increase. When one of the above four different influencing factors was increased by 10% while the other factors keep unchanged, the amplitude of the leading soliton in ISW Packet A was decreased by 2.80%, 7.47%, 3.21% and 6.42% respectively. The density difference across the pycnocline and the pycnocline depth are the two most important factors in affecting the characteristics and energetics of ISWs.

内部重力波模型被用来模拟潮汐流在窗台上产生的内部孤立波 (ISW)。采用由三参数模型推导出来的向西浅滩密斜参数化方案，然后设计了14个数值实验，研究了密斜层厚度、密度差、西侧浅滩等密斜角和密斜层深度对ISW的影响。当窗台两侧的密斜层厚度增加时，总正压动能、总斜压能和斜压动能（KE）与可用势能（APE）的比值减小，而发生最大位移的等密层深度和斜压能量向正压能量增加。当基台两侧的密度差同步减小时，总正压动能、斜压能与正压能之比和总斜压能减小，而发生最大位移的等密线深度增加。当向西浅滩等密坡角增加时，总斜压能量增加，而转折点深度几乎保持不变。当基台两侧向西的浅滩密斜深度减小时，斜压能与正压能之比和总斜压能减小，而总正压动能和KE与APE之比增加。当上述四种不同影响因素之一增加10%而其他因素保持不变时，ISW 数据包 A 中前导孤子的幅度分别下降了 2.80%、7.47%、3.21% 和 6.42%。密度差异和密度差异是影响 ISW 特征和能量学的两个最重要的因素。