| 1. | The three - dimensional primitive equations were derived for ocean in the condition of turbulence , by using the reynods time average method
首先在流体动力学和热动力学的基础上，应用雷诺时均方程法，详细推导得到海水在湍流状态下的三维原始方程。 |
| 2. | In the end , we built a model of the 4 - d variational data assimilation for a barotropic primitive equation based on ga and compared with the adjoint assimilation model
同时，以正压原始方程组为例建立了基于遗传算法的变分同化模型，并从多方面与伴随模式变分同化系统进行了分析比较。 |
| 3. | The regional spectral model component is a primitive equation model on a stereographic projection and uses sine - cosine series as horizontal basis functions . the regional component predicts deviations from the forecasting of the global morjel component
区域部分的预报偏差来自全球模式部分的预报，在区域范围内，半隐式时间格式、时间滤波、初始化和水平扩散的应用都与偏差有关。 |
| 4. | The numerical simulation of axisymmetric two - dimensional shock tube is studied , which has a conical convergent section , and its driving gas is the hot product of hydrogen oxygen detonation . finite volume tvd scheme is adopted and the mesh is local orthogonal . the primitive equations are euler s equations of multi - component flow . the new method of eliminating numerical oscillation at the interface of two materials is extended to two dimensions . the mechanical character of this shock tube is analyzed
对由前向爆轰产生驱动气体并具有局部锥形收缩截面的轴对称激波管利用两相常比热完全气体的欧拉方程组和有限体积tvd格式在局部正交的网格上进行了二维数值模拟。将消除两种介质界面处数值振荡的新方法成功地推广到二维情况。分析了该激波管的力学特性。 |
| 5. | In this thesis , the tides and tidal currents in the seas adjacent to zhejiang province are simulated with a three - dimensional baroclinic primitive equation model - hamburg shelf ocean model ( hamsom ) . two numerical techniques - nested grid and moving boundary method are used successfully and high precision results which compared with the observed ones are obtained . these results reveal the characteristics and the moving rules of the tides and tidal currents in this area
本文采用三维陆架海模式( hamsom )对整个浙江近海的潮汐和潮流进行了三维数值模拟，成功地应用网格嵌套和动边界技术获得了和实测资料相吻合的较高精度的结果，揭示了浙江近海潮汐、潮流的主要特征和运动规律。 |
| 6. | In this thesis , studies were carried out on the theoretical schemes of data assimilation and their applications on sea fluid field , the three - dimensional baroclinic primitive equation model - hamburg shelf ocean model ( hamsom ) - being one part of the three ones that constitute the data assimilation ( da ) system . effective modification on schemes of da were obtained and applications on topex / poseidon ( t / p ) data results that covering the area of yellow sea and east sea were done . the final results became closer to the objective nature
本文以三维陆架海模型( hamsom )作为数据同化系统的模型部分，深入研究了数据同化的理论方法和在海洋流场数据处理中的应用，对海洋场的数据同化方法提出了行之有效的改进，并将中国黄、东海区域内的topex poseidon ( t p )数据和理论模式的计算结果相结合，进行同化处理，获得了更接近于真实的结果。 |
