| 1. | The observatory presently uses a single storm surge model operating from finer grids in bays and near coasts but coarser grids to the open sea 天文台现在应用一个风暴潮模式,在港湾和接近沿岸时使用较密集的网格点而在大海时使用较疏网格点。 |
| 2. | The observatory presently uses a single storm surge model operating from finer grids in bays and near coasts but coarser grids to the open sea 天文台现在应用一个风暴潮模式,在港湾和接近沿岸时使用较密集的网格点而在大海时使用较疏网格点。 |
| 3. | In this approach , the full nonlinear system is solved on a coarse grid . the nonlinearities are expanded about the coarse grid solution , and the resulting linear system is solved on a fine grid 这些算法的特点是仅在粗网格上进行非线性问题的计算,而在所需要求解的细网格上只进行线性问题的计算。 |
| 4. | Comparing the computed values with those of 50 tidal observatories , we find that the computational precision with fine grids and moving boundary are generally higher than that with wide grids or fixed boundary 沿岸50个潮位站计算与实测值的比较表明,加入动边界以后的小区域细网格计算较之粗网格以及未加动边界以前的情况,精度都有普遍提高。 |
| 5. | The bay model complements the first by using a very fine grid to resolve those geographic features such as bays and inlets at which storm surge observations are absent and where storm surge information is required as design parameters for coastal structures such as embankments 而港湾风暴潮模式的覆盖范围较小,这模式利用一套非常密集的网格点来计算出例如港湾和河口等地理位置的风暴潮资料以补开阔海岸模式的不足。 |
| 6. | The coarse grids are obtained by agglomerating the fine grids . the solution of coarse grids is driven by the fine grids " residue , and the solution on the coarse grids is used to correct the solution on the fine grids , which can eliminated all parts of frequency errors on the fine grids 粗网格上的解由细网格上的残值来驱动,粗网格上的解对细网格上的解进行修正,这样就能较快地消除细网格上解的高低频误差,加速解的收敛,提高计算效率。 |
| 7. | A complicated model has been setted up to simulate the sodium flow in hot and cold plenum under normal condition and reactor scram of cefr , using fine grid to simulate the reactor internals and important equipments . this slove the problem that the simulation grids are very coarse in the precedeable work , and the accuracy and reliability of the simulation are improved . 4 对cefr的额定工况和全厂断电工况下的堆内过程进行了复杂的数学建模和分析,使用了精细的六面体网格,对堆内构件和重要的设备进行了三维的数值分析,克服了以往数值模拟中网格过于粗糙的缺点,使数值分析的准确性和可信度大大提高; 4 |
| 8. | The disadvantage is that small variations in coastlines such as bays and inlets cannot be resolved . the bay model complements the first by using a very fine grid to resolve those geographic features such as bays and inlets at which storm surge observations are absent and where storm surge information is required as design parameters for coastal structures such as embankments 而港湾风暴潮模式的覆盖范围较小,这模式利用一套非常密集的网格点来计算出例如港湾和河口等地理位置的风暴潮资料以补开阔海岸模式的不足。当建设沿岸工程如堤坝等需要参考港湾和河口的风暴潮资料而又没有这些纪录时,这套模式便派上用场。 |
| 9. | Grell scheme can simulate pw more accurate than others for coarse grid of mm5 and pw simulation of bm scheme is less accurate than others for fine grid of mm5 . 3 , the initial humidity fields reanalyzed by using gps pw can obviously improve its capability in revealing the water vapor distribution , which can result in restraining pw prediction bias during the earlier period of model integration so as to improve pw prediction 3 、用gps测量的可降水量资料调整mm5模式湿度初始场可明显增强模式初始场描述水汽分布的能力,使其对可降水量的描述误差明显减小,有利于模式初始场更好地反映出水汽分布的局地特征,从而有效地控制模式积分初期对可降水量的预报误差。 |
| 10. | Using the 1 - d rivernet model calculates the water discharge ratio of the two branches and also duplicates the back - flow in the north branch during flood tide . the 2 - d model with a fine grid is applied to the field of flow in the changjiang estuary and the results are well in agreement with the measured flow 同时利用河网模型对长江口分汊河段进行一个月的水流模拟,并获得了长江口南北支分流比,复演出北支涨潮时水体倒灌转流现象,解决了河网模型用于分汊河道潮汐水流模拟的问题。 |