北部湾潮汐数值计算参数的试验

Coefficient Tests on the Tidal Simulation of the Beibu Gulf

关键词:  潮汐  数值试验  数值计算  潮波动力学

Key words:  tide  numerical expriment  numerical computation  tidal dynamics

摘要:

选不同的海底摩擦系数以及水平湍流摩擦系数,对北部湾的ki分潮进行了数值模拟试验。结果表明,当底摩擦系数取0.002~0.003,而水平湍流摩擦系数取1×10²~5×10³ m²/s时其模拟结果与实测潮波系统比较吻合。潮波动力学方程中的底摩擦项对数值结果影响较大,而水平湍摩擦项对数值结果的影响不甚明显。

Abstract:

The k_i constituent in the Beibu Gulf is studied using different coefficients of bottom friction and horizontal turbulent friction, The results show that, when coefficient of bottom friction is 0.002 to 0.003 and coefficient of horizontal turbulent friction is 1×10² to 5×10³ m²/s, the computed values agree generally with the observed one. The bottom friction term in tidal wave dynamic equations is significant to the numerical result, but horizontal turbulent friction term is insignificant to it.