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发展新型的海面空气动力学粗糙度参数化方案 被引量:3

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摘要 由量纲分析导出无因次粗糙度长度与波龄有关,粗糙度长度无因次形式写为与有效波高有关,综合利用6个试验资料(HEXMAX试验、RASEX试验、BIO稳定平台试验、FETCH试验、CBLAST低风试验),共同验证Charnock参数zch与无因次粗糙度长度z0/hs对波龄的依赖性,建立粗糙度长度方案,并讨论其对摩擦速度和波龄的敏感度.把研制的海面粗糙度参数化方案引入COARE(V3.0)算法中,选择1985年12月在北海的FPN平台上的试验资料,检验海面粗糙度长度参数化方案与COARE算法中3种方案的适用性.结果表明:O02和TY01方案较高估计了摩擦速度,YT96方案略偏低估计了摩擦速度,而研制的方案计算结果与实测结果最接近.将研制的海面粗糙度方案应用于风浪耦合嵌套模式中,选取湛江港3次历史台风资料,计算硵洲岛海浪并与实测浪高相比较,验证该方案具有较好的适用性.
出处 《自然科学进展》 北大核心 2007年第8期1069-1077,共9页
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参考文献18

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