埕岛油田海域波—底相互作用

基于1976，1993年埕岛油田海域测深资料，应用HISWA浅水海浪数值计算模式，研究风暴浪入侵该海域导致的波-底相互作用后果。数值计算结果表明，海区固定点海底冲刷导致波场强化；波参数增量与冲刷深度有关；海底水质点轨道流速峰值，底摩擦耗散峰值及临界波高值相对水深分布均表明，该海域深水区海底冲刷将减弱，浅水区海底冲刷将加强。

WAVE-BOTTOM INTERACTION IN CHEN DAO OIL FIELD SEA AREA

Based on the water depth measurements of 1976 and 1993 and typical stormwave data in Chen Dao oil field sea area, HISWA model is used to compute wave parameters on the two bottoms to investigate the consequence of wave-bottom interaction due to attack of storm waves into the sea area. Numerical results show that for fired points in this all sea areall sea bed erosion results in streng thening of wave field; the change of wave parameter increases with erosion depth, the distrbution of peak values of both near-bottom orbital veloclty and dlssipation due to bottom friction with waterdepth, and the distribution of critical wave height with water depth show that in this area the sea bed erosion in deeper water reglon will be weakened, and that in shallower water region will be strengthen.