数值试验中时间步长的选取
SELECTION OF TIME STEP IN NUMERICAL EXPERIMENTS
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摘要: 建立一个二维的海陆风静力模式来讨论时间步长的选取,发现定时间步长不宜取得太大或者大小,必须是某个适当的值。变时间步长的模拟效果要比定步长理想。时间步长越大,海风中心强度模拟值变小。Abstract: A two-dimensional static sea-land breeze model is established to investigate the selection of time step.A definitive time step must be a suitable value,neither too large nor too small.An indefinitive time step is better than a definitive one.The greater the time step is,the weaker the central strength of sea breeze will be.
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Key words:
- Numerical modelling /
- Time step /
- Sea-land breeze
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