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本文根据试验提出并检验了过固定二维潜体恒定流情况的流动分区方法,且与拖曳水槽试验的结果作了比较。因拖曳水槽试验不总是达到恒定流状态,所以两种方法不同,可是,两种方法都能预示,对于同样的外部条件,可以存在两种稳定状态。实验表明了滞后现象的存在,但它的范围比预计的要小。这种差异的产生在于理论假设在水流中潜体和水跃的长度是可以略而不计的.
In this paper, we propose and test the flow partitioning method of over-fixed two-dimensional submarine constant flow according to the experiment, and compare with the result of drag tank test. Both methods are different because the towing tank test does not always achieve a constant flow condition, but both methods predict that two stable states exist for the same external conditions. Experiments show the existence of hysteresis, but its scope is smaller than expected. The difference arises from the theoretical assumption that the length of the submerged body and the jerk in the water stream can be negligible.