backwater surface 中文意思是什麼
backwater surface
解釋
回水面-
The value of correction coefficient of kinetic energy increases as a result. the water surface profiles of flume experiments are computed by three different methods : adjusting the local head loss coefficient, deduction of backwater area, and application of backwater expression
隨后結合實測水位資料，通過採用調整局部水頭損失系數、扣除回水面積以及壅水公式等不同的水面曲線計算方法對實驗水槽一維水面曲線進行計算。 -
Only the method for using backwater expression can predict the variation of water surface near the spur dike very well. numerical simulations of the flume experiment cases are carried out with the standard k - e turbulence model
隨后採用標準k一e紊流數學模型，依據水槽試驗資料，數值模擬了繞壩和漫壩兩種情況下水流的流動過程。 -
The experiment data shows that the region with large surface gradients in longitudinal and horizontal direction locates at the vicinity of spur dike. backwater appear upstream the spur dike, and there exist a recirculation area at the same side downstream the spur dike
實測水位資料表明水流縱橫向比降大的區域位於丁壩上下游附近，在丁壩的上游出現壅水，下游存在有收縮區和恢復區，離丁壩越遠縱橫向水位的變幅越小。
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