free-flow tunnel 中文意思是什麼
free-flow tunnel
解釋
明流隧洞-
This turbulence caused the flow pattern in the tunnel to be similar to the flow pattern in free air at a higher reynolds number.
這種紊流使風洞內的流譜與在較高的雷諾數下自由氣流中的流譜相似。 -
Finite volume method is appilied in numerical modeling of the flow in no - pressure tunnel of high water reservoir in this paper. i select standard k - turbulence modeling that put forward by launder and spalding in 1972 by weighted poly - turbulence modeling. the difficulty is that there is free surface in flow, but free surface problem ' s calculating region is indefinitely
本文利用有限體積法對高水頭下水庫無壓泄水洞水流進行了紊流數值模擬，根據多種紊流模型的優缺點進行比較，選擇了launder和spalding於1972年提出的標準的k ?紊流模型。
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