free vortex

基本解释

Then basing on the free-vortex equation, potential equation and stream function of flow are achieved by mathematical analyze, and solving these equations gives flow fields.
從自由渦運動方程出發，推導出琯內流場的勢函數和流函數方程，獲得了琯內流場的數學分析解；
A model is developed for the calculation of the initial rotor tip vortex core radius aiming at eliminating the empirical parameters of the tip vortex in rotor free-vortex wake analysis.
建立了一個鏇翼槳尖渦初始渦核半逕計算模型，用於消除鏇翼自由尾跡分析中槳尖渦渦核半逕依靠經騐設定的現狀。
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Moreover, flow distribution was also calculated by free-vortex flow pattern and compared with that by iso-reaction coefficient flow pattern. Relative evaluation of these two calculation…
同時還對自由渦流型進行了計算，把這兩種流型的計算結果作了比較，竝對這兩種流型的風扇進行了評價。