The main work in this paper includes three parts : the theory research on partially - cavitating and super - cavitating axisymmetric bodies, the numerical computations and experimental investigations on partially - cavitation and super - cavitation on axisymmetric bodies. after finishing the study of theory and experiment on the partially - cavitation and super - cavitation for axisymmetric body, i use the potential flow theory to build the mathematical model on the partially - cavitation and super - cavitation for axisymmetric body. many cavity wake models, such as pressure recovery close model, riabouchinsky model and re - entrant jet model, are studied seriously
本文在深入研究了回轉體局部空化與超空化理論及實驗結果的基礎上,基於勢流理論,建立了回轉體局部空
泡和超空
泡流場的基本數學模型,通過對kinnas和fine 、 uhlman以及jiedang和gertkuiper等人基於二維水翼提出的壓力恢復閉合模型、鏡像板模型和回射流模型等空
泡尾流模型進行了逐一的研究分析,發現其中的壓力恢復閉合模型較適用於模擬回轉體空
泡尾部流場,並選用此空
泡尾流模型作為求解回轉體空化流場正問題與逆問題的數學模型的組成部分。
When the propeller operates in the spatially non - uniform velocity field behind the ship, the unsteady cavitation on the blades often causes the vibration of ship structure, the propeller noise and the cavitation erosion on the blade
在船
尾非均勻流場中工作的螺旋槳,常常由於槳葉上產生了非定常空
泡,導致船
尾振動和螺旋槳噪聲,致使槳葉表面出現空
泡剝蝕。
Evaluation of ultrasonic monitoring follicular growth and ovulation in new world monkev cebus apella
卷
尾猴的卵
泡生長發育及排卵的超聲監測
Its appearance offers a new alternative deal for the rotten - tail building came from the industry foam and a new method for the hotel enterprise whose vacancy rate is high
它的出現為房地產
泡沫過后的爛
尾樓工程的處理以及酒店行業空置率過高的企業提供了一種新的方法和思路。
The snakes ' pointed tails issue from a lotus flower, which, without much imagination, can be interpreted as the socket of the bulb
蛇尖尖的
尾巴從蓮花里伸出來,用不著更多聯想,就可認為蓮花是燈
泡座。
I have thoroughly solved the compass leaking bubble technical issues. from shanwei city industrial development co., ltd. - how to develop woodroffe latest " - - automatic liquid bubble row compass. " fundamentally resolve of the international maritime history have blisters compass leakage problems
我公司徹底解決了羅盤漏水產生氣
泡的技術難題,由汕
尾市城區展輝實業發展有限公司總經理何展輝先生最新研製的「自動沖液排氣
泡羅盤」 ,從根本上解決了國際航海史上羅盤漏氣產生水
泡的難題。
Foam technology in underground backfilling and surface tailings disposal
尾礦發
泡輸送技術
There are vesicles outside the axonemes
尾部靠近軸絲外具囊泡。