您要查找的是不是:
- On the basis of hydrodynamics, the vortex shedding condition was investigated. 摘要根據流體力學原理,分析靜止管道的旋渦脫落;
- Such parameters of flow characteristics are investigated as lift and drag coefficient and vortex shedding frequencies. 計算了圓柱的升阻力係數、尾渦脫落+頻率等描述繞流問題的主要參量。
- The most important aeroelastic behavior of high-rise buildings are some special phenomena due to vortex shedding in the across-wind direction. 高層建築的氣彈力行為中,主要在於橫風向上受渦漩作用所產生之一些特殊現象,本文針對順風向、橫風向變位及鎖住現象進行探討。
- It is found that a steady wind of Beaufort force 6 may cause vortex shedding of a frequency coinciding with the second bending frequency of the structure. 然後,在發生風致振動的實際條件下,測量了振動頻率和振型以及當時的風速,確認振動的原因是一種流固耦合作用形成的風的尾流脫落激勵引起結構共振。
- The fluctuate drag and lift forces of tree branches in wind due to vortex shedding were estimated using the vortex induced vibration theory of circular cylinder. 採用圓柱繞流的渦致振動理論估算了樹枝在風中因旋渦脫落而引起的脈動升力和阻力;
- The numerical results demonstrate that Reynold number is the major factor controlling the flow.Under different high Reynolds numbers, there is different vortex shedding condition. 通過數值分析,得出在繞流問題中雷諾數是決定流型的主要因素,在不同的雷諾數下,旋渦脫落也隨之不同;
- Based on vortex shedding flowmeter work theory and manufacturing technique,we used positioning fixture to fill with the technique requirement,guarantee the quality and raise efficiency. 根據渦街流量計的工作原理和生產工藝流程,提出了其在生產過程中的關鍵工藝問題,應用定位夾具來滿足相應的技術要求,以保證質量和提高效率。
- This paper puts enough emphasis on the similarity in analyzing the mean velocity over a long period of time (where the long period is referred to as a cycle of the Karman Vortex Shedding). 從相似性的角度,對流速在尾流擺動一個周期內的平均值進行了分析。
- Finally, the characteristics of the vortex shedding in the wake are analyzed.Under the given experimental condition, the conclusion is drawn that the Strouhal number keeps the constant of 0.2. 對圓柱尾跡的旋渦脫落特性進行了分析,得出在試驗條件下斯特勞哈爾數保持為常數0.;2的結論。
- vibration induced by vortex shedding 渦激
- The vortices shedding frequency calculation model proposed by this paper can be used to predict the shedding frequency of the Karman vortices for hydraulic turbines design. 本文建立的水輪機固定導葉和活動導葉后卡門渦頻率預估模型,可在設計階段進行葉片繞流卡門渦頻率的預估。
- Design of Embedded Digital Intelligent Vortex Shedding Flowmeter 嵌入式數字智能渦街流量計的設計開發
- In the picture a man is seen observing a meter. 你在圖中可以看見一個人在觀察儀錶。
- Large eddy simulation of vortex shedding for model SRM 模型固體火箭發動機內渦脫落過程的大渦模擬
- Do you remember the reading on the meter? 你記得表上的讀數嗎?
- The boy is one meter tall in his stocking feet. 這個小男孩不穿鞋的身高是一米。
- Fantastic, he cleared2.4 meter without difficulty. 好極了,他輕鬆地越過了2米4。
- Follow the railroad track about100 meter. 順著鐵路走大約100公尺。
- Some analysis must be done previously for coupling analysis of flow and structure, such as characteristics of complex unsteady aerodynamic force, vortices shedding frequency, vibration mode and vibration characteristic of blade, etc. 分析葉輪機械通道內部複雜非定常氣動力特徵和旋渦頻率特性,掌握葉片的振動特性、葉片的振動模態,是採用流/構耦合分析研究葉片振動的前提。
- He broke the record for the one-hundred meter dash. 他打破了百米賽跑紀錄。