spiral flow 中文意思是什麼

spiral flow 解釋
螺線流
  • spiral : adj 1 螺旋形的，盤旋的，盤旋上升的。2 【數學】螺線的。n 1 螺旋形物。2 螺簧；【物理學】螺線。3 【...
  • flow : vi 1 流，流動。2 （血液等）流通，循環。3 流過；川流不息；（時間）飛逝；（言語等）流暢。4 （衣服、...
  1. On the other hand, it is indicated that the velocity field consists of a depth - independent inertial oscillation and a time - mean shear flow, which can be obtained by subtracting the inertial oscillations time mean in one inertial period. the hodograph of the velocity vector of time - mean flow at the different depths consists of a ekman spiral, and the surface velocity is 30. 3 ? to the right of the wind

    一維模式的流場結果表明，混合層中的流場是由慣性波動與時間平均流兩部分疊加而成，且通過時間平均消去慣性波動后得到平均流，其不同深度的流速矢量構成一ekman螺旋，表層流速矢量相對風向右偏了30 . 3 』 。
  2. Whatever the “ magic bullet ” model, “ two - step flow ”, “ uses and gratifications ”, or “ agenda - setting ”, “ the silence spiral ”, all provide precious theoretical and empirical studies for us

    無論是「魔彈論」 、 「兩極傳播」 ， 「利用與滿足理論」 ，還是「議程設置」 、 「沉默的螺旋」 ，都為大眾媒介的研究提供了寶貴的研究範例。
  3. In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively

    本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討，取得以下主要成果：一、結合小灣工程導流洞改建，對高水頭（ 252m ） 、大泄流量（ 1400m ~ 3 s ）條件下旋流式豎井中的水流運動特徵進行了比較全面的測量，包括空腔形態、徑向流速分佈及井壁壓強等；二、提出了豎井空腔段螺旋水流水力計算方法，其計算結果與實測值吻合良好；三、利用試驗與計算結果，對旋流式豎井的消能機理進行了探討，對豎井各部分的消能能力有了總體認識；四、對豎井下部消力井的合理井深進行了優化試驗研究，發現消力井合理深度為0 . 9d左右；五、通過試驗研究，歸納出豎井水流總摻氣量估算方法，為導流洞排氣方案的設計提供了參考依據；六、在高水頭、大流量條件下，豎井空腔段下部流速很高，盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓，但空化數依然較低，因此豎井的空化空蝕始終是工程界關注的重大問題。
  4. We thought that the flown line ' s distortion to the same direction is one of necessary condition to spiral flow. the mechanism of spiral flow we deduced can explain many phenomena, we prepare to declare patent of the set of spiral flow generator which invented in the paper. our conclusion is based on experiment, it can offer foundation to advanced research

    本研究的結論是在實驗的基礎上得來，具有一定的推理性質，它為今後進一步的深入研究提供武漢理工大學碩士學位論文實驗的基礎上得來，具有一定的推理性質，它為今後進一步的深入研究提供了一個基礎，也有待於今后進一步的驗證。
  5. Research on flow field characteristics of vertical vortex with multi - circle spiral flow

    立軸旋渦多圈螺旋流場特性研究
  6. Numerical simulation of three dimensional gas - particle flow in a spiral cyclone

    螺旋型旋風分離器兩相流場的數值模擬
  7. 08. 02 test method for spiral flow of low - pressure thermosetting molding compounds

    低壓熱固性模塑料的螺線流動度的試驗方法
  8. Other nonlinear phenomena we studied include spiral wave dynamics in chemical reaction ( chi - keung chan ) ; pattern formation in fracture phenomena ; collective behavior of driven and self - propelled particles ( kwan - tai leung ) ; and jamming of granular flow in hoppers ( kiwing to )

    另外，我們也研究物質斷裂中之裂紋路徑與網路圖型形成機制，及因自我或被驅動之粒子的集體運動行為所產生的相變現象（梁鈞泰） 。
  9. Based on the navier - stockes equation, the finite difference method was applied to variance the simplified n - s equation on cylindrical coordinate system. then, 3 - d model of the spiral flow locally generated in circular pipe with steady and axial - symmetry condition was founded. the ordinary iterative method of gauss - seidel was induced

    太原理工大學碩士學位論文本文以局部起旋條件下的圓管螺旋流為模擬對象，從以速度和壓強為自變量的微分方程一navier一5tokes方程出發，利用有限差分法對柱坐標系下簡化后的n一s方程進行離散，建立定常的、軸對稱的三維計算模型。
  10. Spiral flow test

    螺旋流動試驗
  11. The results show that spiral flow ventilation is economical in improving air distribution and indoor air quality

    結果表明，旋流通風方式用於改善氣流組織和室內空氣品質是經濟可行的。
  12. Numerical simulation of the 3d spiral flow in girallar pipe

    圓管螺旋流的三維數值模擬
  13. Moreover, spiral flow can be seen frequently in nature, such as tornado

    此外，螺旋流在自然界也是十分常見的，如龍卷風等。
  14. Spiral flow can be seen frequently in nature. it was not only wildly used in industry, but also applied in daily life

    螺旋流在自然界十分常見，在工業方面的應用范圍極廣，也已進入了人們的日常生活領域。
  15. Prof. horii has invented three new types of spiral flow generators. they are applied in area of engineering practice. in this paper, we depicted the actuality and background of this type of spiral flow, illustrated the important significance of its applications in engineering and basic theory

    日本horii教授發明的三種自發生成螺旋流的裝置引起人們研究的興趣，本文敘述了國際上對此類螺旋流研究的現狀和背景，闡明了螺旋流研究在工業應用上和基礎理論上的重要意義，針對「環狀軸對稱開口徑向進流」旋流發生裝置進行了實驗研究。
  16. Standard test method for spiral flow of low - pressure thermosetting molding compounds

    低壓熱固性模塑料螺旋形流動的試驗方法
  17. Tests eight kinds of spiral flow ventilations by experiment and obtains the velocity field and the carbon dioxide distribution

    摘要對8種旋流通風方式進行了實驗測試，分別得到了各種通風方式下的速度場和污染物濃度場。
  18. So it could be concluded that the flow in the tortuous path was really spiral flow, and the experiments showed that the there had many spirals and even reverse spirals coexisted in the path

    但試驗表明，彎道中會存在多股螺旋流，甚至有轉向相反的螺旋流同時共存。
  19. Spiral flow is widely used in industry, e. g. in jet technology, combustion technology, pneumatic transportation, cyclone separators. researchers have done a lot of investigations about spiral flow

    螺旋流在工業方面有廣泛的應用，如在射流技術、燃燒技術、氣力輸送、旋風分離、內燃機等方面均應用了螺旋流，各國研究者對螺旋流進行了廣泛的研究。
  20. Along the axes, the pressure near to the pipe wall is increasing and reducing at the pipe centre. based on the experiment, research on the characteristics of the spiral flow by using numerical simulation is feasible. this paper enriched the theory of sediment transportation by spiral pipe flow

    太原理工大學碩士學位論文在物理模型研究的基礎上應用數值模擬來進一步研究螺旋流特性是可行的，這項研究充實了圓管螺旋流輸送理論，並為其在工程上的推廣應用奠定基礎。
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