radial wall 中文意思是什麼
radial wall
解釋
徑壁-
The radial velocity profile of the liquid is dependent on the superficial air velocity and the column height, and flows from the wall to the center at bottom of the column
徑向液相速度既與氣相折算速度有關又與位置高度有關，在塔底部呈現負值，這意味著向塔軸心方向流動。 -
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。 -
The secretory has thick cuticle, especially more thick cuticle spreaded on the radial wall
頭細胞角質層厚，莖向壁角質層更厚。 -
1. under the same kind of wall rock and the same condition, displacement of pipe liner is symmetry, for tunnel structure and suffered load are symmetry. as level terra stress is bigger, the maximum of displacement and the first main stress occur in tie - in of pipe liner structure, and its direction is radial and points in hole ; the direction of the third main stress is annular and its maximum occurs in top and bottom hole inner
1 、同一類圍巖在同一種工況下，由於結構和荷載的對稱性，管片襯砌結構的位移也表現出對稱性，因水平向地應力較大，位移最大值、第一主應力的最大值發生在管片襯砌結構的接頭處，方向為徑向指向洞內；第三主應力的方向為環向，較大值發生在洞頂和洞底內側。 -
In fluent, the flow field of the tube wall, center, top, middle and bottom of the evacuated solar collector tube can be observed, the temperature - time curve and radial temperature gradient can be obtained, the heat loss of different part can be directly captured. 3. all kinds of effect factors of the flow field and temperature field have been analyzed
通過fluent計算，清楚地觀察到太陽能真空集熱管壁面和中心部分，頂部、中部和底部在各種工況下的流場分佈均不相同；得出了各種工況下的溫度-時間變化曲線，沿軸線方向的溫度梯度；同時還計算了各部分熱損的傳熱流量； 3 -
The solids holdup is lower in the center than in the wall region at the radial positions, and the solids holdup is higher in the lower section than in the upper section of the riser
在徑向分佈上，顆粒濃度呈現中心稀，邊壁濃的狀態。在軸向上，顆粒濃度呈現上稀下濃的分佈。 -
While sol - gel technique was optimized, the yield of swnts was improved and the radial breathing mode ( rbm ) of them appeared in raman spectra. furthermore, we also achieved bulk production of multi - wall carbon nanaotube bundles. the experimental results indicated that the preparation of catalysts played a key role in the yield and quality of swnts
優化了溶膠凝膠工藝，獲得了一種性能優良的催化劑，制備出了較高產量的單壁納米碳管， raman光譜低頻段明顯的單壁納米碳管的徑向呼吸模式（ radialbreathingmode ， rbm ）特徵峰，進一步證實了這一結果。 -
In order to overcome the shortages resulted from hypothesis of small deformation in radial symmetry based on thick - wall cylinder, plane stress and uniform pressure about residual stress around cold - expanded hole, a new model was proposed which takes into consideration the effect of split - sleeve, the different states along thick direction of specimen
摘要針對目前在研究冷擠壓孔邊殘餘應力時，大都採用基於厚壁圓筒的軸對稱小變形、平面應力狀態、孔邊受力為均布載荷等假設所帶來的不足，提出了在三維真實模型狀態下，考慮襯套對孔邊受力的影響、試件在厚度方向上的應力差異等因素。 -
It is also found that the flow developments in all radial locations are not synchronized, but it extended gradually from the core region to the wall, until finally a fully developed flow is achieved across the whole cross - section of the riser. the flow development at the annulus region near the wall, as a control process of the whole flow development in the riser, is much slower, and more sensitive to the change of operation conditions than that at the core region
氣固兩相流動沿徑向的發展並不同步，而是一個由核心區向邊壁區逐漸擴展，最終達到充分發展的過程，該過程主要受邊壁區發展過程式控制制；相對于核心區，邊壁區的發展不僅顯著緩慢，而且受操作條件的影響也較顯著。
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