wall flow 中文意思是什麼
wall flow
解釋
壁面流-
Rifled or other pipe wall corrugation may change the flow from a hetero－generous to a homogeneous regime by introducing a secondary circulation.
在有來復線的或其它的管壁皺紋的管中，由於引起副流，可能將非均質流轉變為均質流。 -
By comparing the dry plate pressures drop and distributions of velocities simulated on single valve with those of double valves, it was found that there was intense turbulence in the flow fields around fixed - valve, there were eddy areas between valve side orifices and tray wall, there were eddies above the valves too, these led to the complex behaviors of gas perforating valve, these had a great effect on the gas - liquid mass transfer process. at the same time, in order to prevent the disadvantageous effect of gas between one valve with another on the gas - liquid mass transfer, it was very effective to change the fields of gas perforating valve by folding the edges of valve
通過對數值模擬得出的單閥和雙閥塔板的干板壓降及流場速度分佈分析對比后發現，固定閥周圍流場存在較強的湍動，閥側孔與塔板壁面區域以及閥體的上方空間存在明顯的渦流區，使氣體穿閥后的行為變得復雜，並對氣液傳質過程產生重大影響；模擬結果表明，為防止和削弱固定閥間的對沖造成的「死區」對傳質帶來的不利影響，通過折邊來改變氣體的氣路是非常有效的，模擬值與實驗值基本得到吻合。 -
Water flow measurement in open channels using thin - wall weir
用薄壁堰測量明渠中水流量 -
The inside fashion of the sway oil pump stator is complex, its wall thickness is pockety and the metal flow law is difficult to master. at the present time, the investigation of warm extrusion forming technique for the nonuniform wall thickness forging has few to been done. the forming technique and die configuration which use for production have not achieve optimization
由於轉向油泵定子的內部形狀復雜，零件壁厚分佈不均，金屬流動規律難于掌握，目前人們對這種非均勻壁厚鍛件的溫擠壓成形工藝研究幾乎沒有，其成形工藝及生產用模具結構並未達到最優化。 -
According to the above theories, with using the software - deform - 3d, we have made the numerical analog simulation and analyse the warm extrusion forming technique process for sway oil pump stator, optimized the forming : technique and the die parameter for the pockety wall thickness forging this paper concretely analysis and research metal flow ' s characterize in different forming processes
本課題根據上述理論，利用有限元數值模擬模擬軟體deform - 3d ，對轉向油泵定子溫擠成形工藝過程進行模擬模擬分析，優化了油泵定子的成形工藝及模具參數。 -
Plug the flow regulator into the wall and attach the nebulizer.
將氣流調節器插頭接通墻上電源，並連接噴霧器。 -
Standard specification for 12 to 60 in. 300 to 1500 mm annular corrugated profile - wall polyethylene pipe and fittings for gravity - flow storm sewer and subsurface drainage applications
自流式雨水管和地下排水裝置用12至60英寸300 to 1500 mm環形波紋狀異型壁聚乙烯管和配件的標準規范 -
Abstract : based on the research of ladle flow field, the steel flow i ng low of six strands small billet cc ladle is researched, the methods improves s teel flowi ng in the ladle by setting separating and blocking slag wall, separates the steel from the slag, increases the bluyance rate of inclusion, achieves the desired results, and applies itself to the practice
文摘:在中間包流場分佈分析的基礎上，藉助水模擬試驗研究了6流小方坯連鑄中間包內鋼水流動規律，通過設置分流擋渣墻改進中間包內的鋼水流動，分離鋼水和爐渣，提高鋼中夾雜物的上浮率，達到了預期的效果，並應用於生產實踐 -
The effect of air distributor on the flow fields was studied with emphasis. the working conditions of the bubble column simulated in the numerical study were as same as in the experiments. the velocity profile at axial direction showed a peek in the center, and a backward flow near the wall when usl / usg < 19. 6
鼓泡塔內軸向液相速度的徑向分佈呈塔中心峰值、壁面附近倒流形式，且與氣相折算速度大小有關，當液相折算速度一定時，隨氣相折算速度增大而愈加陡峭，返混也劇烈。 -
The filter constructed with wall - flow webby stainless steel coils by author experiments on 165fa diesel engine and demonstrates better regeneration effect
試驗在165fa柴油機試驗臺上進行，應用了壁流式不銹鋼絲網濾芯的過濾器，並取得了良好的再生效果。 -
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 thermal visualizations of jet impingement cooling with single or double row holes inside semi - enclosed channel are measured by using infrared camera and then the impingement cooling heat transfer coefficients are deduced. the effects of flow and geometry parameters on convective heat coefficients are obtained. the results show that : for a single row normal impingement, the impingement cooling effectiveness is enhanced with the increase of impinging reynolds number or the decrease of hole space to diameter ratio, and the best effectiveness is achieved under the jet - to - surface spacing equals to 2 ; when the jet is oblique to the confined wall, the cooling effectiveness is weaken especially under the jet - to - surface spacing ratio is greater than 2 ; for double rows normal impingement cooling, the cooling effectiveness of rear row jet is weaker than the front row under lower impinging reynolds number or bigger jet - to - surface spacing
對于單排垂直射流，沖擊冷卻效果隨射流雷諾數的增加、孔間距與直徑比的減小而得到提高，沖擊間距比為2時換熱效果最好;沖擊孔中心線向通道封閉一側傾斜后，射流沖擊冷卻的范圍變窄，當沖擊間距比大於2時駐點區的對流換熱能力明顯降低;對于雙排沖擊射流，孔排間距與直徑比的增加使沖擊冷卻范圍變大，但在兩排孔之間區域的對流換熱系數有所下降;在較小的沖擊射流雷諾數和較大的沖擊間距比下，後排射流的沖擊換熱效果要遜於前排射流。 -
In this paper, the flush function is divided into two aspects. one is the process flushing the inner wall of the closet bowl ; the other is the discharge of the dirty objects under the action of water flow
針對其功能，本文將坐便器的沖水過程分解為兩方面進行研究，其一是對水包內壁的沖刷過程，另外則是在水流沖力作用下的排污過程。 -
In extensional flow fiber tended to perpendicularity to the streamline, while in shear flow and convergent flow fiber tended to parallel to the streamline in the thin wall caving
在薄壁型腔的擴張流中，短纖維趨于與流線方向垂直，而在剪切流和收斂流中趨于與流線方向一致。 -
The modified multi - zonal model had three parts, i. e. a wall flow module, a plume flow module and a heat moving module
修改後的多區熱質平衡模型包括3個模塊，即壁面流模塊、熱羽流模塊和熱移動模塊。 -
Experimental and numerical study of wall flow pattern of turbine cascade with tip clearance
有間隙渦輪葉柵壁面流譜實驗與數值模擬研究 -
The complex vortex system structure and shock wave system structure inside this rotor is obtained. wall flow patterns on the blade surface and hub surface are found out. the complex vortex system structure, such as horseshoe vortex, passage vortex, corner vortex and trailing vortex, and the interaction with shock wave system are researched. especially, the character of the tip clearance flow inside the rotor passage is revealed, and the interaction between shock wave and tip clearance flow near blade tip and the evolution of tip clearance flow are considered
給出了葉片表面及輪轂面上的壁面流型，分析並揭示了轉子葉道內的馬蹄渦、通道渦、角渦、尾渦等復雜渦系及其與激波的相互干涉；特別是，分析並揭示了轉子葉道內頂隙射流的特點，得到了頂隙附近激波與泄漏流動的干涉形態及泄漏流動的發展，並著重給出了其與激波的干涉形態。 -
In the experiment, the infrared radiation and axial distribution of wall temperature and near wall flow pressure were measured with and without film cooling
得到了各冷卻方案噴管的壁面壓力分佈、壁溫分佈和紅外輻射特性。 -
In this paper, a cfd simulation model for steady flow in the honeycomb wall - flow ceramic monolith filter element of a diesel particulate trap is established and solved with discretization and segregated solver
摘要研究的柴油機微粒捕集器採用目前應用最為廣泛的壁流式蜂窩陶瓷作為過濾體，根據其結構對稱性和內部流動數學模型，建立了穩態層流的過濾體內部流動cfd模擬模型，並運用離散格式分離求解器進行求解。 -
The results showed : the cooling had significant influence on the near wall flow pressure, and the influence was different with cooling schemes
結果表明：冷卻氣流對噴管壁面壓力分佈影響較大，不同冷卻結構的壁面壓力分佈特點不同。
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