reynolds effect 中文意思是什麼

reynolds effect 解釋
雷諾效應
  • reynolds : n. 雷諾茲〈姓氏〉。
  • effect : n 1 結果。2 效能,效果,效力,效應,作用,功效;影響。3 感觸,印象;外觀,現象。4 旨趣,意義。5 ...
  1. The effect of reynolds number on rudder hydrodynamic performance is also analyzed. up to the stall angle the computed lift and drag agree well with measurements and other author ' s calculations, whereas stall angle, lift and drag beyond the stall angle are slightly under - predicted. the solver is used to investigate laminar and turbulent separated flows around a 6 : 1 prolate spheroid at high incidence angles and their effects on hydrodynamic forces

    應用所開發的求解器,以naca0015翼型舵為算例計算了船舵在不同雷諾武漢理三;大學博士學位論文數下大舵角范圍內的三維粘性流場及水動力,成功地預報了舵的失速角和最大升力,並初步探討了雷諾數對舵水動力的影響;計算結果與現有試驗和計算數據比較,吻合程度相當好,初步檢驗和驗證了該求解器精確模擬粘性流動和計算水動力的能力。
  2. Effect of reynolds number on turbine cascade flow

    雷諾數對渦輪葉柵流動的影響
  3. The blade inner channel cooling is a complex convection - conduction coupling problem. this thesis build a three - dimension. compressible turbulence model, and give a general solve method. with the geometrical model of the glossily rectangle straight channel, the rectangle straight channel with in - line arrays disturb plates, the rectangle straight channel with staggered arrays disturb plates, the rectangle straight channel with slant disturb plates, this thesis compute the flow and heat transfer condition when the cold air path though these channels, and gain the temperature field, pressure field, velocity filed, in addition. this thesis also analyze the influence of the different channel height, the different channel materials, the different channels, and gain the function relation between he nusselt number, friction factor and reynolds number. this thesis is emphasis on the new heat transfer enhancement structure, that is, disturb plates, with the comparison with the glossily channel and channel with pin fins, the heat transfer enhancement effect of the former is better, and the conclusion can be used in the design of aircraft blade

    葉片內部通道冷卻是一個復雜的對流?導熱耦合傳熱問題,本文在分析葉片內部通道冷卻的流動與傳熱情況的基礎上,建立了三維、可壓縮紊流的物理模型,得到了通用的求解辦法;利用不帶擾流片的矩形直通道、帶順排擾流片矩形直通道、帶叉排擾流片、帶傾斜擾流片的矩形直通道的幾何模型,計算了冷卻空氣通過這幾種通道時的流動與換熱情況,得到了各種不同情況下計算區域的溫度場、壓力場、速度場;在此基礎上分析了不同的通道高度、不同的葉片通道材質對葉片內部通道冷卻的影響,並整理得到了各種通道形式下,努謝爾數和阻力因子與雷諾數的函數關系;本文重點研究了新型的葉片內部通道冷卻強化傳熱措施?帶擾流片的內部冷卻通道的強化傳熱效果,通過與光滑矩形直通道、帶針肋通道的冷卻效果的比較,表明了這種新型鮚構的優勢,對于葉片內部通道冷卻結構的設計可以起到指導的作用。
  4. In accordance with different tripping annulus at the inlet, the numerical simulations of the reattachment length were performed with the " variable c ? " model. in the range of experimental reynolds number, the tripping effect on the reattachment length was developed in the figure. the dependence of the reattachment length on reynolds number was also analysed in the different status of pipe flow

    利用變模型常數的-模型針對不同尺寸的擋環進行了再附著長度的模擬計算,在實驗雷諾數范圍內,建立了入口處擋環對再附著長度影響的變化曲線,分析了再附著長度在不同的管流流動狀態下相對于雷諾數的變化情況。
  5. When there is no impingement, the investigation about flow extravasation effect form film cooling holes is carried out with different cross flow reynolds numbers and different density flow ratios of the film outflow to cross flow

    在無沖擊射流時,通過改變來流雷諾數、氣膜出流與橫流密流比,對氣膜孔的「溢流效應」進行了研究。
  6. The experimental results of the flow characteristics of the mmc heat sink indicate that the critical reynolds number signifying the transition from laminar flow to turbulent flow is in advance ; under the same experimental conditions, the variation in entrance direction of the microchannel inlet and outlet has little effect on the microchannel ; the experimental values of the friction factor of the de - ionized water in a microchannel agree well with those calculated using the theoretical laminar formula ; furthermore, a comparison of the experimental results and simulation results shows that navier - stokes equation and rng - turbulence model can be used to model the laminar and turbulence flow regions in a microchannel ; meanwhile, the correlations of the flow resistance in the turbulent flow regions for the de - ionized water as the working fluids are obtained from experiments

    對歧管式單通道熱沉流動特性的研究結果表明,微通道內流體流態由層流向紊流轉變的臨界雷諾數提前;改變流體的進出口方向對熱沉總壓降造成的影響很小;摩擦系數的實驗值與理論值較接近;數值模擬結果能夠與實驗值較好吻合;並由實驗給出了紊流區流動阻力的實驗關聯式。此外,選用十二烷基硫酸鈉( sodiumdodecylsulphate , sds )以及烷基多糖苷( alkylpolyglycoside , apg )作為減阻添加劑,研究了表面活性劑添加對微通道流動特性的影響。
  7. Based on reynolds equation and solid particles carrying model, a theoretical model for piston ring - cylinder liner lubrication in liquid - solid lubrication had been proposed. the effect of solid particles " diameter and concentration are introduced in the model. the influence of the particles " diameter and concentration on load, film thickness and friction force had been analyzed

    基於reynolds方程及顆粒承載模型,引入顆粒直徑、濃度等參數,並建立了分析液固二相潤滑下活塞環?缸套摩擦副潤滑狀態的模型,探討了不同顆粒直徑和濃度對承載、油膜厚度及摩擦力的影響。
  8. The anisotropy invariant map was also introduced briefly. the effect of the distance away from the wall and the reynolds number on the turbulence structure in a pipe flow was also analysed

    介紹了湍流不變量圖在圓管湍流研究中的應用,分析了離壁距離和雷諾數對管流湍流結構的影響。
  9. A vertical two dimensional model for thermo stratified flows is proposed, which solves the velocity and pressure by a fractional step method, and large eddy simulation model is used to calculate the reynolds stress and turbulent diffusion effect

    摘要建立立面二維水動力學與水溫耦合模型,用分步法求解流速和壓力,採用大渦模型計算紊動應力和紊動擴散。
  10. The effect of the change of surface elevation on the wave development and elimination is pointed out for the first time, which provides the necessary theoretical basis for the development of united current - wave - tide model ; hi the discussion of the effects of waves on currents, a variety of wave - induced forces on the geostrophic and viscous condition and their producing mechanism are introduced systematically, their corresponding wave - induced currents are also analyzed qualitatively. moreover, a complete expression of wave - induced reynolds stresses tensor is presented for the first time

    在浪對流作用的討論中,系統的闡述了海浪在地轉作用和粘性條件下所產生的各種作用力,詳述了它們的生成機制,並定性的分析了相應的波生流,同時,首次提供了地轉條件下浪致雷諾應力張量的完整表達式,為實現海流模式與海浪模式的并行數值計算提供了一種簡便的途徑。
  11. The results show that the effect of reynolds number on the wind pressure distributions of these curved models is evident, and the contributions of the first several pod eigenvectors to the overall wind pressure distributions become much bigger

    結果表明,此類曲面模型表面風壓分佈受雷諾數影響明顯,且模型曲面特性使得風場本徵正交分解的前幾階特徵模態對整個風壓分佈的貢獻增大。
  12. The method of prediction the discharge coefficients of film cooling holes on the turbine blade suggested by d. a. rowbury et. al has been improved in this paper to fit the computations in the cases of low pressure ratios and the holes in leading edge region especially. the effects of external cross - flow, hole geometry and reynolds number in the hole were taken into account. an additive loss coefficient method is subsequently applied to the test data in order to assess the effect of the external cross - flow

    Rowbury等提出的流量系數工程演算法進行了改進,計算結果和實驗數據的比較表明改進后的新模型使低吹風比和前緣駐點附近流量系數的計算得到了明顯的改進,而在高吹風比下仍能保持與實驗數據相符,這種演算法有可能成為低壓比情況下型面氣膜冷卻的一種通用設計方法。
  13. The effect of the pressure gradient on critical reynolds number is also displayed and the influence rule of the different pressure fields on the flow stability is exploited

    還研究了壓力梯度對臨界雷諾數的影響,探討了不同壓力場對流動穩定性作用的規律性。
  14. Study on the reynolds number effect of two extreme bridge sections

    極端橋梁斷面雷諾數效應研究
  15. By using a reynolds - averaged two - dimensional computation, the effect of upstream wake on unsteady separated flow field of downstream adjacent vanes was investigated in low - speed axial compressor

    摘要利用二維數值模擬研究了低速軸流壓氣機上游尾跡對下游相鄰葉排的非定常分離流場的影響。
  16. So was the effect of net flow reynolds number by the observation of experimental phenomena and the analysis of experimental data, it showed that the oscillatory parameters re0 and st had strong correlation with the injection dispersion performance

    通過觀察實驗現象以及分析實驗數據,發現振蕩特性參數re _ o和st對注入分散特性有很強的聯系。
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