紊流理論 的英文怎麼說

中文拼音 [wènliúlǐlún]
紊流理論 英文
theory of turbulence
  • 紊 : 形容詞（紊亂） disorderly; confused
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 理 : Ⅰ名詞1 （物質組織的條紋） texture; grain （in wood skin etc ） 2 （道理;事理） reason; logic; tru...
  • 論 : 論名詞（記錄孔子及其門徒的言行的「論語」） the analects of confucius
  • 紊流 : burble
  • 理論 : theory
  1. Typical variable windfield models, such as large scale steady wind flow, downburst, turbulence, airflow over mountain, are developed and their physical specialities are discussed. furthermore, simplex modules are integrated to form complex model. facticity and application technique to flight simulation are discussed

    討論了以下幾種典型風場模型（大尺度均值風模型、 dryden紊流模型、微下擊暴流模型和過山氣流模型）的物理特徵與建模方法，並對單一模型進行復合，建立變化風場模型庫，最後討論了各種模型的真實性與如何應用於飛行模擬； 3
  2. Study on pulsating stress of turbulence with strange attractor theory

    用奇怪吸引子理論研究紊流脈動壓力特性
  3. By performing fourier transformation, the relationship between the turbulent intensity of the particle and that of the carrier fluid was obtained which makes clear that particle size, specific gravity, velocity gradient, and the characteristic frequency of energy - containing eddies are four basic influencing parameters. it is proven theoretically that under certain conditions, the stream - wise and transverse particle turbulent intensities exceed those of the carrier fluid. based on the equations of two - phase flow, the presence of fine sediment suspension is shown to attenuate the turbulent intensity of the water

    通過對細小顆粒在剪切流場中運動方程的fourier分析，得到了顆粒脈動強度和流體脈動強度之間的定量關系，表明顆粒粒徑、顆粒密度、流速梯度以及紊動場含能旋渦的特徵頻率是影響顆粒脈動強度的主要因素，首次從理論上證明了在一定條件下，顆粒在縱、垂向的脈動強度均會超過相應的流體脈動強度，為已有的實測資料提供了合理的解釋。
  4. In the tidal estuary, the current is complex, and the flow is oscillatory. some experiential formulation has presented to calculate the vertical turbulent mixing coefficient. on the base of analysis of the hydrodynamic in the estuary, the theoretical equation, which describes the distribution of the space and time of vertical turbulent exchange coefficient, has developed, the equation has applied to the practice

    潮汐河口水流呈往復振蕩運動，本文在分析潮汐河口水動力特性基礎上，考慮了慣性力及重力等項的影響，通過理論推導得到潮汐河口垂向紊動交換系數的空間分佈及時間分佈的計算公式，以及垂向平均紊動交換系數的時間分佈的計算公式，並將其應用於潮汐河口的實際計算中。
  5. Secondly, the relation between nusselt number and the local time - averaged velocity and temperature fields of turbulent convection was theoretically induced, which expands the field - coordinated enhancement principle to turbulent convective heat transfer

    然後，在理論上導出了紊流對流換熱的整體換熱性能與局域時均速度場和時均溫度場的一般關系式，將對流換熱的場協同強化原則擴展至湍流換熱。
  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. Referred and analyzed the developing and researching achievement of high turbulent combustion chamber on diesel engine in the world, the grooved combustion chamber is designed and developed based on the rationale of designing high turbulent combustion chamber and employed the effect of the grooved of the combustion chamber wall on the spray impingement

    在分析和參考國內外柴油機高紊流燃燒系統開發研究成果的基礎上，根據高紊流燃燒室設計的理論基礎，利用矩形環槽對燃油噴霧撞壁效應能加速混合氣形成的機理，設計開發了在燃燒室側壁上加工有矩形環槽的燃燒室方案。
  8. On the base of summarizing the results, the law of vertical turbulent mixing and transportation in the natural river is researched and applied in numerical model through the theoretical derivation combined with analysis of the data of measurement in this dissertation

    本文在總結分析前人研究成果的基礎上，通過理論推導、現場資料分析和數值模擬相結合的方法，著重研究天然河流中物質的垂向紊動混合、輸移的基本規律，並將這些規律運用於數學模型的數值計算中。
  9. For dilute solid - liquid two - phase flow, the mechanism of particle motion driven by fluid is the main subject, especially the particle motion in the near wall region. the bursting phenomenon and coherent structure of turbulence play an important role on the motion of particles in the near wall region

    明槽紊流近壁區的顆粒運動與紊動猝發現象及紊流相干結構有著密切的關系，開展近壁區顆粒與紊流相互作用的機理研究對于流體力學和泥沙運動力學都有著重要的理論意義和實際價值。
  10. By analyzing flow status of fluid in aerating pipeline, giving up hydraulics and utilizing hydromechanics and advance numerical calculations, the prediction method to solve optimizations height on flow status in aerating pipeline is studied and put forward, which provides a scientific theory base to realize effective drag reduction and economic principle in blend phase transportation for pipeline design

    摘要通過分析摻入少量高粘流體形成分層紊流層流的流動狀態，拋棄傳統的水力學研究方法，應用流體力學原理、高級程序設計語言和先進的數值計算技術研究了摻入少量高粘流體分層紊流層流減阻規律，為實現管道混相輸送時高效減阻和經濟節約的設計提供理論依據。
  11. In this paper, hydromechanical theories, three - dimensional unsteady turbulent finite volume model and pheonics software are adopted to simulate the pressure field and the velocity field of the drainage pipe in allusion to the actuality of the necessary pressurization test before being used. then analyze the computational results and figure out the variational rules of pressure and velocity with different leakage location while close water test or close gas test is applied

    本文針對無壓管道交付使用前必須進行嚴密性試驗的現狀，運用流體力學基本理論和三維非穩態紊流的有限體積模型，採用pheonics計算軟體，數值模擬不同管徑下不同漏水點的滲漏情況，模擬閉水和閉氣試驗時管道內部的壓強場和速度場的變化，並分析計算結果，從中找出其變化規律。
  12. We successfully apply the two - fluid model ( tem ) and kinetic theory of granular flow studying the two dimensional dense gas - solid flow characteristics in the large scale circulating fluidized beds and the cold experimental system with piv. the results of simulation are in accord with others " simulation and experimental results. in the end, we make the three dimensional simulation for the cold cfb riser, which is closer to the factual operation and this experimental results

    在對高濃度氣固兩相流的研究中，根據fluent軟體現有的條件和解決工程實際問題的需要，採用單氣固相雙流體歐拉模型，採用模擬紊流固粒流中普遍接受的方法「顆粒流的運動理論（ kinetictheoryofgranularflow ） 」 ，對大尺度循環流化床進行了二維數值模擬，與他人數值模擬結果和實驗結果進行了對比，檢驗模型的準確性。
  13. Parameters influencing aerodynamic flows and transition and influence of boundary layers on outer potential flow are presented, along with associated stall and drag mechanisms

    而邊界層理論受限於各種流體種類的假設，像是可壓縮性、紊流、維度和熱傳。
  14. One of the most important innovations in his analysis was the application of the theory of probability to account for the statistical variation of the agitating forces on bed particles caused by turbulence

    在他的分析中其中一個最重要的革新，是應用在紊動流場的攪動力作用於河床粒子時去計算統計上變量的概率理論。
  15. Over the years, space physicists have come up with various ideas of greater complexity : perhaps, they reasoned, flares result from many different currents coming together or from a volume of turbulent plasma waves and the random electric fields associated with them

    許多年來，太空物理學家提出了很多更復雜的想法：他們推論日焰也許源自許多不同電流的集合，或者來自於大量紊亂的電漿波與伴隨其間隨機無規的電場。
  16. P. r. c abstract the study of the turbulent mixing and transportation in the natural river is of theoretical and practical importance. plenty of indoor and outdoor experiments, theoretical analysis and application research on this object have been performed, and have bought about a lot of results by many investigators

    天然河流中的紊動混合及輸移規律，是一個在學術上及應用上都具有重要意義的研究課題，國內外學者曾進行大量的室內外的實驗、理論分析和應用研究，取得許多研究成果。
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