尾流理論 的英文怎麼說

中文拼音 [wěiliúlǐlún]
尾流理論 英文
wake stream theory
  • 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
  • 理論 : theory
  1. In this paper, some characteristics of flow movement and sediment transport are analyzed by using the flume experiment data. the cross section of compound channel can be divided into four regions : the undisturbed region in main channel, the interactive region between channel and plain, the undisturbed region in flood plain and the boundary region. in the undisturbed regions, the distribution of longitudinal velocity along the depth has the feature of lograithmic. whereas, in the interactive region, the longitudinal velocity does not obey the logarithmic distribution law, but it can expressed as a revised logarithmic function by using a wake function. on the basis of the kinematic equation the velocity distribution of transverse velocity is obtained. in the boundary region, the longitudinal velocity obeys the law of parabolic distribution. furthermore, according to the simplified diffusion equation, the transverse distribution of sediment concentration in the interactive region is deduced. the analysis is in good agreement with the measured data

    本文根據漫灘水流的運動特點，將漫灘水流的復式斷面分為主槽平衡區、灘槽交互區、灘地平衡區及邊壁區等4個區，並給出了各區寬度的經驗公式.根據灘槽交互區垂線流速分佈的變化特點，提出了附加尾流函數的對數流速分佈公式.在簡化水流運動方程和泥沙擴散方程的基礎上，對灘槽交互區內垂線平均流速及含沙量沿橫向分佈進行了理論分析，提出了反映灘槽水流動量交換強度的橫向渦量粘性系數及橫向擴散系數的表達式，得到了漫灘水流垂線平均流速及含沙量沿橫向分佈的解析解，並與實測資料吻合較好
  2. Based on the green ' s formula and the assumption of the propeller blade ' s thin sections, a lifting - surface method of propellers with the vortex lattice and equal source panel distributions on the mean camber surface has been introduced for the prediction of steady propeller ' s hydrodynamics in this paper. an approximate kurta condition was applied

    基於creen公式和薄翼理論假設導出的升力面方法，採用在螺旋槳拱弧面上分佈離散渦、源布置方法預報均勻流場中的螺旋槳的定常性能，螺旋槳尾渦面上壓力連續性條件採用近似的kutta條件處理。
  3. Wake vortex separation standards are used to prevent hazardous wake vortex encounters which mainly found in the final approach course within the airport termination zone. firstly, this paper analysis the mechanism of the vortex decay and research the influence on the safety of the flight ; then. several different radar wake vortex separation standards are compared and some basic guidelines are developed to establish the future vortex standards. in addition, one kind of advance vortex classification for the civil airplane is proposed. secondly, an encounter hazard model which established for the following aircraft and a simple vortex decay model which mostly concern with the proceeding one are developed ; and a safe separation model can be derived from the both. finally, through the simulation calculation, the correctness of the vortex classification of different types of aircrafts are tested and proved

    本課題對雷達管制條件下的最小尾流間隔標準進行了較為詳細的分析和研究；首先對尾流的形成和消散機理以及尾流對飛行安全的影響做出了詳細的分析，然後就目前實行的幾種不同的最小尾流間隔標準進行了比較和分析，提出了相關的幾條準則和一種改進的機型尾流分類標準；在這之後，採用理論分析和統計數據分析相結合的方法，建立了尾流危險遭遇基本模型和尾渦消散模型；並在此基礎上對民用航空不同機型的尾流分類的合理性進行了計算和評估，為最小尾流間隔標準的確定和改進提供了初步的理論依據。
  4. The basic theory of the wake survey measurement is the following.

    尾流測量的基本理論如下。
  5. Large eddy simulation of gas - particle two phase turbulence was carried out, such as simulation of two - dimensional gas - particle two phase wake, two - dimensional gas - particle two phase jet and three - dimensional gas - particle two phase rectangular jet. in these works, les was adopted to simulate gas phase flow and lagrangian approach was utilized to simulate the particles " motion. a series of significant and interesting results were obtained

    文中對二維氣粒兩相平面尾跡流場、二維氣粒兩相平面射流流場以及三維氣粒兩相矩形射流流場中的氣相流場進行了大渦模擬、對顆粒運動擴散採用lagrangian模擬研究后，取得了一系列具有重要的理論意義和實際意義的研究成果。
  6. The main work in this paper includes three parts : the theory research on partially - cavitating and super - cavitating axisymmetric bodies, the numerical computations and experimental investigations on partially - cavitation and super - cavitation on axisymmetric bodies. after finishing the study of theory and experiment on the partially - cavitation and super - cavitation for axisymmetric body, i use the potential flow theory to build the mathematical model on the partially - cavitation and super - cavitation for axisymmetric body. many cavity wake models, such as pressure recovery close model, riabouchinsky model and re - entrant jet model, are studied seriously

    本文在深入研究了回轉體局部空化與超空化理論及實驗結果的基礎上，基於勢流理論，建立了回轉體局部空泡和超空泡流場的基本數學模型，通過對kinnas和fine 、 uhlman以及jiedang和gertkuiper等人基於二維水翼提出的壓力恢復閉合模型、鏡像板模型和回射流模型等空泡尾流模型進行了逐一的研究分析，發現其中的壓力恢復閉合模型較適用於模擬回轉體空泡尾部流場，並選用此空泡尾流模型作為求解回轉體空化流場正問題與逆問題的數學模型的組成部分。
  7. Based on the generalized dynamic inflow theory and classic non - steady aerodynamic loading theory, a real time model is obtained by establishing wake distortion and decay

    在廣義動態入流理論的基礎上，基於經典非定常氣動載荷理論，建立了尾跡畸變和尾跡耗散的實時分析模型。
  8. It is not only an action flick, the director is able to spend quite some time to depict the love affairs of peter parker, making him a more humane and solid characters, which is similar to what brian singer does in

    論娛樂性此片也是一流，從片初到結尾都能做到毫無冷場，高潮一浪接一浪，動作為主又不乏優默場面，編導善於掌握觀眾心理，令人看得投入。
  9. The reasonable mathematical modeling and transom conditions for the transom flows are investigated through analyzing the physical characters of transom flow phenomena of high speed ships

    摘要由排水型高速船方尾流動現象物理特徵的分析，討論方尾流動的適當數學模型與方尾條件的提法。
  10. At first, the generating mechanisms of four kinds of wake features are studied in the thesis. we have simulated the features of ocean surface waves, kelvin wake, narrow v wake, turbulent wake, vortex wake, and internal wake. the kinetic equation of kelvin wake have been analyzed and improved, which can be used to calculate the kelvin wake of a submerged moving body

    論文首先研究了四種常見尾跡特徵的產生機理，模擬得到了海面、 kelvin尾跡、窄v尾跡、湍流和渦流尾跡以及內波尾跡特徵；改進了kelvin尾跡的動力學模型，使之能夠計算運動物體下潛后的kelvin尾跡波高分佈。
  11. To meet the needs for wider surge margin of the turbofan engine, a new model was developed to predict the characteristics of the fan / high pressure compressor and turbine in this thesis. several ways, including, variable inlet guide vanes of the fan, variable guide vanes of the high pressure compressor, the variable inlet area ratio of the mixer and the nozzle areas, were presented to enlarge the surge margin of the turbofan engine. meanwhile, a method of combined variable geometries for optimizing controls of inlet guide vanes of the fan, guide vanes and the first two stators of high pressure compressor, area ratio of mixer and noz zle areas was established

    為了滿足下一代作戰飛機對推進系統的性能和穩定性要求，本文建立了壓縮系統特性和渦輪特性的新模型，並分別採用改變渦扇發動機風扇進口導流葉片、壓氣機導流葉片和前兩級靜葉片、混合室進口處內、外涵面積比和尾噴管面積，研究了其對發動機性能和穩定性的影響，進而得出了渦扇發動機變幾何擴穩的方法，為發動機變幾何擴穩研究打下理論基礎。
  12. Based on the fluid - structure interaction theory, the system can accurately and conveninently predict the behaviors of the aft - part vibration of ships

    該系統基於流固耦合理論，針對艦船尾部結構特徵，可以準確方便地預報出艦船尾部振動特性。
  13. Based on the analysis, we gave an example to study the dynamic contact with friction of the intermittent joint, and got some essential rules : the friction coefficient could n ' t influence the distributing of dynamic stress on the contact surface, and the roading rates affected evidently on the dynamic characteristic on the contact surface. in the last part, this paper made respectively use of the time - history method and the response spectrum method to analyze the dynamic response of the rock slope on baise hydraulic power plant, and got the coincident resultant. simultaneously, the contact theory was applied to study the stability of the intermittent joints

    基於上述的接觸理論和接觸分析結果，本文在最後一部分中分別利用動力時程法和反應譜法對百色水電站尾水渠的巖質邊坡進行動力響應分析，兩者計算方法得出比較一致的結果，同時採用動力摩擦接觸理論重點分析了斷層對于邊坡的穩定影響，認為斷層的存在會使得巖坡的穩定性降低，在地震等動力荷載的作用下對于斷層將發生張開、閉合和錯動現象，尤其是動力荷載和其他荷載如滲流力等的耦合作用將會對斷層產生極為不利的後果，進而影響巖坡的整體動力穩定，應該要引起足夠的重視。
  14. The article discusses the principle, the process circuit, the main equipment and the process practise of the cl2 containing tail gas treatment of nonferrous metallurgy - torrential rinsing and spray washing with sodium hydroxide solution

    摘要論述了用堿湍沖及噴淋洗滌治理有色金屬冶煉過程中含氯尾氣的原理、工藝流程、主要設備及其生產實踐。
  15. For this situation, this paper proposes the crm plan which will satisfy the needs of china pharmaceutical companies. this article first analyzes the challenges and opportunities facing china ' s pharmaceutical industry after china ' s entry into wto, and propose the responsive measures ; then introduces the general theoretic knowledge about crm ; then explain in detail the marketing features and main marketing model of pharmaceutical industry, and the existing problems in the marketing, sale management and customer - service reciept management of pharmaceutical companies as well the needs of crm of them, and last proposes the crm plan and the values realized by the companies while their taking out this plan

    該文章首先分析了我國加入wto以後醫藥企業面臨的挑戰和機遇並提出應對措施；接著介紹了客戶關系管理的一般理論知識；然後文章詳細分析了醫藥行業的營銷特徵、主流營銷模式和醫藥企業在市場營銷、銷售管理和客戶服務前臺管理中存在的問題，導出了醫藥企業對客戶關系管理的需求；最後提出了我國醫藥企業的客戶關系管理解決方案；並且在文章的結尾對企業實施該方案的價值體現進行分析。
  16. Based on the exhaust heat data of the iurbine ( 6160a - 12 ) and the micro gas turbine produced in japan, parameters of test - bed such as deferent thermal flow temperature and pressure are defined by the calculation of design parameter in method of combined theory and experience data

    以柴油機（ 6160a - 12 ）和日本的微型燃氣渦輪機尾氣參數為設計基礎，通過理論和經驗數據相結合的方法進行設計參數計算，確定了模擬實驗臺熱流量、出口溫度及壓力等參數。
  17. According to the sample theory, applied the time terminated test plan, the reliability compliance test plan was brought forward. the reliability compliance test plan was divided into two parts, residual current protection test and operation reliability test. in this paper, the preparation of sample, the test plan, the failure criterion and the program of reliability test were introduced

    本文由抽樣理論，採用定時截尾試驗方案確定了剩餘電流動作保護器的可靠性驗證試驗方案，剩餘電流動作保護器的可靠性驗證試驗由成功率驗證試驗和故障率驗證試驗組成；本文還給出了剩餘電流動作保護器可靠性驗證試驗的試品準備和試驗條件、試驗檢測方法、失效判據，以及可靠性驗證程序。
  18. The principal contributions of this dissertation are : 1. a high fidelity and real - time rotor wake inflow model was built up. based on peters - he finite states wake theory, a new influence coefficient matrix for high speed flight was derived, the modified wake model is better suitable for the flight state with a large wake skew angle

    本模型以peters - he有限狀態尾跡理論為基礎，修正了大尾跡傾斜角時的誘導速度影響系數矩陣，並結合了王氏渦流理論，導出了旋翼誘導速度垂向分量和旋轉分量的表達式，可計算平尾、尾槳和垂尾氣動中心處誘導速度各分量。
  19. Based on the potential flow theory and the general dynamics principle, two kinds of formula for calculating hydrodynamic forces and moments, which are in lagrangian form and bernoulli form, and a lot of corresponding numerical results using bernoulli formula are given

    根據勢流理論計算流場，給出了受力計算的lagrange公式、 bernoulli公式，以及使用bernoulli公式計算的結果。物面網格離散時，著重考慮並分析了尾部平端面和首尾不對稱性這些因素對受力計算精度的影響。
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