氣動力面積 的英文怎麼說

中文拼音 [dòngmiàn]
氣動力面積 英文
aerodynamic area
  • : Ⅰ名詞1 (氣體) gas 2 (空氣) air 3 (氣息) breath 4 (自然界冷熱陰晴等現象) weather 5 (氣味...
  • : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
  • : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
  • : Ⅰ動詞(積累) amass; store up; accumulate Ⅱ形容詞(長時間積累下來的) long standing; long pending...
  • 面積 : [數學] area
  1. Some factors affecting the alluvion and erosion of the yellow river delta are given and analyzed, including human activities, global warming and sea level rise, deep structure, deposits in the delta, local climate, some ocean factors such as current, wave, tide

    此外,本文還分析了地質構造、沉相和沉物、象條件、海洋、海平升高、人類活等因素對黃河三角洲的沖淤演變的影響。
  2. The aerodynamic characteristics of a projectile with wrap around fins are studied systematically in this paper, as follows : 1. the lift coefficients 、 drag force coefficients 、 pitch moment coefficients 、 pitch damping moment derivatives and roll damping moment derivatives are obtained from engineering calculation through looking wrap around fins as flat fins of the same projection aera

    本文對某卷弧尾翼彈特性進行了系統研究,主要內容與結論為: 1 .將卷弧翼按照相同投影的平板翼進行工程估算,得到升系數、阻系數、俯仰矩系數、俯仰阻尼導數、滾轉阻尼導數曲線。
  3. Complete air piston pump contains pneumatic motor and piston pump, the ratio of piston area of pneumatic motor and plunger ' s sectional area of piston pump is transforming times of pump pressure ; the higher times, the more pressure can deliver higher viscosity fluid, and achieve the delivery aim

    完整的柱塞泵包含有馬達與柱塞泵兩部分,馬達中的活塞與柱塞泵活塞的截比值,就是泵壓轉換的倍數;愈高的倍數就能以愈大的壓輸送愈高黏度的流體,達到輸送的目標。
  4. Air piston pump adopts the theory that " pressure " applying force on various areas and can produce various " acting force ", the pump takes the origin that the compressed air is compressed energy, and transforms the pressure of compressed air into more fluid pressure, pressing fluid move in order to achieve the aim of high viscosity and ultra - viscosity fluid

    柱塞泵是利用「壓」在不同的上施,產生不同「作用壓」的原理,以壓縮空為壓能量的來源,將壓縮空的壓轉換成更大的流體壓,壓迫流體移,進而達到輸送高黏度及超高黏度流體的目的。
  5. Many researches have been done with the simulation model. it was found that some structure parameters such as the diameter of the driving piston, the diameter of the buffer piston, the stiffness of the valve spring, the compress ratio of the buffer piston, and the flux area of the solenoid valve etc. have great effect on the performance of the haecvvs. for certain performance demand of the variable vale system, there is a most suitable combination for the structure parameters

    通過對電控可變門系統的主要結構參數,如活塞直徑、緩沖活塞直徑、門彈簧剛度、緩沖活塞實際壓縮比、電磁閥通流等參中壓共軌電控柴油機可變門系統的研究數對電控可變門系統啟、閉特性的影響規律的研究發現,活塞直徑、門彈簧剛度、電磁閥通流對電控可變門系統啟、閉性能起著決定性的作用,對於一定的門啟閉規律要求,這些結構參數存在一組最佳值。
  6. The surface finite element solver can fit every kind of body. some models with noncircular cross are calculated. and the results are compared with the experiment values

    利用元法能夠適用於計算各種截彈身參數的特點,對截相等的幾種非圓截彈身模型的進行了計算,並將結果與實驗值進行了比較。
  7. The numerical algorithm of solving the adjoint equations for different design cases have been developed by using finite volume methodology which is usually used to solve the flow governed equation. it includes the some important aspects, such as flux formulation, wall and far - field boundary treatment methodology, dissipative term formulation, etc. after the solution of the adjoint equations is obtained, the derivatives of the cost function with respect to all the design variables can be evaluated with the same operation. this can yields a significant saving over the other gradient - based techniques when there are many design variables

    ( 3 )進行了應用控制理論和三維歐拉方程的機翼反設計研究,以及有升約束情形下機翼跨音速減阻問題研究,分別推導了相應的共軛方程及邊界條件數學表達形式,研究與發展了三維共軛方程的有限體數值求解方法,及相應梯度公式的數值求解方法,通過對計算網格生成、流場計算、共軛方程數值求解、梯度求解和優化演算法等多方的有效結合,成功發展了三維機翼的反設計和跨音速減阻優化設計程序,成功地進行了多個設計算例研究。
  8. The dynamic behavior of bubbles in the turbulent liquid is analyzed theoretically, the mechanism of bubble deformation and breakage is explored on the basis of kolmogoroff ' s isotropic turbulence hypothesis, and the mathematical model for predicting gas - liquid interfacial area is proposed

    同時,還從理論上分析了湍流液體中泡變形與破碎的機理,提出了預測液相界的多相湍流學模型。
  9. The investigation in the field was combined with research indoors. by classifying tectonic sequence, confirming corresponding prototype basin, analyzing paleo - tectonic stress fields in different periods, plotting correlative tectonic map based on 297 explore wells, and analyzing the traits of the remaining depressions producing hydrocarbon and their migration rules in the ordovician, the author studied the basement of the basin ; the fault system of the basin ; the tectonic - sedimentary evolution of the basin and its circumference areas ; the prototype basin and corresponding dynamics background ; the paleo - tectonic patte rn and its evolution in the layers of producing gas in different periods of ordovician ; the superposition relationship among the different period basins formed by different stress fields ; the reformation of the basin and the formation, redistribution and final emplacement of the gas pools

    採用野外地質調查與室內綜合研究相結合,通過構造層序的劃分及其相應盆地原型的確定、不同期次古構造應場的分析、以297口探井數據為基礎的相關構造圖件的編制、奧陶系殘餘生烴坳陷及其遷移規律研究等的綜合分析,開展了盆地基底以及盆地斷裂系統、盆地及鄰區構造與沉演化、盆地原型及其形成的學背景、奧陶系產層不同時期的古構造格局及其演化、不同期次構造應場形成的不同世代盆地之間的疊置關系以及盆地改造與天然藏的形成、重新分配和最終就位諸方的研究。
  10. The structural elements of controlling reservoir forming in kenxi area are studied and estimated systematically, the vertical and plane evolution processes of sedimentary in kenxi area are set forth, time and space spread and its controlling factors of the hydrocarbon source rock and reservoir are analyzed, two types of hydrocarbon source rock ( es3, es4 ), two types of heavy oil, two periods of hydrocarbon generation, two periods of hydrocarbon drain, two stages of reservoir forming and five dynamic systems of reservoir forming are definite in kenxi area

    對墾西地區油成藏構造要素進行了綜合地研究評價,闡述了其沉縱向及平演化過程,分析了生油層、儲集層時空展布及其控制困素,識別出本區有沙四、沙三兩套油源層,兩種類型的稠油,有兩個生烴期、排烴期、成藏期,五個成藏系統。
  11. The sequence of two patterns presence is changed alternately, that is, one pattern will appear at the second pulse of total pattern in this half cycle if it appears at first pulse in last half cycle. the stability of square pattern was studied by considering the interaction among the wall charges. the discharge moments of individual filament alternate from long one to short in the square pattern, which can been explained by using the breakdown and quench model through considering the wall discharge accumulated on the dielectric layers

    實驗研究了正方網格斑圖與混合體的比例及外加電壓的關系,給出了班圖類型隨上述條件變化的相圖;實驗採用光學方法對正方網格斑圖進行了時空學測量,發現正方網格斑圖是由兩套正方網格斑圖相互嵌套而成,其中一套的微放電絲位於另一套正方形單元的中心,這兩套微放電絲交替進行放電;考慮到壁電荷之間的相互作用,研究了正方網格斑圖的穩定性;實驗發現正方網格斑圖的微放電絲放電時間間隔是長短交替變化的,考慮到電介質表累的壁電荷的作用,使用擊穿?熄滅方程很好的解釋了該現象。
  12. The variation of coarseness and fineness of the component particles in baijiaziu profile and mafangtan profile is caused by river impetus of weihe river, including runoff volume and velocity of flow, which is closely related with climatic factors in guanzhong basin, such as precipitation, temperature and rainfall

    白家嘴與馬坊灘河流沉物剖粒度變化與渭河水變化直接相關,而渭河水條件又與渭河流域區域候變化有關。因此,粒度在剖上的變化實質上是候波的結果,利用其變化可重建河流沉物形成以來的水文、候環境的演化歷史。
  13. Ingyang pet product company, a specialized manufacturer of pet products since 1989, from starting with only rawhide dog chews, through the past years, the company grows quickly and now it has become the largest manufacturer in china, which includes 35, 000 square meters and 1, 200 staffs, and was able to produce or offer dog chews rawhide chews, porkhide chews, pig ear and cotton chews, choke chains, nylon leashes muzzles, automatic leashes, pet toys, pet wears, bird cages, vinyl toys, etc, the monthly capability was over 100 containers.

    以生產唯一的生牛皮狗的咀嚼食物開始.通過了過去幾年的努,該公司迅速發展成為中國最大的製造商,擁有35000平方米的佔地和1200名職工。能生產或提供狗咀嚼食物生牛皮豬肉,豬耳朵及棉花咀碎片阻鐐銬,尼拴狗頸帶和物口套自狗頸皮帶寵物玩具寵物衣服鳥籠乙烯基玩具等每月生產量超過100集裝箱。
  14. The properties of cn thin films such as their morphology, component, crystal structure and the bonding structure and the relation between those properties and the gas - phase reaction parameters were discussed, showing that the deposition of p - c3n4 thin film is the compete result of various reaction processes in the dynamics balance conditions ; the process of cn films depo sition is diagnosed in situ through the optical emission spectra technique, the effects of experimental parameters on the concentration of the precursors and the gas - phase reactions in the plasma have been obtained ; the main reaction precursors for film deposition identified ; the relation between the characteristics of cn thin films and the reaction process in the plasma is analyzed. the cn thin films deposition under different substrate temperatures in high pressure pe - pld shows that the si atom of the substrate has participated the cn films growth process, based on this the growth mode of cn thin films on the si substrate is proposed. the further experiment of cn thin films deposition on si substrate scratched by diamond as well as covered with fe catalyzer has been attempted, which indicates that changing the dynamics conditions of the surface reaction can alter the growth characteristic of the cn thin films and can enhance obviously the films growth rate

    採用pld技術進行了碳氮化合物薄膜沉,得到了含氮量為21at的cn薄膜;研究了襯底溫度和反應體壓強對薄膜結構特性的影響,給出了cn薄膜中n含量較小、 sp ~ 3鍵合結構成分較少和薄膜中僅含有局域cn晶體的原因;引入脈沖輝光放電等離子體增強pld的相反應,給出了提高薄膜晶態sp ~ 3鍵合結構成分和薄膜的含n量可行性途徑;應用pe - cvd技術以ch _ 4 + n _ 2為反應體並引入輔助體h _ 2 ,得到了含n量為56at的晶態cn薄膜;探討了cn薄膜形貌、成分、晶體結構、價鍵狀態等特性及其與體壓強和放電電流的關系,證明了- c _ 3n _ 4薄膜沉為滿足學平衡條件的各種反應過程的競爭結果;採用光學發射譜技術對cn薄膜生長過程進行了實時診斷,得到了實驗參量對等離子體中活性粒子相對濃度和相反應過程的影響規律,給出了cn薄膜沉的主要反應前驅物,揭示了cn薄膜特性和等離子體內反應過程之間的聯系;採用高壓pe - pld技術研究了不同襯底溫度條件下cn化合物薄膜的結構特性,揭示了si原子對薄膜生長過程的影響,給出了si基表碳氮薄膜的生長模式;在金剛石研磨和催化劑fe處理的si襯底上進行cn薄膜沉,證明了通過控制材料表學條件可以改變碳氮薄膜結構特性,並可顯著提高晶態碳氮材料的生長速率。
  15. With the tectonic uplift of the source area and the climate turning dry, the coal forming period was over, the fluvial system and fluvial - delta system became to play a major role. based on the study of former researchers and the theory of deep basin gas reservoir forming, the deep basin gas trap in the ordos basin is analyzed and is supposed to form in the ramp of the basin. it is supposed that the hydrocarbon of the deep basin gas trap is mainly composed of coal, carbonate and carbonaceous shale and with the " upper water seal " in the north of the study area the g

    根據深盆成藏理論和前人的研究成果,分析了深盆藏的分佈類型,認為鄂爾多斯盆地深盆藏屬于盆地斜坡成藏類型;認為深盆的源巖以煤、炭質泥巖、暗色泥巖和碳酸鹽巖為主;北部水倒置、東部露頭區有天然逸出;藏具有多重壓系統;成藏機理主要是態的運移與聚集,穩定的構造背景有利於藏的大保存。
  16. This article introduces the design and implement of flight simulator based on dsp which contains five parts. the first part establishs the math model of flight simulator which contains the model of aerodynamics and flight mechanics, the model of standard atmosphere and wind model ; the second part introdces primarily the arithmetic of numeric integral which is very important to dyanmic system simulant. the third part introduces the design of hard interface circuit and program. the fourth part introduces the data flow graph of the flight simulator software and gunge - kutta integral arithmetic. the finall part introduces the design of serial port communication software, it contains communication protocol, the process of upper machine and lower machine communication and the programing of serial port communication by vc + +

    本文介紹了基於dsp的飛行器模擬器設計與實現,主要分為五個部分,第一部分建立了飛行模擬的數學模型,包括飛行器空學和飛行學的數學模型、標準大模型和風模型;第二部分主要介紹了數值分演算法,它在態系統模擬中是很重要的;第三部分為硬體介設計與編程;第四部分介紹了模擬軟體的數據處理流程和runge - kutta分演算法;最後一部分為串口通信軟體設計,介紹了通信協議、上下位機處理流程和vc + +串口通信編程。
  17. Using the microwave selective heating property for materials, by setup equivalent equation, and first time inducing the electromagnetic field perturbation theory to the design of heating materials for substrate in mpcvd, three temperature distribution modes were established, including temperature distribution comprehensive mode of inhomogeneous plasma, temperature distribution composite mode of composite substrate materials, temperature distribution perturbation mode of composite materials, which ii provided an whole new technology route to the design of substrate heating system in mpcvd and guided the preparation of heating materials for substrate. and then the heating materials for substrate were designed and optimized to obtain large area homogeneous temperature distribution even larger than substrate holder ' s diameter. as an important part, this thesis researched the nucleation and growth of diamond films in mpcvd, systematically researched the effects of substrate pretreatment, methane concentration, deposition pressure and substrate temperature etc experimental technologic parameters on diamond films " quality on ( 100 ) single crystal silicon substrate in the process of mpcvd, characterized the films qualities in laser raman spectra ( raman ), x - ray diffraction ( xrd ), scanning electron microscopy ( sem ), infrared transmission spectra ( ir ), atomic force microscopy ( afm ), determined the optimum parameters for mpcvd high quality diamond in the mpcvd - 4 mode system

    該系統可通過沉參數的精確控制,以控制沉過程,減少金剛石膜生長過程中的缺陷,並採用光纖光譜儀檢測分析等離子體的可見光光譜以監測微波等離體化學相沉過程;利用微波對材料的選擇加熱特性,通過構造等效方程,並首次將電磁場攝理論引入到mpcvd的基片加熱材料的設計中,建立了非均勻等離子體溫度場綜合模型、復合介質基片材料的復合溫度場模型及復合介質材料溫度場攝模型,為mpcvd的基片加熱系統設計提供了一條全新的技術路線以指導基片加熱材料的制備,並對基片加熱材料進行了設計和優選,以獲取大均勻的溫度場區,甚至獲得大於基片臺尺寸的均勻溫度區;作為研究重點之一,開展了微波等離體化學相沉金剛石的成核與生長研究,系統地研究了在( 100 )單晶硅基片上mpcvd沉金剛石膜的實驗過程中,基片預處理、甲烷濃度、沉壓、基體溫度等不同實驗工藝參數對金剛石薄膜質量的影響,分別用raman光譜、 x射線衍射( xrd ) 、掃描電鏡( sem ) 、紅外透射光譜( ir ) 、原子顯微鏡( afm )對薄膜進行了表徵,確立了該系統上mpcvd金剛石膜的最佳的實驗工藝參數。
  18. In this paper i was in virtue of the fluent software, set up the geometrical model of jin ’ ao mansion and adjacent buildings, used non - equilibrium wall functions to deal with the problem which come from the near wall, used realizable k - turbulent model to simulate the steady flow around 3d high - rise buildings, we can get the distribution of mean wind pressure coefficient of the surface of jin ’ ao mansion and five aerodynamics components. they were compared with the data from the wind tunnel test, we found out the distance between the result of the wind tunnel test and numerical simulation in the acceptable range

    本文以fluent軟體為平臺,建立金奧大廈及其周邊建築的計算幾何模型,近壁區採用非平衡壁函數法處理,運用基於雷諾時均的realizablek -湍流模型進行高層建築三維定常風場數值模擬,獲得金奧大廈表時均風壓系數分佈及基底五分量,並和風洞測壓試驗的結果及風壓系數分計算的基底五分量相比較,發現兩者之間的差異在可接受的范圍之內。
  19. The disposal of the valves and intake manifold structure not only affect fresh air charge but airflow in the cylinder, which immediately affect combustion efficiency and the performance of dynamic, economic and emission. the structure of the air distributing institution has influence on charging efficiency and the noise of engine. the combustion chamber affects compression scale which has great influence on dynamical performance ; f / v which affects the exhaust of hc ; squash area and clearance which have great influence on the intensity of squash

    缸蓋的門排列方式與道結構形式影響進充量和流在缸內的運,從而影響了燃燒效率,對整機的性、經濟性以及排放都有直接的影響;配機構的形式影響充系數和整機噪聲等;缸蓋燃燒室決定了影響整機性能的壓縮比,影響hc排放的f / v和對擠流起決定性作用的擠以及擠間隙,所以燃燒室對整機性、經濟性、排放等都有重要的影響;缸蓋是整機熱負荷與熱應最大的部件之一,熱負荷過高將不利於發機壽命以及可靠性的提高。
  20. Single - layer model is convenient to apply but the unclear relationship between radiative and aerodynamic temperatures is still a bottleneck in this field. a new method was developed to derive reliable surface heat fluxes from radiative temperature viewed from arbitrary zenith angle. aerodynamic and radiative temperatures are connected through a so - called optimum component fraction ( ocf ) parameter - the fraction of vegetation in the field of view when the two temperatures are equivalent in oblique viewing

    該方法利用表熱輻射方向性和顯熱通量都是源於土壤和植被溫度的貢獻這一共同點,發現在一定傾斜角度的觀測下,視場中植被與土壤的比例可以較好地反映植被和土壤與大進行湍流熱交換的貢獻率,所以稱該方法為最佳組分比法,用最佳組分比可以將任意角度下觀測到的輻射溫度訂正為空學溫度,經過地和遙感數據驗證表明,用該方法計算的通量精度高於普通的單層模型。
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