軸面流線 的英文怎麼說

中文拼音 [zhóumiànliúxiàn]
軸面流線 英文
meridian streamline
  • : 軸Ⅰ名詞1. (圓柱形的零件) axle; shaft 2. (對稱部分的直線) axis 3. (圓柱形的纏繞器物) roller; spool Ⅱ量詞(用於纏在軸上的線以及裝裱帶軸子的字畫)
  • : 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...
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  • 流線 : filament line; filum aquae; flow line; streamline; streamlining; line of flow; stream filament流...
  1. Since complicated differential and integral operations were involved in the kernel of the integral equation, we simplified the equation and got the nakano equation. as instances, the planar archimedean spiral antenna, the planar equiangular spiral antenna, the monofilar helical antenna, the conical helical antenna with fixed ascending angle and the conical equiangular - spiral antenna were analyzed through the moment method. all of the results matched fairly well with the references and experiment results

    這種方法的積分方程的積分核里含有復雜的微積分運算,為了簡化計算,本文在推廣的海倫積分方程的基礎上,對方程進行了簡化,推導了nakano方程,並以平阿基米德螺旋天,平等角螺旋天向模圓柱螺旋天,具有固定升角的圓錐螺旋天和圓錐等角螺旋天為例,用矩量法求解了天上的電分佈,研究了螺旋天輻射的寬頻帶特性,所得的結果均與參考文獻吻合很好。
  2. In order to solve the technological problem of the dredge of raw material flow on the production line, we ? e carried out as overall theoretical and experimental research on the movement characteristic of the raw material on the surface of sifter in the vibratory machine, the dynamics property of the vibration stimulated by inertial double - axes, the flow property of raw material in these store hoppers, the agglomeration and obstruction mechanism

    針對生產實踐急需,提出了本項研究題目。本文為了解決生產物料疏通的技術難題,對物料在振動篩分機篩上的運動特性、雙慣性激勵式振動篩分機的動力學特性、儲料倉內物料的動特性、物料結拱及堵塞機理等進行了全的理論分析和試驗研究。
  3. At the same time we study, analysis and discuss the action that non - linearity - stickiness - springiness and crazing damage of the pmma sample under creep though making us of the knowledge about the high molecule physics the damage theory of material of rheology of bodies with defects. through the study and theory analysis of single - axes stretching experiment in pmma sample under creep, take the surface crazing damage density of pmma sample as an variable, to look for a commonly rule that the crazing damage of pmma, and to offer a feasible damage model for the sake of study that of pmma ' s remoteness damage

    同時運用高分子物理、含缺陷變性物體的材料破壞理論等知識,對無孔洞pmma試件和有孔洞pmma試件蠕變條件下非性粘彈性行為及其銀紋損傷現象進行了研究、分析與探討,通過對蠕變條件下的pmma試件的單拉伸實驗研究和理論分析,以pmma試件的銀紋損傷密度值為損傷變量,來嘗試尋求pmma銀紋損傷的一般規律,為研究pmma的細觀損傷提供了一種可行的損傷模型。
  4. Three kinds of results are obtained by simulation calculating the two models : the composed vector diagrams of the axial velocity ( v ) and the radial velocity ( vr ) at the different times in the symmetry section ; diagrams of curves of the velocity vector ( v ^ ) and ( vr ) at the different times in the different sections ; diagrams of the secondary flow vectors at the different times in the different sections

    我們對兩種不同直徑的s型血管進行了有限元模擬計算,得到三種結果:在對稱內不同時刻的向速度v _和徑向速度v _ r的合成矢量;在不同截不同時刻的速度分量v _和v _ r的曲圖;在不同截不同時刻的二次的矢量圖。
  5. According to biot - savart law, the general expression of magnetic field distribution generated by circular current in space has been calculated in this paper, which further discusses the magnetic field in the plane, the central axis and the far space

    摘要直接由畢奧薩伐爾定律的計算公式,在更為普遍的情況下,計算出了圓形在全空間的磁場分佈,並進一步討論了其在中心上、平內及遠區的磁感應強度。
  6. 2. the temperature field got from macroscale theory and microscale theory are similar in the microscale theory, two demension heat transfer model is considered, and the temperature difference of the fluid between central axis and nearby the wall is considerably big. 3

    2 、兩種理論模型得到的溫度分佈趨勢基本一致,但微觀尺度理論考慮到體的二維換熱,通道中心處的體的溫度與靠近壁體的溫度有較大的溫差。
  7. In order to make the sensitivity of 2 - demension accelerometer along the two main arbors almost identical, symmetric four - beam structure that embeds a double - sides interdigitated differential capacitive with puckered beam in two directions was used as sensitive component. in addition, the differential capacitive accelerometer fabricated by bulky silicon micromechanical technique has high sensitivity, wide measurement scope, less nonlinear error, and simple converting circuit. then, the structure parameters of the sensitive component were calculated and stimulated, which results in a set of the optimized structure design parameters, main fabrication procedure and several key fabrication technology

    為使二維振動傳感器在兩主方向的靈敏度大致相同,敏感元件採用高度對稱的四梁結構,其中每個向上均採用帶折疊梁的雙側叉指電容結構,採用體硅微機械工藝製作的高深寬比叉指電容式敏感元件,具有高靈敏度、寬量程、非性誤差小、外圍電路簡單等優點;對設計的敏感元件結構參數進行了計算,並利用有限元法進行了模擬分析,根據模擬結果得出了優化參數;在確定敏感結構的基礎上,研究了敏感元件採用體硅微機械加工工藝製作的工藝程和關鍵工藝技術;對敏感晶元內部的c - v介電路進行了原理設計與分析,利用差動測量技術得到由振動引起的微小電容變化量,經c - v介電路進行相位調制處理,然後通過解調輸出與加速度成正比的電壓信號。
  8. Based on the review, the fluid flow and heat transfer in the curved circular and rectangular pipes have been researched by employing perturbation method and numerical simulation with a physical model under the rotational orthogonal curvilinear coordinate in a rotating curvilinear pipe with multi - parameters. we firstly analyzed the fully developed fluid flow and heat transfer, mixed convection heat transfer, the development of flow and heat transfer in the inlet in different cross section ( circular, elliptical, annular and rectangular crossection ). the variations of the secondary flow, axial velocity, distribution of temperature, the friction force on the wall, the ratio of friction factor as well as the nusselt number with different dimensionless parameters had been examined in detailed

    本文在總結和分析了一個世紀以來有關曲管道動和換熱特性的研究成果的基礎上,以旋轉正交曲坐標系統下的多參數旋轉螺旋管道中的對傳熱為物理模型,通過攝動方法和有限體積法,首次對各種截(圓截、橢圓截、環形截、矩形截)旋轉曲管道內充分發展動的動結構和傳熱特性(包括耦合對傳熱特性)以及旋轉曲管道開口段發展動的動結構和換熱特性進行了系統的數值模擬和理論分析,詳細討論了各種無量綱參數對管道內向速度分佈、二次結構、溫度分佈、壁摩擦力、摩擦系數比以及管道nusselt數的影響,獲得了若干創新性成果。
  9. With the different tripping annulus at the inlet, a new method of the distance definition from the wall was used to measure 35 mean velocity profiles on seven sections in the pipe length x / d = 125. 2

    採用新的離壁距離標定方法,在入口處設有改變擾動強度擋環的條件下,利用熱儀在管長x d約為125的范圍內完成了七個不同管上的35個方向速度分佈的測量工作。
  10. Abstract : approximate methods for calculating aerodynamic heating rates on space shuttles are discussed. various methods are given for predicting the heating rate at axisymmetric stagnation points, general three dimensional stagnationpoints and the leading edge stagnation point of wings. numerous laminar and turbulent heating techniques for flat plates and cones are analyzed and compared. a brief review of some methods is presented to predict heating rate for winward centerline and lateral direction off the symmetry plane. the results show that the methods are simpler and can guarantee enought precision for predicting aerodynamic heating environment of space shuttles

    文摘:介紹了國內外預測航天飛機氣動加熱的工程計算方法.給出了對稱、非對稱和機翼前緣等各種外形駐點熱密度的計算,分析和比較了平板、錐體的層和湍密度計算的各種方法,概述了航天飛機迎風中心和離開中心橫向熱密度的計算.計算結果表明,本文方法用在航天飛機氣動熱環境初步設計中比較簡單並且有足夠精度
  11. In the paper, inductance of unit length and capacity of unit length on parallel transmission lines and coaxial transmission lines are studied according to different cullent density distribution firstly

    摘要本文分別在分佈情形和體電分佈情形研究了兩根平行傳輸以及同電纜的單位長度電感和單位長度電容。
  12. The results show that an eddy surrounding the main stream of the multiple jets exists and forms several strong shear flows and enhances the effect of energy dissipation

    研究結果表明:多股多層淹沒射利用在射周圍所形成的強剪切、三維立體漩滾的劇烈混摻來實現消能,消能率較高,且在平上沒有形成明顯的、貫穿的立漩渦。
  13. Hybrid fiber coax outside plant status monitoring : alternative power supply to transponder interface bus for hms transponders

    混合光纖同室外設備狀態監控: hms發射機應答器用發射機應答器介的交動力供應pstib
  14. Firstly, the basic character of the remote filed eddy current is simulated and analyzed in case of two - dimension axial symmetry which approves the existence of remote filed eddy current phenomenon ; the full circumferential defect model is investigated to approve the feasibility of using the rfec techniques to detect the position and depth of defect ; the pit corrosion 、 circumferential and axial crack models are simulated, and the defect character based on voltage plane polar plot and the changes of phase and amplitude are analyzed to supply the standard for defect reconfiguration

    首先,在二維對稱情況下模擬與分析了遠場渦的基本特性,證實了遠場渦現象的存在;對全周向缺陷的遠場渦檢測進行了詳細研究,證實了遠場渦檢測缺陷位置和深度的可行性;對點狀腐蝕、向與周向裂紋三種非對稱缺陷進行三維有限元模擬,利用相位差和幅值變化曲與電壓平極坐標圖對缺陷特徵進行分析,為缺陷形狀重構提供了依據。
  15. In fluent, the flow field of the tube wall, center, top, middle and bottom of the evacuated solar collector tube can be observed, the temperature - time curve and radial temperature gradient can be obtained, the heat loss of different part can be directly captured. 3. all kinds of effect factors of the flow field and temperature field have been analyzed

    通過fluent計算,清楚地觀察到太陽能真空集熱管壁和中心部分,頂部、中部和底部在各種工況下的場分佈均不相同;得出了各種工況下的溫度-時間變化曲,沿方向的溫度梯度;同時還計算了各部分熱損的傳熱量; 3
  16. On the basis of experiments the axial vortex in pump system is analyzed and calculated, the vortex line formulas of planar, cylindrical and axial vortexes are given, and their vortex lines aregraphed

    在試驗研究的基礎上,對泵系統向渦進行了分析計算,給出了平、柱向渦的渦計算公式,並繪出了它們的渦
  17. To meet the need of developing the simulator of the whole flow sheet of the mathematical plant, mathematical model and simulation software of the plant is developed. in the process of modeling, thermotical character and mechanical character of centrifugal compressor are emphased. thermotical character is about section parameters and character curves ; mechanical character is about rotor ' s vibration and axial force

    在建模過程中,重點對離心式壓縮機的熱力特性和機械特性做了較深入的研究,其中熱力特性著重於離心式壓縮機中的氣在各個關鍵截參數和特性曲,機械特性著重於壓縮機轉子系的振動和向力。
  18. 2. calculating and analyzing the scouring and filling up of engineering across section by using two - dimensions water and sand mathematics model which is put forward in this paper. the result provides foundation for engineering designing

    ( 2 )提出利用二維水、泥沙數學模型計算分析了在出現極端水情下,工程過江斷沖淤的情況,為隧道穿越長江的設計提供了依據。
  19. By equalizing the three - dimension current source to the two - dimension current source in spectral domain, the coaxial probe - fed microstrip antenna is analyzed with the full wave method and moment methods is used to numerically analyze the integral equation

    通過在譜域中把空間三維電源等效成二維平源,對同探針饋電的微帶天進行全波分析,運用矩量法對積分方程進行數值分析。
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