渦線分佈 的英文怎麼說

中文拼音 [guōxiànfēn]
渦線分佈 英文
vortex line distribution
  • : 渦名詞1. (漩渦) eddy; whirlpool; vortex 2. (酒窩) dimple
  • : 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...
  • : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
  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.根據灘槽交互區垂流速的變化特點,提出了附加尾流函數的對數流速公式.在簡化水流運動方程和泥沙擴散方程的基礎上,對灘槽交互區內垂平均流速及含沙量沿橫向進行了理論析,提出了反映灘槽水流動量交換強度的橫向量粘性系數及橫向擴散系數的表達式,得到了漫灘水流垂平均流速及含沙量沿橫向的解析解,並與實測資料吻合較好
  2. At some situation, this secondary flow causes the upper plate to have a suck - down force phenomenon

    而橫向流會造成上沖噴泉流、流、壁流與停滯等流場結構的改變,進而影響上平板之壓力
  3. Through analysis of potential vorticity in isobaric surface field, in low - troposphere a positive potential vorticity disturbance exist and form incline disturbance column northward before rainstorm generation, at the same time have also reflected positive potential vorticity disturbance for severe convection weather trigger role in lower - troposphere ; soon positive potential vorticity disturbance in high - troposphere downward, form one vertical disturbance column, now corresponding precipitation develop stage ; in the prosperous stage of rainstorm that maintains isolines of horizontal distribution and still have straight positive potential vorticity disturbance in 600 - 700 hpa isobaric surface field ; when near ground arises negative potential vorticity disturbance, precipitation also weaken

    通過對等壓面的位析,發現了在暴雨發生前,在對流層低層有正位擾動存在並向北形成傾斜的擾動柱,同時也反映了對流層低層正位擾動對強對流天氣的觸發作用;隨后高層正位向下擾動,形成一個垂直擾動柱,這時對應降水的發展階段:在暴雨的鼎盛階段, 600 700hpa上空維持水平的等值,在其上還有正的位擾動;當近地面出現負的位擾動時,降水隨之也減弱。
  4. For both newtonian flow and non - newtonian flow, the vortices are generated when the waviness of the bottom profile is beyond a critical number. by increasing the waviness, a second vortex can be generated. with the increasing of reynolds number, the symmetry of the streamlines at re = 0 is destroyed and the vortices are sloped and become larger

    當波形板的波動度超出臨界值,波形板壁面上的流動出現流離,流動中有生成;增大波動度,流動中出現第二個; re = 0 ,流在流場中對稱;雷諾數增大,流駐點在水平方向出現位置偏移,的范圍增大;對于非牛頓流體,隨著剪切變稀指數的減小,的作用范圍減小。
  5. Moreover, a method for iterating thermal and magnetic analysis is put forward. in chapter 5, the distributed characteristics of eddy and temperature fields in induction heating process are simulation by fem respectively, including the distributions of eddy and temperature fields during the whole induction heating process, the influence of frequency and magnetic disperse, and the prediction of hardened depth

    第五章:用ansys軟體對感應加熱過程中工件內流場、溫度場的一些基本問題進行模擬及析,主要包括:加熱過程中工件流功率密度及溫度規律;頻率與磁力逸散對加熱效果的影響;同時對感應淬火淬硬層深度進行了模擬預測。
  6. The integral method is adopted caculate and analyze to amf three - dimension distruction which is the structure of coil type four - pole and the structure of coil type double - pole and study the size of two kind of electrode structure axial magnetic flux density distribution and its fielduniformity. the finite - element method is used simulate that eddy current has effect on amf when contact tray of douple - pole amf structure is slotted or no

    本文採用積方法對本文設計的圈式兩極縱向磁場觸頭結構和圈式四級縱向磁場觸頭結構的縱向磁場三維進行了計算析。研究了電弧燃燒期間兩種觸頭結構縱向磁場強度的大小、均勻性,利用有限元法模擬圈式兩極縱向磁場觸頭結構的觸頭盤開槽和不開槽時流對縱向磁場的影響。
  7. This program can be used to calculate continuous enclosure type isolated - phase bus of different volt and current conveniently. secondly, it calculates a series of rational continuous enclosure type isolated - phase bus for the external diameter of the enclosure is 900mm, analyzes and calculates the magnetic fields of the continuous enclosure type isolated - phase bus by using limited unit method. from this it acquires the distributions of magnetic fields and magnetic density as well as the eddy current

    其次,以全連離相封閉母外殼外徑為900mm的情況進行了理論計算,計算了多種預選方案,採用有限元方法對全連離相封閉母場域的電磁場進行了數值計算,得出了設計母的電磁場及電密以及流等情況,並對所得結果進行了析。
  8. The surface panel method has been applied to predict the hydrodynamic performance of highly skewed propeller. the surface of propeller and its trailing vortex are discreted by a number of small hyperboloidal quadrilateral panels with constant source and doublet distribution. for highly skewed propeller, the conventional method generating grid oriented along constant radii will result in a high aspect ratio and a high skewness and a twist panel near the propeller tip on blade surface, which result easily in incorrect calculation results of velovity on blade surface, even in iteration divergence and calculation failure. a “ non - conventional grid ” is developed to acoid these problems. this grid can effectively solve the problem of the calculation and convergence for highly skewed propeller. the non - linear kutta condition of equal pressure on upper and lower at the trailing edge is executed by the iterative procedure. by sample calculating, the obtained results are satisfied the experimental data

    採用面元法預報大側斜螺旋槳水動力性能,螺旋槳表面及尾面離散為四邊形雙曲面元,每個面元上布置等強度源匯和偶極子.對于大側斜螺旋槳而言,槳葉表面採用常規的等半徑網格劃方法在近葉梢處將導致大展弦比、大側斜和扭曲面元,這容易使槳葉表面速度的計算結果不正確,甚至會導致迭代過程發散及計算失敗.文中建立了一種「非常規網格」劃方法,能有效地解決大側斜螺旋槳的計算和收斂問題.槳葉隨邊處通過迭代實現非性等壓庫塔條件
  9. The mean profiles of reynolds stresses bear prodigious specialty, i. e. the lateral fluctuations at the centerline are inhibjied strongly and the longitudinal ones have the tendency of growing continuously, which is induced by the special symmetrical vorticity field

    雷諾應力有很大的特殊性,即軸的橫向應力被強烈地抑制,而縱向應力卻有不斷變大的趨勢,這是由於特殊的對稱量場結構引起的。
  10. In this paper, the electromagnetic problems of the passive feedback coils that restrain the vertical displacement of plasma in fusion device is discussed and the induced currents on the passive feedback coils, the eddy currents magnetic field and the electrical parameters of coils are also analyzed

    本文研究了聚變裝置中用於抑制等離子體垂直位移的被動反饋圈電磁問題,析了被動反饋圈感應電流流磁場及圈電氣參數等問題。
  11. The results are compared with the cases in a single - layer fluid, showing that the density stratification can have a relative large effect on the drag and lift coefficients as well as the vortex shedding

    計算受迫振蕩圓柱體的升力系數、阻力系數隨時間的演化曲和圓柱體的尾,以及圓柱體的受迫振蕩激發兩層流體內界面的擾動,並與均勻流體的情況進行了比較析。
  12. A " saddle " shape appears in the curve of relationship between smd ( sauter mean diameter ) and charging voltage, the droplets " size distribution fluctuates with the change of charging voltage. the influence of electric field on flow field is apparent. the distribution of velocity and turbulent energy, structure and size of vortex appear different changes with the increase of voltage of charging

    索太爾粒徑隨電壓的變化曲中出現「馬鞍」現象,粒徑的情況隨電壓的升高出現波動性變化;電場對流場的作用明顯,速度與湍能的的結構等流場特性隨電場的改變均有不同規律的變化。
  13. Due to the existence of the eddy and the abrupt bend of the stream line, the pressure on the four faces has the distribution as follow : the lowest pressure appears at several centimeters after the angle point along the top boundary, the highest pressure appears near the center line of the vertical shaft on the bottom boundary, near the angle point, the pressure on the inner boundary decreases with the decreasing height, the pressure on the external boundary decreases slightly in the right - angle region, and increases obviously near the corner

    迴流漩的存在,以及直彎處流的急劇彎曲,導致壁面壓力在上表面距彎點一定距離后出現壓力最小值,下表面上,在豎井中心略偏下游的位置出現壓力最大值,豎井內表面接近彎點處出現壓力沿程降低的現象,豎井外表面壓力在進入直彎后先是沿程略有降低,在直彎角落處又明顯升高。
  14. On the basis of producing the mathematical model of calculating the induced currents on the passive feedback coils, the distribution and variation of the induced currents and the eddy currents magnetic field are given by numerical calculation. these conclusions are necessary to study the vertical unstability of plasma and design the coils

    在建立求解被動導電板感應電流數學模型的基礎上,通過數值計算,給出了感應電流的和變化情況,同時對流磁場的和變化也給出詳細的計算結果,這些結論對研究等離子體垂直不穩定性和圈的設計是必需的。
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