速度等值線 的英文怎麼說

中文拼音 [děngzhíxiàn]
速度等值線 英文
contoured velocity
  • : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • : Ⅰ量詞1 (等級) class; grade; rank 2 (種; 類) kind; sort; type Ⅱ形容詞(程度或數量上相同) equa...
  • : 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...
  • 速度 : 1. [物理學] velocity; speed; blast; bat 2. [音樂] tempo3. (快慢的程度) speed; rate; pace; tempo
  • 等值 : equivalent; equivalence
  1. At first, in the process of experiments, it were measured that dry plate pressures drop and point pressures in the flow fields around the single fixed - valve and double fixed - valves under different velocities by using of pitot tube. after that point pressure was transformed to point velocity, two dimensions flow plane of flow fields around fixed - valve were plotted to observe the difference between of the fixed - valve tray with fold edges and the common rectangular fixed - valve tray on the distributions of flow fields and pressures, to provide comparisons and refer - rence for cfd simulation

    在實驗中,利用測儀器對在不同下的單閥和雙閥固定閥周圍的流場進行了點壓力測量,然後把點壓力轉化為點后繪出固定閥周圍流場的二維流圖,同時測定了塔板的干板壓降,來考察新型固定閥帶折邊后對流場分佈和壓降的影響,為隨后的數模擬提供對比和依據。
  2. The hybrid algorithm raises the convergence rate of the conjugate gradient method and solves the problem for which the convergence rate of the steepest descent method get slower when the isopleth of goal function is oblong

    這種混合優化演算法結合了共扼梯法和最下降法產生搜索方向,既提高了共扼梯演算法的收斂,又解決了目標函數的是扁長橢球時,最下降法下降緩慢的問題,具有收斂快、收斂范圍大、適應面廣特點。
  3. In the post - process, uses the microsoft medias technical to design cartoon display mode, it raises cartoon speed and saves disc space, it can produce majority prevailing medias form. in interpolation, introduced dsi method, which improve the interpolation method of isoline, raise algorithm speed and efficiency, satisfy the real - time quality request. on the basis of scanning line algorithm, use opengl smooth interpolate method to improve the implementati

    在後處理過程中,引進了dsi插方法,改進了以往,提高了演算法和效率,滿足了實時性要求,在掃描演算法的基礎上,引進了opm沁l插方法,改進了雲圖實現方法,提高了圖形顯示精,在動畫格式上,我們可以根掘自己需要實現不同精的不同壓縮格式動畫文件,提高了后處理顯示應用場合,改變了以往動畫格式單一的形式。
  4. In this thesis, aragonite whisker was synthesized by introducing co2 into ca ( oh ) 2 suspension mixed with mgcl2. the hyphenated technique of microscope - microcomputer was used to examine the morphology and microstructure of the products. the effects of reaction temperature, concentration of mgcl2, ph value of the initial suspension, flow velocity of co2, and stirring strength on the formation of the polymorphs of calcium carbonate were examined

    本文利用改進的碳化法制備了文石相碳酸鈣晶須,採用高倍顯微鏡一計算機聯用技術、掃描電鏡和x射衍射儀進行產品形貌觀察和晶型分析,討論了溫、 mgcl _ 2濃、初始ph、 co _ 2的流、攪拌因素對制備文石相碳酸鈣晶須的影響。
  5. In different in terne die travel, the metal flow characterize in warm extrusion forming processes and the affection for the flow of metal stage which made by the difference between the blank bottom altitude and the axial direction limiting size in warm extrusion forming technique have been analysed we have gotten the equivalent strain field and the velocity field and other field variable that the blank in different in terne die travel and the die travel - load curve. at the same time, we have analyzed the contributing factor for the oil pump stator forming process optimized and achieve thereasonable die parameter for the war m extrusion forming finally, the optimized technics parameters were used into pilot production, then the qualified oil pump stator forging were produced, the analog results were compared with those of pilot production

    論文具體分析研究了不同成形工藝過程中金屬流動的特點,並對不同凸模行程下溫擠成形過程中的金屬流動特點、坯料連皮厚(底部高)與溫擠壓成形工藝中的軸向界限尺寸的差對金屬變形階段的影響進行了分析,獲得了坯料在不同凸模行程下的效應變場、場變量及凸模行程-載荷曲,同時對油泵定子成形過程的影響因素進行了分析,優化並獲得了合理的溫擠成形工藝及模具參數。最後,利用模擬優化獲得的各項工藝參數進行生產實驗,得到實際生產出的合格油泵定子件,並將模擬結果與生產實驗結果進行比較。
  6. Cfx software is used to simulate flow fields of water cushion pool. contour stream line, vortex and kinetic energy in water cushion pool are found and offered as visualization form. the results of numerical simulation and piv are analyzed and compared in this paper

    使用數軟體( cfx )對此水工實驗模型的淹沒射流流場進行了數模擬,得到水墊塘內的場、流函數圖,將這些計算結果以可視化結果的形式給出。
  7. It is showed that numerical calculation could give the same position of separation line with the cold gas simulation. however, numerical simulation result is of a little deferent from cold gas simulation in some details, such as recirculation velocity and turbulent intensity. the main problem of numerical simulation is that the turbulent model is not perfect, and the computational grid is not precise enough

    利用實驗結果對數模擬的準確性作了檢驗和評價,結果表明數模擬能給出與實驗結果一致的分離位置,但在某些流動細節上還有差別,如迴流大小和湍流,數模擬中存在的主要問題是湍流模型不夠完善和網格生成不夠精細。
  8. When catchment area, average channel gradient and catchment shape factor of designed culvert or bridge are known, a user can be convenient to get local parameters c, e and b from standard contour charts and easy to calculate flood flow just by a calculator. design period of flood flow is enormously shortened as well as a high precision. estimated flood flow through culvert or small bridge by new calculation model is generally less than by traditional methods, so that much cost is cut down a s reducing the span of culvert or small bridge

    以75000km ~ 2的川中丘陵地區為試點研究區,繪制了該地區新模型的參數圖,率定了不同設計頻率的改正系數,使設計者只需在地形圖上獲取集水面積,河道平均坡降和流域形狀系數,在參數圖上查得橋涵所在地的相應參數,使用計算器即可迅計算出設計流量,大大縮短了設計周期,且精較高,設計的洪水流量一般低於傳統方法,從而可減小橋涵跨徑,節省投資。
  9. The result can be long distance reception of radio waves that would normally have been far beyond the radio horizon. the equations for ray tracing were given, simulating and tracing electro - magnetic wave duct propagation using spherical layered atmosphere mode, this method is very useful for analysis of radar echo distribution and confirm relation of stratification of atmosphere and ray duct propagation in the process of studying radar second product, introduce a new 3 - d interpolation method. outcome of this method can suit all kinds of density product

    在雷達二次產品處理演算法中,討論了一種新的三維插,比以往在顯示每一個雷達二次產品時,都作一次插相比,這種方法既節省了總的機時,也提高了每個產品的顯示,在討論這種方法后,用幾個產品的實例,說明了這種方法是可行的,並且還討論了的生成原理,在「雷達二次產品處理平臺」下,開發了visualc + +實現程序。
  10. Considering the similitude law for shaking table test, we study the test results and obtain some conclusions which are a ) generally, the silty soil in test box liquefies and the liquefied time has relation with the amplitude of acceleration, b ) when the intensity is on and above eight degree, the silty soil deposit will be liquefied dramatically, c ) the relationship of the pore water pressure is relevant to the cycle loading which represents when the cycle loading ranges from little to great, the relationship is represent as a concave curve, or else as a protruding curve and tends to stability. ( 3 ) based on the triaxial compression test and the resonant column test, some studies are made such as a ) the duncan - chang parameters of constitutive model, b ) the dynamic shear modulus ratio and c ) the damping ratio of the site soil deposits. in order to deal with the test data, a computer program is compiled

    ( 2 )利用小型振動臺進行了k _ 0固結狀態下粉土的振動液化模擬研究,通過分析正弦荷載作用下的試驗資料,驗證了粉土的孔隙水壓力增長模式的合理性;從微分方程推導了基於土體振動臺模型試驗的相似律,並從模型實體、孔壓時程曲和相似律方面做出了分析,得出了如下結論:在小型振動臺試驗中,模型箱中的粉土都發生了液化,液化的時刻和輸入加有關,而對頻率的變化不太敏感;粉土在相當於8 9地震烈的加作用下可能產生嚴重的液化;孔壓的增長曲形狀與施加的荷載有關:當施加荷載為由小到大的形式時,曲形狀為上凹的曲;當施加荷載為幅的正弦荷載或荷載幅由大到小時,曲形狀為上凸的曲,且逐漸趨于穩定。
  11. With the support of methodology and approaches pertaining to medicine, psychology and physiology, this research explores the correlation among speed, roadway alignment, environment and physiological and psychological element of driving behaviors on the basis of abundant data obtained from field study, which lays the foundation for further analysis of what represents a comfortable and safe situation and for the calibration of threshold value of coefficient of transverse force

    本研究應用醫學和心、生理學方面的理論方法和研究手段,通過大量的行車試驗,尋找汽車行車、道路形、道路環境與駕駛員行車心、生理需求的內在關系和規律。以此為基礎,研究在山區雙車道公路上行車,緊張與不緊張,安全與不安全的條件,研究橫向力系數的極限
  12. ( 6 ) as dean number is increased, the secondary flow firstly becomes symmetry and then the anticlockwise vortexes are enlarged, the contours of axial velocity and the stream function become symmetry, the secondary flow is intensified and the friction factor ratio increases

    ( 6 )增大dean數,二次流先趨于對稱而後逆時針方向的二次渦增大,軸向和流函數趨向于對稱,摩擦系數比增大。
  13. Above all, the system has some advantages such as high compute precision, high speed and suited for large structure analysis. during the process of the system researching, a new mesh approach based on advancing front technique for triangle elements was studied. a practical method of generating hexahedron mesh for cellular element method through transfering lines into volumes was worked out

    在軟體研製過程中,提出一種基於前沿生成法的快、穩定性好的平面元胞元網格自動生成方法和三維六面體網格的段轉換法;根據元胞元模型的特點,提出一種穩健性較好的三維元胞元模型消隱方法;通過對應力圖生成技術的研究,提出一種對、色帶圖、濃淡圖均適用的應力圖快生成演算法。
  14. Fluent can imitate relation curve about heat transfer coefficient k and re, friction resistance coefficient f and re, the isoline about dot metrix between velocity field and temperature grads field. it also drafts several operating mode simulated stream field, velocity and temperature grads field

    應用fluent軟體擬合出傳熱系數與re關系曲、摩擦阻力系數與re關系曲與溫場梯點積圖, nu較大的幾個工況的模擬流場、和溫場。
  15. The distribution map produced by spline interpolation is smooth, and spline method has good interpolation effect with rapid run speed in case of dense sampling points

    樣條法插獲得的分布圖比較光滑,當采樣點比較密集時,具有較好的插效果,運算也較快。
  16. This paper relates to some problems about the determination of design ground motion parameters, which include the choice of the attenuation relationship of rock horizontal acceleration response spectrum, the impact of focal depth to rock peak horizontal acceleration and rock response spectrum curves, the choice of intensity envelops function and random input phase, the choice of soil nonlinearity and shear wave velocity, scale of design ground motion response spectrum etc. in the researches of relative aspect, based on a typical section plane of the engineering site, influence of the change of some parameters on design ground motion parameters and the existing errors and corresponding rules are studied by using the method of one dimension model of equivalent linearization

    摘要研究了確定設計地震動參數中涉及的若干問題,其中包括基巖水平加反應譜衰減關系的選擇、震源深對基巖水平加及基巖反應譜曲的影響、強包絡函數及輸入隨機相位的選擇、土體非性特性參數和土層剪切波的選擇、設計地震動反應譜的標定問題。
  17. Based on the self - consistent nonlinear theory of complex cavity gyrotron with gradual transition, a simulation code of self - consistent nonlinear beam - wave interaction has been made, in which the multiple modes interaction with an electron beam and the mode coupling are taken into account. the interaction between the electron beam and hsn - h521 rf field for third - harmonic gyrotron is simulated. the influences of the thickness and the velocity spread and the velocity ratio of the electron beam and the fluctuation of the magnetic field and the technologic errors of complex cavity on the multi - modes interaction with an electron beam are analyzed

    二、在漸變復合腔迴旋管多模自洽非性理論的基礎上,編制了高次諧波漸變復合腔迴旋管多模注?波互作用自洽非性模擬軟體,並對8mm波段三次諧波漸變結構復合腔迴旋管的注? ?波互作用進行了大量的自洽非性數模擬計算與研究,進而分析了電子注的厚零散、、磁場波動、腔體尺寸的加工誤差多種因素對互作用效率的影響。
  18. By theoretical analysis and numerical experimentation, the genetic method for large scaling multi - apex and no smooth mixed integer nonlinear programming can get a good global solution, and it is better than other algorithms used to resolve in the feasibility, stabilization and convergent speed of the solution

    理論分析及數試驗表明:該演算法對大范圍、多峰、非光滑混合整數規劃問題有較好的全局求解能力,在解的精、穩定性和收斂方面優於一般的求解混合整數非性規劃的演算法。
  19. Applied the above theory and the dem program trubal, the unilateral compress problems for the regular generated particles with an interstitial fluid are studied, and the macro - strain - stress curves varied with the fluid properties and the velocity of the wall are gotten. then, he unilateral compress problems for the random generated particles are numerically simulated, and the macro - strain - stress curves are obtained. moreover, the numerical simulation results for the dry and moist cases are compared

    利用上述理論以及demtrubal程序,研究了存在填隙流體時顆粒規則排列單向壓縮問題,得到了宏觀應力應變曲隨流體性質、壁的運動的變化規律;並對隨機排列單向壓縮問題進行了數模擬,得到了宏觀應力應變平均曲;並對干、濕兩種情況下顆粒的模擬結果進行了對比。
  20. In connection with a rc high - rise building, a 3 - d finite - element model is used in seismic response analysis. the calculation results show that the aseismic behavior is excellent

    摘要採用有限元模型,對某鋼筋混凝土高層建築進行非性時程分析。計算結果表明隔震結構的頂層加、層間位移、基底剪力均大大地降低,隔震性能良好。
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