volume flux 中文意思是什麼

volume flux 解釋
容積流量
  • volume : n. 1. 卷,冊;書籍;【歷史】書卷,卷軸。2. 〈常 pl. 〉大塊,大量,許多。3. 體積;容積;分量,額;【物、樂】音量;強度,響度。
  • flux : n 1 流,流出;流動。2 漲潮。3 不斷的變動,波動。4 【物理學】流量,通量,電通量,磁通量。5 熔解,...
  1. For incompressible fluids, both the mass flux and the volume flux are constant in a tube of flow.

    對于不可壓縮的流體來說,流管中的質量通量和體積通量都是恆定不變的。
  2. The position and size of the monochromator, focusing curvature radii and tilting angles of the germanium focusing monochromator under different different take - off angle, size and divergency of the second collimator and intensity loss due to the use of it were determined. the neutron flux at different wavelength, under different reflection and take - off angle of the monochromator and divergency of the first collimator, were given. the simulation on the aperture used for limiting beam size in front of the sample showed that, smaller the size of the aperture and further the distance from the aperture to the sample, greater the loss of the intensity and more serious the spread of the beam along vertical direction at the sample position which makes the practical sampling volume greater than expected

    用蒙特卡羅模擬方法對中子應力衍射譜儀的設計方案進行了優化研究,提出了一系列可供參考的數據:確定了單色器的位置、尺寸、垂直聚焦單色器在不同起飛角下的聚焦曲率半徑和傾角;討論了第二準直器的尺寸和發散,以及使用第二準直器造成的強度損失;給出了在不同單色器反射面、起飛角、中子波長和第一準直器發散度的情況下樣品處的中子注量率,以及多種組合情況下譜儀的解析度曲線;對限束方孔的尺寸、距離樣品遠近對強度損失和測量中的影響做了深入研究。
  3. 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氣動反設計研究,以及有升力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積數值求解方法,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面的有效結合,成功發展了三維機翼的氣動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。
  4. It is very difficult to analyze flame radiation in the cylinder of a diesel engine by theoretical method since flame radiation is a function of many parameters, such as the combustion process, the geometrical description of the chamber, the soot formation and oxidation processes, the soot radiant temperature and soot absorption coefficient. the radiant property of the flame in a cylinder is dependent on the combustion process. but the thermodynamic state of real engine cycles can be analyzed from the pressure - volume diagrams in the cylinder. thus a new thermodynamic computational model is set up for the flame radiation in the cylinder of a diesel engine based on the indirect relationship between the flame radiation and the pressure - volume diagram of the combustion process in this paper. the flame radiant heat flux in the cylinder of a di diesel engine is calculated with the variation of crank angle by this model. compared with measured values, the result of the computational values shows the model is available to represent the effects of flame radiation

    柴油機缸內的火焰輻射受諸多因素的影響,用理論分析法來確定它是相當困難的,由於柴油機缸內火焰輻射特性依賴于缸內的燃燒過程,而燃燒過程中的實際熱力狀態又可用示功圖來分析,因此藉助於火焰輻射與缸內熱力參數之間的這種間接關系,建立了一種計算柴油機缸內火焰輻射傳熱的新模型,利用該模型對一臺直噴柴油機缸內火焰輻射熱流量隨曲軸轉角的變化情況進行了計算,將計算結果與實測結果進行了比較,表明該模型能較好預測缸內火焰輻射傳熱量。
  5. In chap. 2, the observational characteristics of the radio burst of the bastille event were discussed in detail. in chap. 3, we described the associated foundational theories with the model of a magnetic - mirror loop, consisting of the flux duct, the magnetic reconnection, the plasma wave, the wave - wave interaction and so on. then in chap. 4, using the model of magnetic - mirror loop to estimate quantitatively, we obtain the magnetic field strength, the number of solitons in a single fiber source, the volume of the source and the ducting parameters

    對疊加於太陽射電型爆發上的精細結構,作出了觀測特徵分析,發現大多數纖維結構的觀測特徵在米波段和分米波段是相似的,由此提出它們可能源於相似的輻射機制,並採用磁鏡環模型,首次對分米波段的纖維結構進行分析計算,推算了纖維輻射源區磁場強度大小及輻射源的空間尺度,且相關物理參量的推算量級與其他人的研究工作結果是一致的,從而對該爆發源區的物理環境及過程有了進一步深入的認識。
  6. Thermal dissipation of electronic equipments is rising more and more quickly, but their volume is smaller and smaller. the heat flux of component is increasing geminately. the fluid cooling system plays an important role in industry production, aeronautics and astronautics, military equipment of national defence

    隨著電子設備的發熱量越來越大,而器件本身的體積越來越小,器件的熱流密度成倍增加,液體冷卻系統在工業生產、航空航天、國防軍事裝備等領域的電子設備散熱設計中發揮著重要作用。
  7. Fuel pump and lube pump used in present aero - engine and space - engine are oriented to smaller volume, bigger flux and higher pressure

    目前,航空航天發動機控制系統中的燃油供油泵、滑油增壓泵都在向著小體積、高轉速、大流量、高壓力的方向發展。
  8. In order to change the behindhand state in measurement of natural gas of liaohe oil field, we make the technique reformation, using the normal hole - board, intelligent sensor, natural gas compression factor, arithmetic of volume flux and compensatory technology

    為了改變遼河油田天然氣落後的計量狀態,我們採用標準孔板、智能傳感器、國際標準天然氣壓縮因子、體積流量演算法和補償技術進行天然氣計量技術改造。
  9. With the fdtd method to solve the maxwell equations, with the finite - volume method to solve the n - s equations and with the single temperature local thermal equilibrium to solve plasma, first time to adopt the method of all numerical simulation, the coupling flow field of microwave plasma within resonant cavity of mpt was analyzed. for tm011 model and tem model, the matching relation between various parameters and its influence on the coupling flow field of microwave plasma within resonant cavity of mpt was studied separately. the reasonable selection of miniaturization design parameters was pointed out in the numerical simulation to be used in mpt miniaturization, i. e. throat, gas flux and microwave power should be smaller suitable after miniaturization

    採用fdtd法求解maxwell方程、有限體積法求解n - s方程、單溫度局域熱平衡模型求解等離子體參數,首次用全數值方法對mpt諧振腔進行了微波等離子體耦合流場的數值模擬,分別分析了tm _ ( 011 )和tem兩種模式各自的參數匹配關系及其對微波等離子體流場的影響;應用於小型化mpt時,指出了小型化設計參數的合理選取,即:小型化后的mpt ,喉徑小、工質流量小,消耗的微波功率也小。
  10. In this thesis, a 2 - d axial symmetric n - s equation was solved by using steger - warming flux splitting, muscl, b - l model and finite volume method to simulate an experiment, which was to observe explosion phenomenon

    本文用steger - warming分裂和b - l湍流模型的有限體積演算法求解二維軸對稱navier - stokes方程,數值模擬了錐形激波管中爆炸波運動和爆炸波正壓和負壓脈沖。
  11. Ebu - arrehenius and second - moment turbulent combustion model are used to determine the reaction rate. to consider the influence of heat radiation on the gas temperature and wall temperature, the six flux model is applied to predictions of heat flux distributions. the discretization of governing equations on a non - staggered grid system is performed by hybrid scheme over the control volume, and discretization equations are solved with simple algorithm

    利用橢圓型微分方程法和區域法生成三維貼體網格,文中數學模型有紊流模型、紊流燃燒模型和輻射模型,採用k -雙方程模型來預估紊流特性, ebu - arrehenius和二階矩紊流燃燒模型來估算化學反應速率,六通量輻射模型預估輻射通量,以便考慮熱輻射對壁溫和氣流溫度的影響。
  12. System volume flux was gained by loop integral the momentum equation

    利用環路積分的方法求解動量方程,進一步求得系統的體積流量。
  13. Through the flux / retention experiments it was shown that when the applied pressure rises, both volume flux and rejection increase, too ; and that the higher the feed salt concentration, the lower rejection and volume flux. the charged mosaic membranes could permeate mono - valent and bi - valent inorganic salts, but reject the low - molecular - weight organics. furthermore, sem was used to observe the surface and the cross section of the composite membrane

    另外,膜性能表徵結果顯示:隨著操作壓力的增加,膜通量及膜對電解質的截留率均趨增加;而隨著原料液濃度的增加,通量和截留率都有所降低;膜對低分子有機物和無機電解質混合體系(如:亞硝基紅鹽與naci混合體系;蔗糖與nazso ;混合體系等)的選擇性較高,能實現其有效分離。
  14. 7. the upwind finite volume method based on flux vector splitting is investigated, especially the splitting scheme of steger - warming, van leer, roe and ausm +

    研究了基於矢通量分裂的高解析度迎風型有限體積法,重點研究了siegerwarming 、 vnleer 、 roe以及ausm 」分裂格式。
  15. A numerical method, based on single temperature sensor, constant heat flux assumed and arbitrary number future time steps, was employed to determine the heat flux during rapid cooling on high temperature surface with multiply immersed impinging water jets the finite volume discretization method and treatment of boundary condition were presented

    摘要基於單點測溫、常熱流假設,任意未來時間步長的導熱反問題演算法求解浸沒水射流冷卻過程的熱流密度;採用有限容積法離散方程,附加源項法處理邊界條件。
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