輸運方程 的英文怎麼說
中文拼音 [shūyùnfāngchéng]
輸運方程
英文
boltzmann equation- 輸 : Ⅰ動詞1 (運輸; 運送) transport; convey 2 [書面語] (捐獻) contribute money; donate 3 (失敗) l...
- 運 : Ⅰ動詞1 (物體位置不斷變化) move; revolve 2 (搬運; 運輸) carry; transport 3 (運用) use; wield...
- 方 : Ⅰ名詞1 (方形; 方體) square 2 [數學] (乘方) involution; power 3 (方向) direction 4 (方面) ...
- 程 : 名詞1 (規章; 法式) rule; regulation 2 (進度; 程序) order; procedure 3 (路途; 一段路) journe...
- 輸運 : transport
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The way to get ko was given in this paper. by this way, the turbulence control equations were constructed from reynold equations with static pressure supposition and boussinesq ' s turbulence viscidity coefficient supposition and the salinity transportation equations, which are representative of the matter transportation equations, are given. the integrated deduction and corresponding boundary conditions are also given
根據上述思想,從雷諾方程出發,採用靜壓假定和包辛內斯克的紊動粘性系數假說,建立了新坐標系中的紊流控制方程組,同時給出了對物質輸運過程具有代表性的鹽度輸運方程、相應的邊界條件及完整的推導過程。Suspended and bed load transport were simulated with a non - equilibrium method. the source treatments in sediment transport equations, suspended load carrying capacity of the non - uniform material and exchange of size - distribution of the bed material are presented. 5
二維懸沙和底沙運移採用不平衡輸沙模式,分析輸沙方程的源項處理以及非均勻沙分組挾沙能力和床沙級配調整。Finally, the mechanisms behind the instability of fibre suspensions are presented from a point of view of vorticity. effects of fibres are investigated through equations of vorticity transport and enstrophy balance
從渦量的角度分析纖維改變懸浮流動穩定性的機理,利用渦量輸運方程與渦能平衡方程分析纖維的作用。According to the demand of the concept design of china spallation neutron source ( csns ), the target station, i. e. the target, the reflector and the moderator have been simulated and optimized using monte carlo simulation software, nmtc / jam and mcnp4a, firstly. the neutron flux escaping from the target and the moderator and the heat deposition in the target, the reflector and the moderator are calculated. these results provided essential data as a basis of the spallation neutron source design
本論文結合當前中國散裂中子源( chinaspallationneutronsource , csns )工程概念設計的迫切需要,選擇國際上廣泛使用的基於蒙特?卡羅方法,用於模擬粒子輸運過程的程序mcnp4a和nmtc jam作為研究工具,首次對csns靶站進行了全面的模擬與優化,內容包括靶、反射體與慢化器系統的中子通量分佈以及熱量沉積,同時計算了靶的溫度場與應力場分佈。Nuclear reaction is the important mechanism for causing single event upset as well, especially for high - energy protons. all the formula needed for simulating proton - induced radiation effects are deduced. to bypass the obstacle of lacking nuclear reaction parameters of high - energy protons interacting with silicon, the author successfully obtained the necessary nuclear reaction cross sections by combining an intranuclear cascade nuclear reaction model with monte - carlo simulation, which are applied to the calculation of seu
整理、推導了數值模擬所需要的計算公式及連續慢化近似下的輸運方程,自行編制了輻射屏蔽計算程序、單粒子效應計算程序、熱?力學效應計算程序,並對所有計算程序進行了對應的驗算,計算結果與公開發表的理論或實驗結果相符合。The results of simulations are : i ) energies of the incident ions to the target are determined mainly by the voltage across the cathode sheath, with a majority of ions " energy vary around the sheath voltage ; ions nearly normally bombard the target ; ions mainly locate above the sputtering holes because of the influence of the magnetic field, and the incident ions mainly come from the region ; the ions undergo several collisions during transportation, but that do n ' t matter much
主要模擬結果有: ? )入射離子到達靶面時的能量主要受到了射頻輝光放電中陰極殼層西北工業大學碩士學位論文李陽平電壓的影響,大部分離子的入射能量在陰極殼層電壓值附近,離子濺射時接近於垂直入射;射頻輝光放電受到陰極磁場的影響,等離子體中的離子主要集中在靶面濺射坑的上方,且入射離子主要來自這個區域;入射離子在輸運過程中和背景氣體分子有少量的碰撞,但影響不太大。Experiment results show that the diffusion equation can be used to describe the transportation process of near infrared photons accurately in scattering media. however, a relatively large error exists for the case of low scattering tissue, and as a result, this model can not be employed for the ot reconstruction in this case
實驗結果表明,擴散方程可以較為準確地描述光子在強散射介質中的輸運過程;但對弱散射介質擴散方程模型卻存在較大的誤差,因而不適用於該種情況下的圖像重建。This paper deals with the monte carlo simulation of high - energy protons transport in silicon, in which the intra - nuclear cascade model is used to deal with proton nuclear reaction process. and the results of radiation effects of proton in silicon and p - seu ( proton induced single event upset ) cross section of some electronic devices are presented
本文用蒙特卡羅方法對高能質子(最高能量在500mev以上)在硅材料中的輸運過程進行了模擬,作了用核內級聯模型計算質子核反應的嘗試,計算了質子對硅材料的輻射效應及其對硅器件的單粒子效應。The equations which are used in the radiation hydrodynamic model include the hydrodynamic equation of plasma, the absorption equation of laser, non - lte electron occupation probability equations, electron ion and photon energy equations ( three - temperature equations ), and the state equation of matter and so on
考慮的方程有:等離子體流體力學方程組,激光吸收方程,非局域熱動平衡電離下電子占據概率的速率方程組,電子離子的能量守恆方程組和光子的能量輸運方程(三溫方程組) ,關于元素不透明度的方程,以及描述物質狀態的方程等。For the present two les models, adopting the subgrid eddy viscosity concept and introducing the transport equation of turbulence energy k, the subgrid scale turbulence is parameterized by the turbulence energy k and the length scale of turbulence / ( k - 1 model ). in addition, vegetation is considered as an internal source of resistant force and turbulence energy
在應用大渦模擬方法求解數值計算模型控制方程時,亞網格雷諾應力項沿用了亞網格渦粘性系數思路,引入亞網格紊流脈動動能k的輸運方程,建立了關于亞網格紊流脈動動能k和紊流特徵長度l的k - l模型求解。Transport equation of angular momentum
角動量輸運方程Application of homogeneous k - equation turbulent closure model in the coastal sea
齊次湍流動能輸運方程封閉模型在淺海動力學中的應用Discrete ordinates method for three - dimensional neutron transport equation based on unstructured - meshes
三維中子輸運方程的非結構網格離散縱標數值解法A coupled method of spectra and streamline diffusion for transport equation and applications to neutron well - logging
輸運方程的譜流線擴散耦合方法及其在中子測井中的應用2. based on the radiation transfer equation, light scattering by coating layer is studied by using monte carlo method
2 、基於輻射輸運方程,運用蒙特卡羅方法研究具有任意塗層的光散射。When a new getting from interpolation is positive, set - to the left side of neutron transport equation as usual
因此,把/放在輸運方程左端作為吸收項對于深次臨界下的計算是不合適的。Three - dimensional gas flow field in the new vortex quick separation system with an inner component of fcc disengager was simulated based on the reynolds stress model ( rsm ) provided by cfx
摘要用cfx軟體對催化裂化沉降器新型旋流快分器的氣相流場進行了三維模擬,湍流模型採用雷諾應力輸運方程模型。When a < 0, move / v to the right side and look upon it as source term. the calculation result shows that the r indirect method can compute deeper than k indirect method in subcritical system. but the y indirect method has no inner iteration, it ca n ' t ensure the convergence of neutron flux and it will also fail in deep subcritical
作參數的嘗試插值法把/分情況處理,當由插值法得到的新值大於零時,仍將/放在輸運方程左端作為吸收項,若0 ,則將其移至右端作為源項處理計算表明,該方法比作參數的嘗試插值法算得的次臨界度深一些,但由於沒有內迭代過程,不能保證通量收斂,在深次臨界情形下同樣會失效。The transfer function of the servo system in laplace - domain is transformed to time - domain to produce the servo state equations. by solving aerodynamic equations, structure state equations and servo state equations in every time step, the aeroservoelastic problem can be simulated in time domain
將伺服機構的傳遞函數轉化為狀態方程和輸出方程,在時間域內同時求解結構運動方程、非定常氣動力、伺服狀態方程和輸出方程,實現了帶有伺服機構的氣動彈性系統的時域模擬。The contents and original points of view are as follows : 1. the complete depth - averaged tubulence model is adopted to compare with the tradional depth - averaged model. the non - uniformity of velocity in z axis is considered in the former. the rigid - lid assumption, which was adopted for long time, is discarded, while the transpot equation of kinetic energy of dispersion is introduced. the 2d term ' s distribution of space - time is calculated
論文包含的主要內容及創新點有: 1 、引進了完全深度平均紊流模型,與傳統深度平均紊流模型相比,該模型計入了流速在深度方向分佈不均勻的影響;去掉了深度平均紊流計算中長期採用的「剛蓋假定」 ,同時模型通過引進離散動能的輸運方程,計算了二維離散項的時空分佈。分享友人