boltzmann 中文意思是什麼

Simulation of flow around an airfoil by the lattice boltzmann method

方法的翼型繞流數值模擬

The anharmonic effect of atomic vibration taken into account and from the potential energy which reacts each other among atoms, boltzmann statistical principle used, the relation formula of temperature and the distance change between atoms and coefficient of linear expansion is derived

摘要考慮原子振動的非簡諧效應，從原子間相互作用勢能入手，運用玻爾茲曼統計原理，推出了原子間距的變化與溫度的關系式，並導出了固體的線脹系數。

Simulations of compressible perfect gas flow by lattice boltzmann models

模型模擬可壓縮完全氣體流動

Simulation of excitability of selkov reaction - diffusion system with lattice boltzmann method

反應擴散系統激發性的晶格玻耳茲曼方法模擬

Simulation of flow past square cylinders with a nonuniform lattice boltzmann method

方法模擬方柱繞流

Formal invariability of canonical equation of nonholonomic system boltzmann - hamel

正則方程的形式不變性

For the ten years of late, the cellular automata has made the new progress in hydy nimiee dynamices. by gaining the moment equations from lattice boltzmann equation and using chapman - enskog expansion, the fluid dynamices equation and energy equation of 13 - bit lattice gas automata model with polyvelocity have been deduced. the validity of the model using for non - isothermal fluid dynamics has been proved

近十年來，細胞自動機已在流體力學的研究中取得了進展，應用13 - bit多速格子氣自動機模型，在由格子boltzmann方程求得矩方程的基礎上，根據chapman - enskog展開方法，導出了該模型的宏觀熱流體力學方程，從理論上證明了所建模型對熱流體力學問題描述的正確性。

Application of the lattice boltzmann method one - dimensional dam break simulation

一維潰壩波模擬

Solutions of lattice - boltzmann method and viscosity flow

方法與粘滯流模擬解

Simulation of thermal convection in a vertical slot using the lattice boltzmann model

模型模擬垂直平板間的熱對流

Displacement polarization is directly proportional to loading electric field ; turning - direction polarization results from the average of domain ' s inherent electric moment in the polarization direction by the weight of boltzmann energy

位移極化正比于外加電場；將電疇的固有電矩在極化方向按玻爾茲曼能量取加權平均得到轉向極化。

Abstract : on the basis of equal probability principle, boltzmann statistics and ensemble statistics, this paper has derived the statistical distribution function on multimember system in the quasi - independent particles and obtained the equivalence between boltzmann statistics and ensemble statistics for multimember system

文摘:利用平衡態統計物理的等概率原理，玻耳茲曼統計法和系綜統計法，導出在平衡狀態下多種近獨立粒子系統的粒子數分佈.結果表明，對于宏觀系統而言，玻耳茲曼統計和系綜統計是等價的

Simulation of flow around cylinder with lattice boltzmann method

圓柱繞流的lbm模擬

Simulation of flow fields around a square cylinder with lattice boltzmann method

方法模擬方柱繞流

In this work, we detailedly introduced the whole ideas of rkdg finite element method and the theory of constructing gas - kinetic schemes based on boltzmann equation. and then presented a kind of new computational method for solving id and 2d compressible euler equations, i. e. firstly, we discretize euler equations in the space with discontinuous galerkin finite element method ; secondly, we discretize temporal variable t with runge - kutta formula ; thirdly, for numerical fluxes constructing, we give two kinds of different numerical fluxes - kfvs and bgk numerical fluxes by using gas - kinetic schemes

本文分別對rkdg有限元方法的整個思想和基於boltzmann方程的分子動力學格式的構造思想給予了詳細的介紹，並分別結合rkdg有限元方法與kfvs數值通量和bgk數值通量的構造方法，給出了一種求解一維、二維可壓縮流體力學方程組新的計算方法，即，我們先用間斷有限元方法進行空間離散，然後再對所得到的半離散格式使用runge - kuttatvd方法進行時間離散，得到全離散格式。

Lattice boltzmann method for oscillatory boundary layer of circular cylinder flow

方法模擬圓柱繞流的振蕩邊界層

The isospin effect and k production in intermediate and high energy heavy ion collisions ( hics ) are hot topics in the nuclear physics. based on the isospin - dependent quantum molecular dyanmics ( iqmd ) model and self - consistent relativistic boltzmann - uehling - uhlenbeck ( rbuu ) model, we have studied them and obtained some interesting results. as for the study of isospin in intermediate energy hics, we ' ve investigated how both stength ( q ) and density dependence of symmetry potential ( sp ) affect many measurable observables, such as the yield, phase - space, and isospin distributions of fragments, as well as the correlations between intermediate - mass - fragment ( imf ) multiplicity n and charged - particle multiplicity n, light - charged - particle ( lcp ) multiplicity n, and neutron multiplicity n,

在中能重離子碰撞的同位旋研究方面，分別研究了對稱勢的強度（ c _ s ）和其密度依賴形式對中能重離子核反應各類碎片產物產額、相空間、及其同位旋的分佈，中等質量碎片多重數（ n _ （ imf ） ）與帶電粒子多重數（ n _ c ） 、輕帶電粒子多重數（ n _ k ） 、中子多重數（ n _ n ）的關聯等多種實驗觀測量的影響，以獲取對稱勢中該兩方面的信息，尤其著重於研究如何分別獲取有關該兩方面的信息的途徑。

Secondllv in the 1 d random traffic flow model. the relation function between the correlation and the creation. disappearance. brake probabilities of the vehicles is presented. according to the statistical mechanical approach to the spatial correlation functions. the theoretical results agree with that of the computer simulation. thirdh. based on the bml model. a main - road traffic flow model with two speeds on two dimensions is designed. this model simulate the traffic situation of one main road and several branches in the cit traffic lights placed on the crossing. vehicles breaking ~ vhile running and turning to other direction while jamming. we investigate the ~ ' e1ocitv and flo ~ ~ of the model when the initial densitvthe brake and turning probabilities. the green to signal rati3. thc number of the branches and the period of the signal are changed. then the reasons causing all the kinds of phenomena are analvzed. finallv. we simulate the bml model using the method of lattice boltzmann which ~ vas brought out by liu mu - renand obtain the velocity - density graph similar to the previous result. the upper critical densiw above which there are oniv jamming configurations. and the lo ~ ver critical density below which there are only moving configurations are the same as before. the boltzmann function which is on the lattices shows the moving and jaxmning transition obviouslv. thus it proves the possibilit of this method on the traffic research

接著，建立了和研究了二維二速的主幹道模型，該模型模擬了城市交通中一條主幹道，多條支道的交通情況，在幹道與支道的交叉路口設置紅綠燈，車輛在運行中可以有對突發事件發生反應的剎車，在發生堵塞時，路口的車輛可考慮通過轉向來緩解交通等各種實際情況的發生，給出了車輛演化的演化方程，並通過計算機模擬，研究模型在改變車輛的初始密度、剎車概率、轉向概率、支道數、紅綠燈信號的綠信比、紅綠燈信號周期等各種情況下支、主幹道車輛的速度、流量的變化，並分析在各種情況下交通狀況的成因，提出改善交通的有效措施。最後，在劉慕仁提出的用格子boltzmann方法研究一維決定論交通流的思路下，將此法推廣到對二維bml模型的模擬上，得到了與用以往方法的研究結果相類似的速度-密度圖線，且車輛從運動相到堵塞相轉變的上下臨界密度是一致的，同時分別給出車輛在處于暢通相和堵塞相時， boltzmann函數在格子上的分佈情況，進一步驗證了此法的可行性。

Simulation of gas - solid two phases flow by lattice boltzmann method

方法模擬氣固兩相流

Boltzmann ' s constant

波茲曼常數