GULF 发表于 2025-3-25 04:47:24
Fokker-Planck Equation,Originally, it was developed to describe the motion of Brownian particles and later was generalized to follow the evolution of a set of random variables with linear phenomenological constitutive relations. In this chapter, the Fokker-Planck equation is derived in the framework of Markov processes (SGrating 发表于 2025-3-25 11:28:17
Stochastic Differential Calculus,e formal, yet still understandable, treatment can be found in Gardiner, Handbook of Stochastic Methods, ., Sect. 4.3). The fact that Brownian motion, i.e. the Wiener process, is non-differentiable, and therefore requires its own rules of calculus, is explained in Sect. .. In fact, there are two domiDiverticulitis 发表于 2025-3-25 13:57:08
Path Integrals,uation, the other Eulerian, exemplified in the Fokker-Planck equation. Both descriptions allow to determine the stochastic properties of a system, provided that these properties are known at an earlier time. In addition, though, a third approach exists, where the evolution of a system in time is fortinnitus 发表于 2025-3-25 19:51:41
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Constitutive Relations,cal relations to determine the most general symmetry conditions that are satisfied by the phenomenological coefficients (Sects. . and .). Then, in Sect. ., these conditions are applied to particular cases, obtaining the constitutive relations of pure fluids, multicomponent mixtures, metals and non-iquiet-sleep 发表于 2025-3-26 01:33:59
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Multiple Scale Analysis,e focussed on how to determine the effective properties appearing in the associated constitutive equations. On the other hand, in this chapter we only assume to know the governing equations, describing the transport of momentum, energy and mass at the micro-scale level, and then we intend to averageORBIT 发表于 2025-3-26 16:34:32
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