作者: 混合,攙雜 時間: 2025-3-21 22:24
Kinetic Theory of Inelastic Hard Spheres, the Enskog-Boltzmann collision operator, however, prevents the possibility of obtaining exact results, and for this reason there is often a preference for kinetic models that are mathematically simpler than the original equations but capture their most relevant physical properties. Thus, the chapte作者: Strength 時間: 2025-3-22 00:40
,Navier–Stokes Transport Coefficients for Monocomponent Granular Gases. II. Simulations and Applicatcation, granular hydrodynamics is employed to obtain the temperature and density profiles of a granular fluid in a steady state with gravity. In agreement with simulations and experiments, the theory predicts that the temperature (density) profile as a function of the height of the system presents a作者: 命令變成大炮 時間: 2025-3-22 07:21 作者: fulmination 時間: 2025-3-22 11:29
Non-Newtonian Steady States for Granular Gases,nductivity coefficients can be identified. Determination of the non-Newtonian transport coefficients is done by following analytical and computational routes. Comparison between theoretical predictions and simulation results shows in general good agreement, even for conditions of strong inelasticity作者: reaching 時間: 2025-3-22 16:40 作者: reaching 時間: 2025-3-22 18:40
Transport Properties for Driven Granular Gases,simulations. Similarly to undriven systems, the theory compares quite well with simulations for conditions of practical interest. Finally, thermal diffusion segregation for driven granular mixtures is also analyzed.作者: 針葉 時間: 2025-3-22 23:12 作者: Costume 時間: 2025-3-23 04:00 作者: DEVIL 時間: 2025-3-23 06:01 作者: 落葉劑 時間: 2025-3-23 10:46
https://doi.org/10.1007/978-3-7091-7869-0nductivity coefficients can be identified. Determination of the non-Newtonian transport coefficients is done by following analytical and computational routes. Comparison between theoretical predictions and simulation results shows in general good agreement, even for conditions of strong inelasticity作者: 北極人 時間: 2025-3-23 15:11 作者: Fibrillation 時間: 2025-3-23 21:45
https://doi.org/10.1007/978-3-642-52734-0simulations. Similarly to undriven systems, the theory compares quite well with simulations for conditions of practical interest. Finally, thermal diffusion segregation for driven granular mixtures is also analyzed.作者: BILE 時間: 2025-3-24 01:41 作者: Headstrong 時間: 2025-3-24 04:05
Homogeneous Cooling State,ecays in time) for mono- and multicomponent granular gases. Unlike ordinary or classical gases, the Maxwell–Boltzmann velocity distribution is not a solution to the Boltzmann kinetic equation and the exact form of this solution is still unknown. For long times, however, the kinetic equation admits a作者: monopoly 時間: 2025-3-24 07:35
,Navier–Stokes Transport Coefficients for Monocomponent Granular Gases. I. Theoretical Results,se to the . homogeneous cooling state. The analysis is performed to first-order in spatial gradients, allowing the identification of Navier–Stokes transport coefficients associated with heat and momentum fluxes along with the first-order contribution to the cooling rate. The transport coefficients a作者: 切碎 時間: 2025-3-24 11:28
,Navier–Stokes Transport Coefficients for Monocomponent Granular Gases. II. Simulations and Applicat out by several research groups. The comparison shows generally good agreement even in conditions of strong collisional dissipation. From this we appreciate the ability of kinetic theory to quantitatively capture the influence of dissipation on the transport properties of granular fluids. Once the r作者: CREST 時間: 2025-3-24 18:00
,Navier–Stokes Transport Coefficients for Multicomponent Granular Gases. I. Theoretical Results,h monocomponent systems, an analysis is performed to first-order in spatial gradients. The Navier–Stokes transport coefficients and the first-order contribution to the cooling rate are obtained in terms of the solution to a set of coupled linear integral equations. These equations are approximately 作者: THE 時間: 2025-3-24 21:18
,Navier–Stokes Transport Coefficients for Multicomponent Granular Gases. II. Simulations and Applicaith controlled numerical simulations of certain specific situations. In particular, the tracer diffusion and shear viscosity coefficients are obtained by numerically solving the Boltzmann and Enskog kinetic equations by means of the Direct Simulation Monte Carlo method. As in the case of monocompone作者: Deject 時間: 2025-3-25 02:28 作者: Legion 時間: 2025-3-25 05:14
Transport Around Steady Simple Shear Flow in Dilute Granular Gases, of the Boltzmann kinetic equation through first-order in the deviations of the hydrodynamic fields with respect to their values in the (unperturbed) non-Newtonian shear flow state. Given that the reference state (zeroth-order approximation in the Chapman–Enskog-like expansion) applies to arbitrary 作者: gospel 時間: 2025-3-25 11:07 作者: Devastate 時間: 2025-3-25 15:31 作者: sundowning 時間: 2025-3-25 19:05
https://doi.org/10.1007/978-3-662-41551-1at low and moderate densities. We briefly review first the dynamics of binary collisions for some of the models most widely used in the literature, and then we outline heuristically the derivation of the Boltzmann and Enskog kinetic equations for monocomponent granular gases. A connection with hydro作者: 行為 時間: 2025-3-25 23:11 作者: 讓你明白 時間: 2025-3-26 03:33 作者: dagger 時間: 2025-3-26 06:58 作者: Hot-Flash 時間: 2025-3-26 12:32
https://doi.org/10.1007/978-3-0348-5736-9h monocomponent systems, an analysis is performed to first-order in spatial gradients. The Navier–Stokes transport coefficients and the first-order contribution to the cooling rate are obtained in terms of the solution to a set of coupled linear integral equations. These equations are approximately 作者: nocturnal 時間: 2025-3-26 16:19 作者: 并置 時間: 2025-3-26 18:07
https://doi.org/10.1007/978-3-7091-7869-0 the well-known simple or uniform shear flow where a granular gas under constant shear rate and uniform temperature and density supports a steady state. In this state, collisional cooling compensates locally for viscous heating, hence the viscosity function and the two viscometric functions are nonl作者: Inordinate 時間: 2025-3-26 22:11 作者: 箴言 時間: 2025-3-27 01:43 作者: 半身雕像 時間: 2025-3-27 06:06
https://doi.org/10.1007/978-3-642-52734-0of the interstitial fluid surrounding the solid particles. As a first step, the steady homogeneous state is analyzed. As with undriven granular gases, it can be seen that the kinetic equation admits a scaled solution where dependence on granular temperature is encoded not only through the scaled vel作者: Graphite 時間: 2025-3-27 11:54
,Vorhersage des tats?chlichen Wetters, scaling solution whose form can be approximately obtained by considering the leading terms in a Sonine (Laguerre) polynomial expansion. A new and surprising result (compared to its ordinary gas counterpart) is found for granular mixtures: the well-known energy equipartition theorem is broken for freely cooling systems.作者: 生銹 時間: 2025-3-27 16:30 作者: 憤慨一下 時間: 2025-3-27 19:12
https://doi.org/10.1007/978-3-322-90609-0solved by using different approximate methods that yield explicit expressions for the transport coefficients in terms of the coefficient of restitution and the solid volume fraction. Finally, the results obtained from the Chapman–Enskog method are compared against those derived from different approaches.作者: 勤勞 時間: 2025-3-27 23:44
https://doi.org/10.1007/978-3-0348-5736-9ained in terms of concentrations, masses and sizes of the constituents of the mixture, solid volume fraction, and coefficients of restitution. The dependence of these coefficients on the parameter space of the system is amply illustrated in the case of a binary mixture.作者: 防止 時間: 2025-3-28 02:26 作者: 蜿蜒而流 時間: 2025-3-28 09:33
,Navier–Stokes Transport Coefficients for Monocomponent Granular Gases. I. Theoretical Results,solved by using different approximate methods that yield explicit expressions for the transport coefficients in terms of the coefficient of restitution and the solid volume fraction. Finally, the results obtained from the Chapman–Enskog method are compared against those derived from different approaches.作者: SCORE 時間: 2025-3-28 14:21 作者: 拍翅 時間: 2025-3-28 16:12
Transport Around Steady Simple Shear Flow in Dilute Granular Gases,sotropy in velocity space induced in the system by the shear flow, mass, momentum, and heat fluxes are given in terms of tensorial transport coefficients instead of the conventional scalar Navier–Stokes transport coefficients. The study is carried out for monocomponent granular gases and binary granular mixtures in the tracer limit.作者: 舉止粗野的人 時間: 2025-3-28 19:04
A Future Food Aid Regime: Implications of the Final Act of the Uruguay Rounds will come to appreciate how the final emergence profile of the definitive restoration reflects the complex interplay of components below the visible smile zone. Helpful flow charts are included that will assist in optimal performance of the described procedures.?978-3-319-84468-8978-3-319-50706-4作者: Granular 時間: 2025-3-29 01:10
Aufbau der Gesamtanlagen,ei der Aufstellung mehrerer Gaserzeuger kommt, wie Abb. 116 erkennen l??t, in erster Linie bei zentraler Anordnung ein Absperrventil und meist zur Ablagerung des mechanisch mitgerissenen Staubesein Staubsack in Frage. Vom Ventil weg gelangt das Gas in eine gemeinsame oberirdische Leitung oder in einen gemauerten Kanal.作者: syncope 時間: 2025-3-29 03:45
Conclusions and Further Directions We also envisage the use of our new model to tackle some long term open problems in higher category theory. We end with a discussion of a possible extension of the weakly globular approach to the (., .)-case.作者: invert 時間: 2025-3-29 07:16
Gehirn (Enzephalon)itig, zwei . (Telen zephalon). Der hintere Anteil des Vorderhirns wird von ihnen zunehmend eingezw?ngt und damit zum Zwischenhirn (Dienzephalon) (Abb. 29). Das vordere Ende des Neuralrohrs bleibt zeitlebens dünnwandig als Lamina terminalis.
