نتایج جستجو برای: maxwell model

تعداد نتایج: 2112974  

2002
Hisao Hayakawa

Hydrodynamic equations for an inelastic Maxwell model are derived from the inelastic Boltzmann equation based on a systematic Chapman-Enskog perturbative scheme. Transport coefficients appear in Navier-Stokes order have been determined as a function of the restitution coefficient e, which cannot be defined for small e as a result of the high energy tail of the velocity distribution function obe...

2000
Hiroyuki Takata

We present a scenario for deriving Maxwell theory from IIB matrix model. Four dimensional spacetime and theories on it relate different dimensional ones by applying appropriate limits of the backgrounds of matrix model. It is understood by looking at open strings bits as bi-local fields on the spacetime, which are decoupled from the bulk in the limits. The origin of electric-magnetic duality is...

1998
E. Ben-Naim P. L. Krapivsky

We investigate traffic flows using the kinetic Boltzmann equations with a Maxwell collision integral. This approach allows analytical determination of the transient behavior and the size distributions. The relaxation of the car and cluster velocity distributions towards steady state is characterized by a wide range of velocitydependent relaxation scales, R,t(v),R , with R the ratio of the passi...

Journal: :علوم و تکنولوژی پلیمر 0
محمدرضا عرب بافرانی تهران، دانشگاه تربیت مدرس، دانشکده مهندسی شیمی، بخش مهندسی پلیمر، صندوق پستی 114-14115 مهدی رزاقی کاشانی تهران، دانشگاه تربیت مدرس، دانشکده مهندسی شیمی، بخش مهندسی پلیمر، صندوق پستی 114-14115

one of the most important factors that affect tire friction is surface roughness, which determines the size of the real contact area, real pressure distribution on the contact interface, and scales of mechanical engagement between viscoelastic rubber and a rough substrate. the need to predict coefficient of friction (cof) for rubber on rough surfaces for applications such as traction of tires o...

Journal: :Contemporary Mathematics. Fundamental Directions 2017

Journal: :Classical and Quantum Gravity 2013

Journal: :Applied Mathematics and Computation 2006
Youbing Yin Ke-Qin Zhu

The unidirectional oscillating flow of a viscoelastic fluid with the fractional Maxwell model is studied. The flow is produced by a periodic pressure gradient in an infinite straight pipe. Exact solutions are obtained in the time and frequency domains by using Fourier transform. The fractional Maxwell model exhibits resonance phenomena similar to that of the Maxwell model. However, the number o...

2002
Andrés Santos

Due to the mathematical complexity of the Boltzmann equation for inelastic hard spheres, a kinetic model has recently been proposed whereby the collision rate (which is proportional to the relative velocity for hard spheres) is replaced by an average velocity-independent value. The resulting inelastic Maxwell model has received a large amount of recent interest, especially in connection with th...

Journal: :Progress of Theoretical Physics 1973

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