New non-equilibrium thermal-hydraulic model, (I) Theory.
نویسندگان
چکیده
منابع مشابه
Thermal photon production rate from non-equilibrium quantum field theory
In the framework of closed time path thermal field theory we investigate the production rate of hard thermal photons from a QCD plasma away from equilibrium. Dynamical screening provides a finite rate for chemically non-equilibrated distributions of quarks and gluons just as it does in the equilibrium situation. Pinch singularities are shown to be absent in the real photon rate even away from e...
متن کاملHydraulic Model Studies of Non-Symmetric Y Branches In Karun I (RESEARCH NOTE)
Power stations with high heads are nowadays almost without exception designed so as to have one pipeline, or a few pipelines, supplying the water to the turbines. The penstocks are connected to a distributor, which has the task of distributing the flow with the lowest possible losses of energy to the individual turbines. The function and location of this section of the plant make it understanda...
متن کاملThermal Field Theory in Equilibrium
Thermal field theory has applications in many areas of physics and one of those is the early Universe. There is an excess of matter over antimatter in the present Universe. Unless this was an initial condition in the Big Bang Scenario, this baryon asymmetry must have been created during the evolution of the Universe. According to Sakarov’s three criteria for baryogenesis, the Universe must have...
متن کاملLattice ellipsoidal statistical BGK model for thermal non- equilibrium flows
A thermal lattice Boltzmann model is constructed on the basis of the ellipsoidal statistical Bhatnagar-Gross-Krook (ES-BGK) collision operator via the Hermite moment representation. The resulting lattice ES-BGK model uses a single distribution function and features an adjustable Prandtl number. Numerical simulations show that using a moderate discrete velocity set, this model can accurately rec...
متن کاملEquilibrium and Non-equilibrium Quantum Field Theory
We first focus in Chapter 2 on infrared effects in finite–temperature quantum field theory. We propose a simple mathematical method (based on the largest–time equation and the Dyson–Schwinger equations) which allows systematic calculations of the change of density in energy/particles in heat–bath during a scattering/decay of external particles within the heat bath. A careful analysis reveals th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Nuclear Science and Technology
سال: 1984
ISSN: 1881-1248,0022-3131
DOI: 10.3327/jnst.21.657