Using an analogy with an Ising-like spin model, we define microcanonical measures for the dynamics of three dimensional (3D) axisymmetric turbulent flow in a Taylor-Couette geometry. We compute the relevant physical quantities and argue that axisymmetry induces a large scale organization in turbulent flows. We show that there exists a low energy, low temperature regime, for which the orthoradia...

In this paper, a semi-analytical solution for magneto-thermo-elastic problem in an axisymmetric functionally graded (FG) hollow rotating disk with constant thickness placed in uniform magnetic and thermal fields with heat convection from disk’s surfaces is presented. Solution for stresses and perturbation of magnetic field vector in a thin FG rotating disk is determined using infinitesimal theo...

Abstract-A method is described for finding the contact pressures and surface displacements of a semiinfinite elastic solid, indented by a rigid, heated punch. The problem is reduced to an equivalent isothermal problem by finding the surface displacements due to temperature changes alone, making use of various properties of the point source solution, and superposing these on the initial profile ...

ABSTRACT Magnetars exhibit a variety of transient high-energy phenomena in the form bursts, outbursts, and giant flares. It is common belief that these events originate sudden release magnetic energy due to rearrangement twisted field. We present global models 3D force-free (FF) non-linear magnetar magnetosphere. solve FF equations following Grad–Rubin approach compactified spherical domain. Ap...

A study of the three-dimensional axisymmetry-breaking instability of an axisymmetric convective #ow associated with crystal growth from bulk of melt is presented. Convection in a vertical cylinder with a parabolic temperature pro"le on the sidewall is considered as a representative model. The main objective is the calculation of critical parameters corresponding to a transition from the steady ...

We develop variational principles to study the structure and the stability of equilibrium states of axisymmetric flows. We show that the axisymmetric Euler equations for inviscid flows admit an infinite number of steady state solutions. We find their general form and provide analytical solutions in some special cases. The system can be trapped in one of these steady states as a result of an inv...

simulation of rough rice drying is one of the proper methods for predicting moisture distribution in the product, and throughout the process of drying. the drying process must be well understood and controlled so that design guidelines which reduce or minimize drying damage to rough rice can be established and improved. therefore, an accurate understanding and description of the drying mechanis...

A transport barrier which is characterized by the steeper temperature or/and density gradient has been observed both in the core region (internal transport barrier : ITB) and edge region (edge transport barrier : ETB) in the plasmas with non-axisymmetric magnetic fields compared with the gyro-Bohm type L-mode transport. A reduction of thermal conductivity and particle diffusivity in these plasm...

As a key component of the solid rocket motor, nozzle ablation is very important to performance motor. In order study influence law on motor performance, two-dimensional axisymmetric model ground state and vacuum before after was constructed basis reference profile, change pressure, temperature velocity with were studied. The comprehensive calculated evaluate performance. It found that profile c...

The hot water sprays are an important part of many industrial processes, where the detailed knowledge of physical phenomena involved in jet transportation, interaction, secondary breakup, evaporation, and coalescence of droplets is important to reach more efficient processes. The objective of the work was to study the water spray jet breakup dynamics, vortex cloud formation, and droplet size di...