This paper discusses the problem of moving boundaries in fractal growth and proves that the physical essence of moving boundaries is a physical system which contains a Varied dissipation source.

By introducing a small region in which the crack faces make frictionless contactand making use of a kind of integral equations with moving boundaries,it is proved that there are onlysquare-root singularities near the tips of interface crack in case of that dynamic loads act on it.

Extending the approach of solving the Moore equation for a onedimensional (1D) cavity with one moving boundary, we propose a method to solve numerically the generalized Moore (GM) equation for that with two moving boundaries.

An arbitrary Lagrangian-Eulerian (ALE) finite element method is developed to solve theNavier-Stokes equations with large free surface moving boundaries.

The ALE formulation is a generalized concept to deal with the problem of moving boundaries around a continuum. The fluid motion is described by the original variable Navier-Stokes (N-S) equations and Poisson equations in pressure.

Calculation of incompressible viscous flows in vessels with moving boundaries

Grain growth was characterized by means of pairwise comparisons in EBSD pattern quality across moving boundaries.

In the absence of appreciable dislocation glide, the atomic displacements associated with moving boundaries constitute highly ordered and reversible modes of either plastic or nonlinear pseudo-elastic deformation.

For such networks we propose a CDMA transmission policy, in conjunction with a moving boundaries concept induced by a traffic monitoring high‐level protocol.

Complete asymptotic decomposition of the sojourn probability of a diffusion process in thin domains with moving boundaries

This paper provides a mathematical physics model of gasdynamics for interiorballistics as well as a method for solving given quasiliner partial differentialequations with moving boundary by means of difference form. Its numericalsolution is obtained on the assumption of the velocity ratio K=1. In order toapproach the path of projectile base, a broken-line method is used and the resultabtained is acceptable. Finally, the comparison and analysis of the differencebetween the result of this paper and that...

This paper provides a mathematical physics model of gasdynamics for interiorballistics as well as a method for solving given quasiliner partial differentialequations with moving boundary by means of difference form. Its numericalsolution is obtained on the assumption of the velocity ratio K=1. In order toapproach the path of projectile base, a broken-line method is used and the resultabtained is acceptable. Finally, the comparison and analysis of the differencebetween the result of this paper and that of the conventional method are also given.

It is necessary to measure the continous variation of thermal conductivity of coatings due to structural changes during ablation, so tests had been carried out under the conditions imitate to practical operation by specimens similar to actual components. The thermal diffusivity a and thermal conductivity k have been calculated in this paper from the temperature increasing curves of the inner and outer surfaces of specimen and the size changing in ablating experiment by arc plasma. It is suggested in this paper...

It is necessary to measure the continous variation of thermal conductivity of coatings due to structural changes during ablation, so tests had been carried out under the conditions imitate to practical operation by specimens similar to actual components. The thermal diffusivity a and thermal conductivity k have been calculated in this paper from the temperature increasing curves of the inner and outer surfaces of specimen and the size changing in ablating experiment by arc plasma. It is suggested in this paper that the moving boundary of constant temperature model can be substituted by the fixed boundary of varying temperature model to treat the case with ablation; in the case without ablation, the unknown quantities qc (the heat flow) and k can be cancelled at first by calculating the ratio of temperature increases of the inner and outer surfaces of specimen, and then k and qc can be calculated as the value of a is obtained.

In this paper both the coupling effects between external electric circuit and an A. C. arc column and the effect of moving boundary on the dynamic property of an A. C. arc are studied under assumption that the length of the arc column is much longer than its radius, and that energy transfer by radiation and convection is negligible. Electric circuit and energy equations for the arc column and the annular spa-ce between the arc column and wall of the discharge tube, are given and solved numerically. Curves...

In this paper both the coupling effects between external electric circuit and an A. C. arc column and the effect of moving boundary on the dynamic property of an A. C. arc are studied under assumption that the length of the arc column is much longer than its radius, and that energy transfer by radiation and convection is negligible. Electric circuit and energy equations for the arc column and the annular spa-ce between the arc column and wall of the discharge tube, are given and solved numerically. Curves of waveforms for the arc current, voltage, heat flux potential and the arc boundary axe given. Computed results show that when the circular frequency ω of an A. C. arc is low or time constant θ is small, shch that ωθ<5, the coupling effects and the oscillation of the A. C. arc boundary appear to be important. The waveform of the arc voltage exhibits a rather high re-ignition peak immendiately following the zero current passage. The arc current is no longer the usual cosine waveform, without coupling effects between the external circuit and arc column. It deviates from cosine waveform after current passes zero. The difference depends on the external circuit resistance and the value of the dimensionless parameter ωθ. It should be pointed out that second voltage peak-extinction peak voltage are given forωθ≤1 and agrees well with experiment result.