During braking,the braking performance becomes worse and worse as the disc temperature rises sharply,which even causes the braking disc to fail. So the temperature and stress distribution in the braking discs are very important to the operation life and braking performance of the discs.

This paper deals with a method by which the stable temperature field and the thermal stress can be calculated with the finite element method, the determination of the boundary condition of the turbine disk temperature field, and the calculation flowchart. The article is ended with some examples and dis cussions.

The spinning process prarameters should be on the following condition:spinningtemperature 294～297℃,lateral blowing speed 0.28～0.30m/s and its temperature 26～28℃,windup filament yarn draw ratio 3.30～3.80.roll temperature 80～85℃ and plate temperature 180～180℃.

Such a high disk temperature is not reached through Jupiter's radiation in existing models of its formation, but it could be provided by UV radiation of the early Sun after the dissipation of the protoplanetary disk.

Cases of positive, approximately constant, and negative radial gradients of the disk temperature are considered.

The effect of an axial magnetic field and disk temperature on the flow and heat transfer are included in the present analysis.

The rise in disk temperature produces an increment in the magnitude of the wall shear associated with the secondary flow.

accretion disk luminosity, disk inner radius, or disk temperature at the inner radius) which can be fixed in some sources based on the optical-UV observations.

Preheating the assembly brought the plastic substrate and film to a temperature closer to the roller temperature, facilitating the lamination process.

This paper deals with a method by which the stable temperature field and the thermal stress can be calculated with the finite element method, the determination of the boundary condition of the turbine disk temperature field, and the calculation flowchart. The article is ended with some examples and dis cussions.

In this paper, we used the more rigorous general relativistic viscose hydrodynami-cal equation to discuss and calculate the temperature profile in the accretion disk around a Kerr black hole. We argued that in the accretion disk around a black hole, it is significant in principle for considering the release of the internal energy of the accreting materials. Taking the effect of internal energy of the accreting materials into account and using the classical theory, we have shown that the occurrence of solution...

In this paper, we used the more rigorous general relativistic viscose hydrodynami-cal equation to discuss and calculate the temperature profile in the accretion disk around a Kerr black hole. We argued that in the accretion disk around a black hole, it is significant in principle for considering the release of the internal energy of the accreting materials. Taking the effect of internal energy of the accreting materials into account and using the classical theory, we have shown that the occurrence of solution of the abnormal temperature profile around a Schwarzschild black hole is possible. In this consistent solution, the temperature profile are not always monotonic, i.e. the temperature is not always a monotonic descending function of the raduis r, not as that of the usual case, but there exists probably a temperature profile with maximum at the certian raduis, in consequence it is existed a cooling region.In order to discuss this subject further, it is natural logically development to using the more rigorous relativistic hydrodynamical equation. Therefore, we will follow the general methods by Bardeen, J. M., Press, W. H., Teukolsky, S. A., and Novikov, I. D.. Thome, K. S. et al. to establish a possible model of accretion disk for the Kerr black hole. Our fundamental assumptions are: (1) The central plane of the disk coincides with the equatorial plane of the black hole. The disk is a perfectly aixal-symmtrie and is thin; (2) The orbital motions of the materials in the disk are controled mainly by the gravitational pull of the hole so that the orbits are very nearly geodesic, while the component of the velocity in the radial direction is very small and the motions in the direction normal to the disk may be neglected; (3) The dominate pressure is the gas pressure, but the radiative pressure is negligble; (4) The radial heat transfer is very small in comparison with the energy radiated from the surface of the disk; (5) The internal energy of the accreting materials in the disk must be calculated. Under these assumptions, our main conclusions obtained are: (1) If the radiative mechanism of the materials in the disk is the black-body radiation, the result is coincidence with the classical theory, whatever kind of the viscose law be; (2) For free-free radiation, the temperature profile is in substance just like the classical case. Thus it is further demonstrated theoretically that there exists indeed such a possible accretion disk around the Kerr black hole which has a fast cooling ring region just laid inside the temperature maximum as its main character. In this cooling ring region, there are probably some pecularities which have not existed for the usual temperature profile.

For the calculation of temperature field of turbine disks by finite elemeat method, it is generally necessary to give some boundary conditions before the calculation can be performed. Thus,it periotsly meels some ecperiento on coonntitions. Sail experiment is known to be very expensive, and precomputed boundary conditions are usually not satisfactory for our purpose. In particular a jet engine in the phase of design or development or a turbine disk whose temperature field requires to be readjusted, the associated...

For the calculation of temperature field of turbine disks by finite elemeat method, it is generally necessary to give some boundary conditions before the calculation can be performed. Thus,it periotsly meels some ecperiento on coonntitions. Sail experiment is known to be very expensive, and precomputed boundary conditions are usually not satisfactory for our purpose. In particular a jet engine in the phase of design or development or a turbine disk whose temperature field requires to be readjusted, the associated boundary conditions cannot be given. This paper has established the direct relationship between the temperature field and operating conditions, and then the above-mentioned difficulties are avoidable. This makes the calculation of the temperature field of turbine disks more rational and quite convenient. A computation example is also presented in this paper.