IUVSTA 15th International Vacuum Congress (IVC-15), AVS 48th International Symposium (AVS-48), 11th International Conference on Solid Surfaces (ICSS-11)
    Vacuum Science & Technology Thursday Sessions
       Session VST3-ThP

Paper VST3-ThP6
Pressure Field Calculations in Vacuum Systems

Thursday, November 1, 2001, 5:30 pm, Room 134/135

Session: Vacuum System Modeling Poster Session
Presenter: V. Baranauskas, UNICAMP, Brazil
Authors: F.T. Degasperi, Faculdade de Tecnologia de São Paulo FATEC-SP, Brazil
S.L.L. Verardi, IBILCE, UNESP, São José do Rio Preto., Brazil
V. Baranauskas, UNICAMP, Brazil
Correspondent: Click to Email
The traditional and usual vacuum technology approach to the description of vacuum systems considers them made up of discrete elements. This approach is very useful, but it delivers only the average pressure, not allowing the evaluation of the pressure at each point of the vacuum system. In other words, the detailed pressure distribuition is not determined. In this article we study and describe a powerful method to deal with vacuum problems in the pressure field framework. It uses anlytical and computational tools based on the Finite Elements Method. Details of the mathematical formulation and modeling are given. In special, a detailed discussion about the boundary conditions is also presented. In this article we also calculate and show the pressure distribuition of complex geometries, considering degassing effects from the surfaces.