Thermodynamic concentric multi-layer multi-face shell model and simple symmetrical graphic interpretation

Abstract

The invention provides a thermodynamic concentric multi-layer multi-face shell model and a simple symmetrical graphic interpretation. According to the invention, symmetry existing in thermodynamics is disclosed through geometry, and a large amount of thermodynamic relationships are concluded and demonstrated through direct symmetry, so that thermodynamics becomes simple. According to physical meanings, 44 thermodynamic variables of four types of a unit single phase system are uniformly reasonably arranged on the peak of a concentric multi-layer multi-face shell to form a self-consistent complete thermodynamic model; according to a symmetrical equivalence principle, 12 specially-created active patterns are overlapped on a fixed two-dimensional {1, 0, 0} projection drawing for symmetry transformation for describing more than 300 thermodynamic relationships of 12 kinds one by one; and the created patterns and obtained CP variable results are utilized to simply reliably derive a parameter expression for any required partial derivative.

Description

technical field [0001] The invention relates to the technical field of thermodynamics, in particular to a thermodynamic concentric multi-layer and multi-face shell model and a simple symmetrical diagram method. Background technique [0002] H. Callen put forward a theoretical explanation for thermodynamics, he believed that thermodynamics is a symmetrical science [1,2] . However, this view has not been fully verified. If we want to do this, we must first select as many thermodynamic variables as elements based on the thermodynamic relations that people are familiar with, and form a self-consistent and complete overall framework, and then use specific and exact symmetry to induce and interpret a large number of variables. The thermodynamic relationship, thus confirming this view. [0003] On the other hand, many scholars revealed that thermodynamics has symmetry in their papers. For example, F.O.Koenig classified many important thermodynamic relations into many different ...

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Problems solved by technology

[0006] In view of the foregoing, the present invention provides a thermodynamic concentric multi-layer and multi-face shell model and a simple symmetric diagram method to solve the technical problem of how to use symmetry to make thermodynamics simple and easy

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