The analysis of a new axisymmetric finite element for the simulation of elastic-dynamic properties of gas
A new axisymmetric finite element for the simulation of elastic-dynamic properties of gas is considered. It is obtained in the explicit analytical expressions for calculation of the stiffness matrix elements of the new finite element. The possibility to use the isotropic of finite element to describe elastic and dynamic properties of the gas is demonstrated. The physical constants of the element are defined by calculation from the received dependences, that gives a possibility to use the resources of programs implementing the finite element method to solve the problems of propagation and interaction with obstacles of elastic waves.