一种基于算子分裂的含能材料的能量计算方法及系统
By splitting the multi-medium hydrodynamic model using the operator splitting method and the finite volume discretization formula, the problems of sound velocity limitation and numerical oscillation in the energy calculation of energetic materials are solved, and the accuracy of energy calculation in multi-step chemical reaction processes is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING UNIV OF TECH
- Filing Date
- 2024-02-27
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies for calculating the energy of energetic materials suffer from difficulties in experimental measurement, high costs, limitations in the time step of explicit algorithms, and problems with accuracy and numerical oscillations, making it difficult to accurately calculate energy changes in multi-step chemical reaction processes.
The multi-medium hydrodynamic model is split using the operator splitting method to obtain the surface pressure and velocity at the intermediate moment of the split. The Lagrangian density, momentum, energy and specific volume are calculated using the finite volume discretization formula. The Riemann problem is handled by combining WENO reconstruction and HLLC solver, eliminating the sound speed limitation and improving the calculation accuracy.
It enables accurate calculation of the energy of energetic materials in multi-step chemical reaction processes, eliminates the sound velocity limitation, improves calculation accuracy and reduces numerical oscillations, and provides a simple and practical calculation method.
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Figure CN118248256B_ABST