A high-temperature non-equilibrium flow simulation missing component floating processing method
By using a floating selection of default components and a gas density harmonization correction method, the numerical error caused by gas component separation in high-temperature non-equilibrium flow simulation is solved, achieving higher computational accuracy and stability.
CN122242383APending Publication Date: 2026-06-19CALCULATION AERODYNAMICS INST CHINA AERODYNAMICS RES & DEV CENT
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CALCULATION AERODYNAMICS INST CHINA AERODYNAMICS RES & DEV CENT
- Filing Date
- 2026-05-20
- Publication Date
- 2026-06-19
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Figure CN122242383A_ABST
Abstract
This invention discloses a method for handling missing components in high-temperature nonequilibrium flow simulation, belonging to the fields of aerodynamics and computational fluid dynamics. The method first meshes the aircraft flow field to construct a complete discrete framework for high-temperature nonequilibrium flow numerical simulation, including but not limited to the numerical discretization of the total mass conservation equation and the mass conservation equations for each gas component. Then, during the numerical iteration process, based on the gas component characteristics of each grid micro-element, a default component is selected by floating to complete the gas density matching of each grid micro-element. Finally, gas density harmonization is performed to complete the numerical simulation. This method effectively considers the differences in gas composition in different regions of the flow field, reduces the relative error on each grid micro-element, and achieves high accuracy and stability in numerical simulation.
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