A Data Mapping Method for Heterogeneous Grid Interface

Abstract

A mapping method for heterogeneous grid interface data comprises following steps: (1) according to the transmission direction of heterogeneous grid interface data, the grid area where field data in the interface is to be updated is defined as a target area, the grid area which provides data in the interface is defined as a source area; (2) searching for assigned nodes in the target area, wherein the assigned nodes are target nodes or all nodes in the source area or unit information corresponding to units and labeling the searched nodes or units; (3) establishing the mapping relationship between nodes or units in the target area and the corresponding nodes or units in the source area; (4) mapping all the nodes or units in the target area with the corresponding nodes or units in the source area; (5) determining whether or not the established relationships are unique, if the relationships are unique, then directly turning to steps (6), or else, selecting the mapping relationship having the shortest normal distance as the final mapping relationship, and turning to step (6); (6) performing interpolation on each node or unit in the target area according to a preset interpolation method.

Description

technical field [0001] The invention belongs to the technical field of aerospace product digital design and multi-physical field coupling simulation, and in particular relates to a method for heterogeneous grid interface data mapping. Background technique [0002] The analysis process of fluid-solid coupling can generally be described as: under the action of the flow field (such as wind, water flow, etc.), the structure, especially the flexible structure (such as long-span, towering, membrane structure, etc.) will produce large deformation and vibration, so It will have a great impact on the surrounding flow field, and the change of the flow field will further change the pressure acting on the surface of the structure, thus forming the mutual coupling between the fluid and the structure. [0003] Fluid-solid coupling simulation simulates the interaction between the flow field and the structural field through numerical simulation techniques. After the fluid domain and solid ...

AI Technical Summary

Problems solved by technology

At present, there are coupled data transfer algorithms in the field. In colleges and universities, the overall interpolation method is mainly used to process multi-field data, but the construction of interpolation functions requires human experience and the application in engineering needs continuous verification, while coupling simulation software mostly uses simple interface data. processing method, cannot guarantee higher accuracy

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