A processing method for inner boundary of mother block in non-partition direction

Abstract

The present invention is applicable to the technical field of CFD simulation, and provides a method for processing the inner boundary of a mother block in a non-partition direction, wherein, the partition object is the mother block, and after the mother block is partitioned, the first sub-block and the second sub-block are formed. Two sub-blocks, comprising the steps of: judging the position of the inner boundary on the non-partition direction; when the inner boundary on the non-partition direction is located on the first sub-block, projecting the inner boundary on the non-partition direction to the first sub-block When the inner boundary in the non-partition direction is on the second sub-block, project the inner boundary in the non-partition direction onto the second sub-block; project the first section of the inner boundary onto the first sub-block, and project the inner The second segment of the boundary is projected onto the second sub-block. In the present invention, it can be automatically judged whether the inner boundary in the non-partition direction is located only on the first sub-block, only on the second sub-block, or on both the first sub-block and the second sub-block. , so it can be projected according to the actual situation.

Description

technical field [0001] The invention belongs to the technical field of CFD simulation, and in particular relates to a method for processing the inner boundary of a parent block in a non-partition direction. Background technique [0002] CFD is one of the three major means of studying aerodynamic problems such as aircraft and missiles in addition to wind tunnel tests and flight tests. With the significant improvement of CFD software and computer hardware capabilities, it will gradually replace or partially replace wind tunnels. Trends in testing, flight testing. Due to the limited capability of single-core computer processors, it is difficult to carry out large-scale CFD numerical simulations with tens of millions of grids. Therefore, CFD parallel numerical simulations have become an inevitable choice. CFD parallel numerical simulation assigns simulation tasks to multiple processes, and each process cooperates to complete the CFD numerical simulation work. Theoretically, as...

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Problems solved by technology

However, when the required number of structural grid blocks is large, for example, when tens of thousands or even hundreds of thousands of processes are used to carry out CFD parallel simulation, since the number of grid blocks must exceed the number of processes, the above-mentioned commercial software is used to analyze the structural network. Grid partitioning is very difficult, or even impossible

[0005] However, during partition processing, there is no relevant prior art on the processing of the inner boundary of the parent block in the non-partition direction.

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