【摘要】：針對單元網格發(fā)生變形重構中新舊網格之間的數據插值問題,提出一種基于格點格式有限體積法的流場數據傳遞方法。利用非結構動網格技術,將舊網格單元移動到新網格單元,同時時間推進求解流場控制方程,獲得移動后舊網格單元物理量,并將其賦給新網格單元,以此來實現兩套網格間的信息傳遞。計算結果表明,該方法在信息傳遞過程中沒有引入插值誤差,理論上流場求解方法的精度就是信息傳遞精度,驗證結果表明其顯著優(yōu)于二階插值精度。
[Abstract]:In order to solve the problem of data interpolation between new and old grids in element grid deformation reconstruction, a flow field data transfer method based on lattice format finite volume method is proposed. By using the unstructured dynamic grid technology, the old grid element is moved to the new grid element, and the flow field control equation is solved by time propulsion. The physical quantity of the old grid element after moving is obtained and assigned to the new grid element. In order to realize the information transmission between the two sets of grid. The calculation results show that the interpolation error is not introduced in the process of information transmission. In theory, the accuracy of the flow field solution method is the accuracy of information transmission. The verification results show that the method is significantly better than the second-order interpolation accuracy.
【作者單位】： 大連理工大學航空航天學院;
【基金】：國家自然科學基金資助項目(11272074) 遼寧省自然科學基金資助項目(201202033)
【分類號】：O35

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本文編號：2490509