| 引用本文: | 王圣业,王光学,董义道,等.基于高精度加权紧致非线性格式的γ－Reθ转捩模型标定与应用.[J].国防科技大学学报,2016,38(4):14-20.[点击复制] |
| WANG Shengye,WANG Guangxue,DONG Yidao,et al.Calibration and application of γ－Reθ transition model based on high-order weighted compact nonlinear scheme[J].Journal of National University of Defense Technology,2016,38(4):14-20[点击复制] |
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| 基于高精度加权紧致非线性格式的γ－Reθ转捩模型标定与应用 |
| 王圣业1, 王光学1,2, 董义道1, 邓小刚1 |
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(1．国防科技大学 航天科学与工程学院， 湖南 长沙 410073;2.
2．中山大学 物理学院， 广东 广州 510006)
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| 摘要: |
| 为准确模拟航空工程中的转捩问题，在高精度数值风洞平台上采用低速平板试验数据对基于高精度加权紧致非线性格式的γ－Reθ转捩模型进行了标定，并在二维低速问题中进行了应用。计算结果与试验的对比表明：基于高精度加权紧致非线性格式的γ－Reθ转捩模型可准确模拟自然转捩、旁路转捩及分离转捩的位置，并且具有较低的网格敏感性；在中等雷诺数范围，层流区域和湍流区域有相同量级时，计算必须采用转捩模型才能准确模拟阻力系数。 |
| 关键词: 转捩模型 高精度格式 加权紧致非线性格式 湍流模型 |
| DOI：10.11887/j.cn.201604003 |
| 投稿日期：2016-03-01 |
| 基金项目:国防科学技术大学科研计划资助项目（ZDYYJCYJ20140101） |
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| Calibration and application of γ－Reθ transition model based on high-order weighted compact nonlinear scheme |
| WANG Shengye1, WANG Guangxue1,2, DONG Yidao1, DENG Xiaogang1 |
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(1.College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China;2.
2.School of Physics, Sun Yat-sen University, Guangzhou 510006, China)
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| Abstract: |
| In order to accurately simulate the transition in aeronautical engineering, the low speed flat plate data was adopted for the calibration of γ－Reθ transition model based on high-order WCNS (weighted compact nonlinear scheme) on the platform of high-order numerical wind tunnel. Based on the calibrated transition model, the flow over the low speed airfoil was investigated. Comparison between the calculated results and the experiment data indicates that the γ－Reθ transition model based on WCNS can predict the location of nature transition, bypass transition or separation transition very well and has low mesh sensitivity; only the transition model can calculate the drag coefficient accurately within a moderate Reynolds number range where the length of the laminar flow region is comparable to that of the turbulent flow region. |
| Keywords: transition model high-order scheme weighted compact nonlinear scheme turbulence model |
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