| 倒置喷管的湍流流场计算 |
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| 引用本文： | 毛根旺,林玮.倒置喷管的湍流流场计算[J].航空学报,1996,17(4):431-434. |
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| 作者姓名： | 毛根旺 林玮 |
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| 作者单位： | 西北工业大学航天工程学院,西安,710072 |
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| 摘 要： | 数值模拟采用基于 Van Leer的矢通量分裂格式 ;应用线 Gauss- Seidel迭代法求解 ;并结合局部时间步长技术对收敛过程加速。对 Re=1 .66× 1 0 6 的倒置喷管流场进行数值计算的结果与实验符合
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| 收稿时间： | 1994-06-29; |
| 修稿时间： | 1995-03-21 |
SIMULATION OF TURBULENT FLOW IN A FORWARD NOZZLE |
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| Mao Genwang,Lin Wei.SIMULATION OF TURBULENT FLOW IN A FORWARD NOZZLE[J].Acta Aeronautica et Astronautica Sinica,1996,17(4):431-434. |
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| Authors: | Mao Genwang Lin Wei |
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| Institution: | College of Astronautics, Northwestern Polytechnical University,Xi’an,710072 |
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| Abstract: | The thin layer N S equations and Baldwin Lomax algebraic turbulence model are used to calculate the transonic turbulent flow in a forward nozzle. The numerical algorithm is based on the implicit finite volume form of Van Leer flux vector splitting schemes in generalized coordinates. A line Gauss Seidel relaxation is used to invert the coefficient matrix by alternating sweep, and the local time stepping is implemented to accelerate the convergence rate of steady problems. A flow field with the Reynolds number of 1 66×10 6 is simulated, and the results are consistent with the experimental data. |
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| Keywords: | upwind schemes flux vector splitting finite element method nozzle efficiency |
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