导师风采 Supervisor's Information

清华大学航天航空学院教授，流体力学研究所所长，院长聘教授委员会主席，学术委员会委员，学位评定分委员会委员

（1）2006-10至现在, 清华大学, 航天航空学院, 教授

（2）1999-10至2000-4, 日本东京大学, 航空宇航工程系, 特别研究员

（3） 1997-10至2006-10, 清华大学, 航天航空学院, 副教授

（4） 1993-1至1997-10, 清华大学, 航天航空学院, 讲师

（5）1995-10至1997-4, 日本东京大学, 博士后, 导师: 梶昭次郎

研究生“高等计算流体力学”，64学时

本科生“计算流体力学基础”，32学时

  计算流体力学高精度格式—结构网格高精度格式，色散和耗散优化及控制，新型非线性格式，非结构网格紧致高精度算法，激波捕捉限制器，激波数值不稳定性。重要流体力学问题数值模拟—隐式大涡模拟的机理，多物质界面失稳及湍流混合，边界层减阻控制，飞行器动导数计算，叶轮机械非定常流动。

（1）国家自然科学基金委员会, 重大研究计划重点项目，隐式大涡模拟的理论基础、优化算法和应用，2022.1-2025.12，390万。

（2）国家数值风洞基础研究重点项目，非结构网格高阶精度有限体积方法研究，2019-06 至2021-12，180万。

（3）国家自然科学基金委员会, 重大研究计划培育项目, 91752114,基于湍流结构分辨的非结构网格高精度自适应算法及其应用, 2018-01 至2020-12, 96万元。

（4）国家自然科学基金委员会, 面上项目, 11672160, 变分重构非结构网格高精度有限体积方法研究，2017-01 至2020-12, 80万元。

（5）科技部，国家重点研发计划，子课题（属于课题2016YFA0401200），基于扰动演化精确刻画的边界层转捩预测方法，2016-06 至2021-06, 90万元, 结题, 主持。

（1）为了解决高精度有限体积方法的大模板问题，提出了“操作紧致性”的概念，使得发展紧致模板高精度有限体积方法成为可能，并提出了四种具体算法；紧致最小二乘法（JCP2016，ab），紧致子网格法（JCP2017，a），变分重构法（JCP2017，b），多步重构法（JCP2019）。为了解决激波捕捉问题，提出了激波捕捉的保精度限制器WBAP （JCP2011，2012，2020，CAF2014）。

（2）证明了半离散格式色散、耗散独立可控的充分条件，提出了“尺度识别器”，发现了通过非线性因素显著提高高精度有限差分方法分辨率和鲁棒性的新途径，对于高效开展DNS，LES计算有重要意义：提出了色散最小、耗散可控的MDCD格式（JCP2011，2014；JSC2015，2017）；引入了尺度识别器，提出了色散最小、耗散自适应的MDAD格式（JCP2022）；通过非线性因素，提出了新型非线性差分格式，实现色散、耗散可设计，显著提高分辨率和鲁棒性。

（3）开发了计算压气机多级非定常流动的算法及软件，提出了计算压气机损失的新的参数；开发了模拟高超声速复杂非定常流动的计算程序，并应用于飞行器气动力、热预测和湍流边界层减阻控制；提出了基于敏感性方程的飞行器动导数计算方法，可计算任意动导数，并可预测流场结构对动稳定性的影响；提出了基于智能柔性蒙皮、智能凹坑的可压缩流动减阻控制方案，实现了最高15%的减阻率。

●  Li, Y., Chen, C., & Ren, Y. (2022). A class of high-order finite difference schemes with minimized dispersion and adaptive dissipation for solving compressible flows. J. Comput. Phys., 448, 110770.

●  Huang, Q., Ren, Y., & Wang, Q. (2021). High Order Finite Volume Schemes for Solving the Non-Conservative Convection Equations on the Unstructured Grids. J. Sci. Comput., 88, 37.

●  Ren, Y., Tan, L., & Wu, Z. (2020). The shape of incident shock wave in steady axisymmetric conical Mach reflection. Advances in Aerodynamics, 2, 1-11.

●  Wang, Q., Deiterding, R., Pan, J., & Ren, Y. (2020). Consistent high resolution interface-capturing finite volume method for compressible multi-material flows. Computers & Fluids, 202, 104518.

●  Li, W., Wang, Q., & Ren, Y. (2020). A p-weighted limiter for the discontinuous Galerkin method on one-dimensional and two-dimensional triangular grids. J. Comput. Phys., 407, 109246.

●  Li, Xue-Li, and Yu-Xin Ren. High Order Compact Generalized Finite Difference Methods for Solving Inviscid Compressible Flows. Journal of Scientific Computing 82.1 (2020): 1-38.

●  Guo, Chenxi, and Yu-xin Ren. The computation of the pitch damping stability derivatives of supersonic blunt cones using unsteady sensitivity equations. Advances in Aerodynamics 1.1 (2019): 1-16.

●  ZHANG, Yu-Si; REN, Yu-Xin; WANG, Qian. Compact high order finite volume method on unstructured grids IV: Explicit multi-step reconstruction schemes on compact stencil. Journal of Computational Physics, 2019, 396: 161-192.

●  LI, Xue-Li; REN, Yu-Xin; LI, Wanai. Construction of the High Order Accurate Generalized Finite Difference Schemes for Inviscid Compressible Flows. Communications in Computational Physics, 2019, 25.2: 481-507.

●  Zeng, W. G., Pan, J. H., Ren, Y. X., & Sun, Y. T. (2018). Numerical study on the turbulent mixing of planar shock-accelerated triangular heavy gases interface. Acta Mechanica Sinica, 34(5), 855-870.

●  Jianhua, P. A. N., Qian, W. A. N. G., Zhang, Y., & Yuxin, R. E. N. (2018). High-order compact finite volume methods on unstructured grids with adaptive mesh refinement for solving inviscid and viscous flows. Chinese Journal of Aeronautics, 31(9), 1829-1841.

●  Chen, Z., Huang, X., Ren, Y. X., Xie, Z., & Zhou, M. (2018). Mechanism-Derived Shock Instability Elimination for Riemann-Solver-Based Shock-Capturing Scheme. AIAA Journal, 56(9), 3652-3666.

●  Chen, Z., Huang, X., Ren, Y. X., Xie, Z., & Zhou, M. (2018). Mechanism Study of Shock Instability in Riemann-Solver-Based Shock-Capturing Scheme. AIAA Journal, 56(9), 3636-3651.

●  LI, Wanai; PAN, Jianhua; REN, Yu-Xin. The discontinuous Galerkin spectral element methods for compressible flows on two-dimensional mixed grids. Journal of Computational Physics, 2018, 364: 314-346.

●  ZENG, Wei-Gang, et al. Turbulent mixing and energy transfer of reshocked heavy gas curtain. Physics of Fluids, 2018, 30.6: 064106.

●  HUANG, Wen-Feng, et al. High Resolution Finite Volume Scheme Based on the Quintic Spline Reconstruction on Non-uniform Grids. Journal of Scientific Computing, 2018, 74.3: 1816-1852.

●  HUANG, Wen-Feng; REN, Yu-Xin; JIANG, Xiong. A simple algorithm to improve the performance of the WENO scheme on non-uniform grids. Acta Mechanica Sinica, 2018, 34.1: 37-47.

●  Zhu, Y., Sun, Z., Ren, Y., Hu, Y., & Zhang, S. (2017). A numerical strategy for freestream preservation of the high order weighted essentially non-oscillatory schemes on stationary curvilinear grids. Journal of Scientific Computing, 72(3), 1021-1048.

●  PAN, Jianhua; REN, Yu-xin; SUN, Yutao. High order sub-cell finite volume schemes for solving hyperbolic conservation laws II: Extension to two-dimensional systems on unstructured grids. Journal of Computational Physics, 2017, 338: 165-198.

●  PAN, JianHua; REN, YuXin. High order sub-cell finite volume schemes for solving hyperbolic conservation laws I: basic formulation and one-dimensional analysis. SCIENCE CHINA Physics, Mechanics & Astronomy, 2017, 60.8: 084711.

●  WANG, Qian, et al. Compact high order finite volume method on unstructured grids III: Variational reconstruction. Journal of Computational physics, 2017, 337: 1-26.

●  Chen, Z., Huang, X., Ren, Y. X., & Zhou, M. (2017). General procedure for Riemann solver to eliminate carbuncle and shock instability. AIAA Journal, 55(6), 2002-2015.

●  WANG, Qian; REN, Yu-Xin; LI, Wanai. Compact high order finite volume method on unstructured grids II: Extension to two-dimensional Euler equations. Journal of Computational Physics, 2016, 314: 883-908.

●  WANG, Qian; REN, Yu-Xin; LI, Wanai. Compact high order finite volume method on unstructured grids I: Basic formulations and one-dimensional schemes. Journal of Computational Physics, 2016, 314: 863-882.

●  SUN, Yutao, et al. A cell-centered Lagrangian method based on local evolution Galerkin scheme for two-dimensional compressible flows. Computers & Fluids, 2016, 128: 65-76.

●  SUN, Zhen-sheng, et al. High order boundary conditions for high order finite difference schemes on curvilinear coordinates solving compressible flows. Journal of Scientific Computing, 2015, 65.2: 790-820.

●  WANG, Qiuju; REN, Yu-Xin. An accurate and robust finite volume scheme based on the spline interpolation for solving the Euler and Navier–Stokes equations on non-uniform curvilinear grids. Journal of Computational Physics, 2015, 284: 648-667.

●  Z.S. Sun, L. Luo, Y.X. Ren, S.Y. Zhang, A sixth order hybrid finite difference scheme based on the minimized dispersion and controllable dissipation technique, Journal of Computational Physics, Volume 270, No.1(2014)

●  W.A. Li, Y.X. Ren, The multi-dimensional limiters for discontinuous Galerkin method on unstructured grids, Computers & Fluids, Volume 96, 13 ,Pages 368–376 (2014)

●  Q.J. Wang, Y.X. Ren, Z.S. Sun, Y.T. Sun, Low dispersion finite volume scheme based on reconstruction with minimized dispersion and controllable dissipation, Scinence in China, Physics, Mechanics & Astronomy, Vol.56 No.2: 423–431 (2013)

●  W.A. Li, Y.-X. Ren, High order k-exact WENO finite volume schemes for solving gas dynamic Euler equations on unstructured grids, DOI:10.1002/fld.2710, Int. J. Numer. Meth. Fluids.(2012)

●  W.A Li, Y.X. Ren， The multi-dimensional limiters for solving hyperbolic conservation laws on unstructured grids II: Extension to high order finite volume schemes，J. Comput. Phys., 231:  4053–4077 (2012)

●  Li, WA, Ren, YX, Lei, GD, Luo, H, The multi-dimensional limiters for solving hyperbolic conservation laws on unstructured grids, J. Comput. Phys.  Vol. 230, 7775–7795, (2011)

●  Sun, ZS ,  Ren, YX , Larricq, C , Zhang, SY , Yang, YC , A class of finite difference schemes with low dispersion and controllable dissipation for DNS of compressible turbulence, J. Comput. Phys.  Vol.230 No.12, 4616-4635, (2011)

●  Sun, ZS , Ren, YX ,  Zhang, SY , Yang, YC , High-resolution finite difference schemes using curvilinear coordinate grids for DNS of compressible turbulent flow over wavy walls, Computers & Fluids  Vol.45   No.1 SI, 84-91, (2011)

●  Sun, ZS, Ren, YX , Larricq, C , Drag reduction of compressible wall turbulence with active dimples, Science China-Physics Mechanics & Astronomy  Vol.54   No. 2,   329-337, (2011)

●   Lei, GD ,  Ren, YX,   Computation of the stability derivatives via CFD and the sensitivity equations, Acta Mechanica Sinica  Vol. 27   No. 2, 179-188, (2011)

2006年力学学会青年科技奖

2011年中国华能集团公司科技进步2等奖

      目前任中国空气动力学学会监事长，空气动力学学报副主编，Advances in Aerodynamics副主编，国家数值风洞重大示范项目副总设计师，国际计算流体力学大会科学委员会委员，中国大百科全书力学卷编委，力学名词审定工作委员会副主任、中国工业与应用数学学会数学力学专委会委员等。曾任中国空气动力学学会副理事长， Computers & Fluids中国区编辑，力学学会流体力学专委会委员、CFD专业组组长等。