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浙江大学学报(工学版)  2018, Vol. 52 Issue (5): 996-1001    DOI: 10.3785/j.issn.1008-973X.2018.05.021
梁小龙, 乔文丽, 赵西增
浙江大学 海洋学院、浙江 舟山 316021
Direct numerical simulation of gravity current with stratified water environment
LIANG Xiao-long, QIAO Wen-li, ZHAO Xi-zeng
Ocean College, Zhejiang University, Zhoushan 316021, China
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The improved direct numerical simulations (DNS) with high-resolution numerical model was employed to simulate lock-exchange gravity current in a linearly stratified ambient fluid. The model was established in the Cartesian coordinate system, using DNS as the base solver to make material transport equation and the Navier-Stokes equation solved simultaneously. The distance function was used to smooth the initial discontinuous transport equation. The upwind compact difference scheme (UCCD) with the sixth-order accuracy was used to improve the original model and solve material transport equation more accurately. The reliability of the model was verified by solving the simulation results of the one-dimensional convection equation and the invasion gravity current. The process of mixing the sediment gravity current and linear stratification ambient fluid was studied. High-precision numerical results are obtained and internal wave generated by intrusion of gravity current is better captured.Results show that the model can accurately simulate stratification ambient fluid entrained by invasion gravity current and thefront movementlocation of turbidity currents. Sedimentation rates and energy conversion are embodied excellently.

收稿日期: 2017-05-10 出版日期: 2018-11-07
CLC:  TV142  


通讯作者: 赵西增,男,教授     E-mail:
作者简介: 梁小龙(1990-),男,硕士生,从事计算流体力学等研究
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梁小龙, 乔文丽, 赵西增. 分层环境中异重流运动问题的直接数值模拟[J]. 浙江大学学报(工学版), 2018, 52(5): 996-1001.

LIANG Xiao-long, QIAO Wen-li, ZHAO Xi-zeng. Direct numerical simulation of gravity current with stratified water environment. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2018, 52(5): 996-1001.


[1] KUBO Y. Experimental and numerical study of topo-graphic effects on deposition from two-dimensional, particle-driven density currents[J]. Sedimentary Geology, 2004, 164(3/4):311-326.
[2] VASSILIOS A. Tsihrintzis, Vahid Alavian. Spreading of three-dimensional inclined gravity plumes[J]. Journal of Hydraulic Research, 1996, 34(5):695-711.
[3] LONGO S, UNGARISH M, FEDERICO V D, et al. Gravity currents in a linearly stratified ambient fluid created by lock release and influx in semi-circular and rectangular channels[J]. Physics of Fluids, 2016, (89):96-115.
[4] CENEDESE C, ADDUCE C. Mixing in a density-driven current flowing down a slope in a rotating fluid[J]. Journal of Fluid Mechanics, 2008, 604:369-388.
[5] CENEDESE C, ADDUCE C. A New Parameterization for Entrainment in Overflows[J]. Journal of Physical Oceanography, 2010, 40(8):313-322.
[6] HALLWORTH M A, HUPPERT H E, Phillips J C, et al. Entrainment into two-dimensional and axisymmetric turbulent gravity currents[J]. Journal of Fluid Mechanics, 1996, 308:289-311.
[7] OTTOLENGHI L, ADDUCE C, INGHILESI R, et al. Entrainment and mixing in unsteady gravity currents[J]. Journal of Hydraulic Research, 2016, 54(5):1-17.
[8] 张巍,赵亮,贺治国,等.线性层结盐水中的羽流运动特性[J].水科学进展,2016,27(4):602-608. ZHANG Wei, ZHAO Liang, HE Zhi-guo, et al. Characteristics of plumes in linearly stratified salt-water[J]. Advances in Water Science, 2016, 27(4):602-608.
[9] GUO Y, ZHANG Z, SHI B. Numerical simulation of gravity current descending a slope into a linearly stratified environment[J]. Journal of Hydraulic Engineering, 2014, 140(12):1-10.
[10] PETERSON T E. Eliminating gibb's Effect from separation of variables solutions[J]. Siam Review, 1998, 40(2):324-326.
[11] NASR-AZADANI M M, MEIBURG E. Turbidity currents interacting with three-dimensional seafloor topo-graphy[J]. Journal of Fluid Mechanics, 2014, 74(52):409-443.
[12] BOLSTER D, HANG A, LINDEN P F. The front speed of intrusions into a continuously stratified medium[J]. Journal of Fluid Mechanics, 2008, 594:369-377.
[13] OSHER S, SETHIAN J A. Fronts propagating with curvature dependent speed:algorithms based on the Hamilton-Jacobi formulation[J]. Journal of Computational Physics, 1988, 79(1):12-49.
[14] JIANG G S, PENG D. Weighted ENO schemes for Hamilton-Jacobi equations[J]. Siam Journal on Scientific Computing, 2000, 21(6):2126-2143.
[15] CHU P C, FAN C. A Three-Point Combined Compact Difference Scheme[J]. Journal of Computational Physics, 1998, 140(2):370-399.
[16] CHORIN A J. Numerical solution of the Navier-Stokes equations[J]. Mathematics of Computational, 1968, 22(104):745-762.
[17] JIANG G S, SHU C W. Efficient Implementation of Weighted ENO Schemes[J]. Journal of Computational Physics, 1996, 126(1):202-228.
[18] SNOW K, SUTHERLAND B R. Particle-laden flow down a slope in uniform stratification[J]. Journal of Fluid Mechanics, 2014, 755:251-273.
[19] NASR-AZADANI M M, MEIBURG E, KNELLER B. Mixing dynamics of turbidity currents interacting with complex seafloor topography[J]. Environmental Fluid Mechanics, 2016:1-23.

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