scholarly journals Direct numerical simulations of the swirling von Kármán flow using a semi-implicit moving immersed boundary method

2021 ◽  
pp. 105132
Author(s):  
M. Houssem Kasbaoui ◽  
Tejas Kulkarni ◽  
Fabrizio Bisetti
Keyword(s):  
Numerical Simulations ◽  
Immersed Boundary Method ◽  
Direct Numerical Simulations ◽  
Immersed Boundary ◽  
Boundary Method ◽  
Von Karman ◽  
Von Kármán

Numerical simulations of three-dimensional foam by the immersed boundary method

2014 ◽  
Vol 269 ◽  
pp. 1-21 ◽  
Author(s):  
Yongsam Kim ◽  
Ming-Chih Lai ◽  
Charles S. Peskin ◽  
Yunchang Seol
Keyword(s):  
Numerical Simulations ◽  
Immersed Boundary Method ◽  
Three Dimensional ◽  
Immersed Boundary ◽  
Boundary Method

Numerical simulations of shock/obstacle interactions using an improved ghost-cell immersed boundary method

2019 ◽  
Vol 182 ◽  
pp. 128-143 ◽  
Author(s):  
Yang Zhang ◽  
Xinglong Fang ◽  
Jianfeng Zou ◽  
Xing Shi ◽  
Zhenhai Ma ◽  
...  
Keyword(s):  
Numerical Simulations ◽  
Immersed Boundary Method ◽  
Immersed Boundary ◽  
Ghost Cell ◽  
Boundary Method

scholarly journals Bedform dynamics from coupled bed-flow direct numerical simulations

2019 ◽  
Vol 261 ◽  
pp. 03001
Author(s):  
N. Zgheib ◽  
J.J. Fedele ◽  
D.C.J.D. Hoyal ◽  
M.M. Perillo ◽  
S. Balachandar
Keyword(s):  
Flow Field ◽  
Numerical Simulations ◽  
Immersed Boundary Method ◽  
Open Channel ◽  
Numerical Approach ◽  
Direct Numerical Simulations ◽  
Immersed Boundary ◽  
Sediment Bed ◽  
Turbulent Flow Field ◽  
Pseudo Spectral

We present results of time-evolving coupled direct numerical simulations between an erodible bed and an overlying pressure-driven, turbulent flow field. A total of 6 simulations are considered, the details of which are shown in Table 1. The numerical setup consists of a horizontally periodic open channel, and the simulations are run at a shear Reynolds number of Reτ = 180. The coupling between the spatially and temporally evolving sediment bed and the flow field is enforced through the explicit immersed boundary method (IBM) of Uhlmann [1]. The flow field is fully resolved and is obtained by integrating the conservation of mass and momentum equations using a pseudo spectral code [2]. On the other hand, the sediment bed is modelled via the Exner equation [3]. Details about the numerical approach are available in [4-5].

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