@Article{CiCP-28-1133, author = {Wu , TongYang , ZixuanWang , Shizhao and He , Guowei}, title = {A Novel Strong-Coupling Pseudo-Spectral Method for Numerical Studies of Two-Layer Turbulent Channel Flows}, journal = {Communications in Computational Physics}, year = {2020}, volume = {28}, number = {3}, pages = {1133--1146}, abstract = {

A new method is proposed to simulate a coupled air-water two-layer turbulent channel flow. A numerically effective dynamic viscosity is implemented to calculate the viscous momentum flux at the interface, leading to a strong-coupling scheme for the evolution of air and water motions. The direct numerical simulation results are compared with those in the literature obtained from a weak-coupling scheme. It is discovered that while the turbulence statistics of the air phase based on the strong- and weak-coupling schemes are close to each other, the results on the water side are influenced by the coupling approach, especially near the water surface.

}, issn = {1991-7120}, doi = {https://doi.org/10.4208/cicp.OA-2019-0124}, url = {http://global-sci.org/intro/article_detail/cicp/17678.html} }