@Article{CiCP-28-3, author = {Wu, Tong and Zixuan, Yang and Wang, 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 = {https://global-sci.com/article/79715/a-novel-strong-coupling-pseudo-spectral-method-for-numerical-studies-of-two-layer-turbulent-channel-flows} }