Abstract
We report direct numerical simulations ~DNS! of the two-dimensional ~2D! Navier-Stokes equation, including a linear friction term which parallels a series of recent experiments on decaying quasi-2D turbulence in thin, stably stratified, fluid layers. If we start the DNS from the experimental situation when transient processes within the layers have died away, then quantitative comparison between simulation and experiment shows a remarkable agreement for the temporal evolution of the stream function and the vorticity field. The results confirm the two dimensionality of the experimental dynamics after a short initial period of relaxation and suggest the use of 2D simulations for extrapolating the observations to the case without bottom friction, inaccessible to experiments with stratified fluids. @S1063-651X~97!07804-5# PACS number~s!: 47.27.Eq, 47.27.Jv
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
