Abstract
AbstractThe influence of the viscosity on a wave attractor flow has been previously studied, particularly in relation to the widening of the hydrodynamical structures. In this work, we simulate an attractor flow with a peculiar bottom shape that includes an underwater hill. During the simulation, we discovered a side structure appearing beyond the wave attractor. We determined that the appearance of this structure is connected to viscosity. In this article, we consider the behavior of this newly found structure. Additionally, we discuss the challenges of energy accumulation and the estimation of the Reynolds number, which is a non-trivial problem in the context of wave attractor flows.
Publisher
Springer Science and Business Media LLC
Reference29 articles.
1. Brouzet C, Dauxois T, Ermanyuk E, Joubaud S, Kraposhin M, Sibgatullin IN (2014) Direct numerical simulation of internal gravity wave attractor in trapezoidal domain with oscillating vertical wall. Proc Institute Syst Program RAS 26(5):117–142 (in Russian with English abstract)
2. Brouzet C, Ermanyuk E, Joubaud S, Pillet G, Dauxois T (2017a) Internal wave attractors: different scenarios of instability. J Fluid Mech 811:544–568
3. Brouzet C, Ermanyuk E, Joubaud S, Sibgatullin IN, Dauxois T (2016a) Energy cascade in internal-wave attractors. Europhys Lett 113(4):44001
4. Brouzet C, Ermanyuk E, Sibgatullin IN, Dauxois T (2015) Energy cascade in internal wave attractors. In: 6th International Symposium on Bifurcations and Instabilities in Fluid Dynamics, ESPCI, Paris, pp 280
5. Brouzet C, Sibgatullin IN, Ermanyuk E, Joubaud S, Dauxois T (2017b) Scale effects in internal wave attractors. Phys Rev Fluids 2:114803