"uuid","repository link","title","author","contributor","publication year","abstract","subject topic","language","publication type","publisher","isbn","issn","patent","patent status","bibliographic note","access restriction","embargo date","faculty","department","research group","programme","project","coordinates" "uuid:b65f7860-4e9a-4cc2-ad84-0d08090b2d02","http://resolver.tudelft.nl/uuid:b65f7860-4e9a-4cc2-ad84-0d08090b2d02","Effect of viscoelasiticity on the far-dissipation range of homogeneous isotropic turbulence","Nguyen, M.Q.; Simöens, S.; Delache, A.; El Hajem, M.; Bos, W.; Poole, R.","","2015","The comparison of the results of direct numerical simulations of isotropic turbulence of Newtonian and viscoelastic fluid, based on the FENE-P model, provide evidence that viscoelasticity modifies qualitatively the behavior of the smallest scales: we observe a k−6 law in the far dissipation range of the energy spectrum and we show that it is a robust feature, roughly independent of the large-scale dynamics. It is further shown that the drag-reduction in such flows, as measured by the difference in energy dissipation between Newtonian and viscoelastic flow, strongly depends on the initial conditions.","","en","conference paper","","","","","","","","","","","","","",""