Abstract
In a turbulent flow, coherent vortices are generally characterized by a high vorticity modulus and a low pressure. It was shown by Métais and Lesieur [15] that the pressure probability distribution function (pdf) was skewed in isotropic turbulence, with an exponential tail in the lows and a Gaussian one in the highs. On the other hand, the pdf of any vorticity component is symmetric, with exponential-like tails. Analogous results were found in Direct Numerical Simulation (DNS) of a mixing layer [2], and, for the pressure, in experiments of turbulence between two counter-rotating disks [6] and in a jet.KeywordsDirect Numerical SimulationPressure FluctuationIsotropic TurbulenceTurbulent Channel FlowExponential TailThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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.
