Results 21 to 30 of about 14,788,176 (350)
A coherent structure approach for parameter estimation in Lagrangian Data Assimilation [PDF]
, 2017 We introduce a data assimilation method to estimate model parameters with observations of passive tracers by directly assimilating Lagrangian Coherent Structures. Our approach differs from the usual Lagrangian Data Assimilation approach, where parameters
J. Maclean +2 more
semanticscholar +1 more source
Experimental investigation of the effects of the turbulence on the impact force of flash flood
Frontiers in Earth Science, 2023 Flash floods cause damage to engineering structures and buildings mainly due to their huge impact force. Scientific investigation of the impact process of flash floods has significant theoretical and engineering implications in ensuring the safety of ...
Haihua Gu, Yu Lei, Yu Lei
doaj +1 more source
Educing coherent eddy structures in air curtain systems [PDF]
, 2008 The work reported here comes within a broader research program dealing with ambiance separation or confining by means of air curtains (plane air jets). The process is studied experimentally by Particle Image Velocimetry (PIV).
Pavageau, Michel, Loubière, Karine
core +1 more source
Direct Numerical Simulation of Active-Controlled Impinging Jets
Journal of Fluid Science and Technology, 2009 In order to improve the heat transfer on the wall, impinging jets are used in various industrial applications, and have been investigated experimentally and numerically so far.
Koichi TSUJIMOTO +3 more
doaj +1 more source
Analysis of Near-wall Coherent Structure of Spiral Flow in Circular Pipe Based on Large Eddy Simulation [PDF]
Journal of Applied Fluid Mechanics, 2023 Based on the large eddy simulation method, this study performed the three-dimensional transient numerical analysis of the near-wall flow field of the spiral flow in a circular pipe and applied the sub-grid model of the kinetic energy transport.
Z. Wang +5 more
doaj +1 more source
Machines, 2022 The fluid stress or flow-induced vibration of annular gap flow always has some influence on the stable working conditions of a hydraulic machine. A time-averaged analysis of flow may not have to explicitly acknowledge these factors. Accordingly, a finite-
Yiming Zhao, Yongye Li, Xiaoteng Song
doaj +1 more source
Structural Dynamics, 2017 Resonant optical excitation of apical oxygen vibrational modes in the normal state of underdoped YBa2Cu3O6+x induces a transient state with optical properties similar to those of the equilibrium superconducting state. Amongst these, a divergent imaginary
R. Mankowsky +12 more
doaj +1 more source
Engineering Applications of Computational Fluid Mechanics, 2022 The tubeless vortex reducer was used to reduce the pressure drop in a cavity with radial inflow. In previous studies, the mechanism of vortex breakdown in tubeless vortex reducers was not clear, and there was a lack of direct guidance for engineering ...
Wenjie Shen +3 more
doaj +1 more source
Self-organized complexity and Coherent Infomax from the viewpoint of Jaynes’s probability theory [PDF]
, 2012 This paper discusses concepts of self-organized complexity and the theory of Coherent Infomax in the light of Jaynes’s probability theory. Coherent Infomax, shows, in principle, how adaptively self-organized complexity can be preserved and improved by ...
Phillips, William A. +2 more
core +1 more source
Coherent structures in a turbulent environment [PDF]
Physical Review E, 2002 A systematic method is proposed for the determination of the statistical properties of a field consisting of a coherent structure interacting with turbulent linear waves. The explicit expression of the generating functional of the correlations is obtained, performing the functional integration on a neighbourhood in the function space around the soliton.
Spineanu, F., Vlad, M.
openaire +4 more sources