Numerical study on wake galloping of tandem circular cylinders considering the effects of mass and spacing ratios
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Wind Engineering and Industrial Aerodynamics"
DOI: 10.1016/j.jweia.2021.104536
Abstract: Abstract The mass and spacing ratios of parallel circular cylinder structures change over a wide range in engineering applications. In this study, the effects of mass ratio, spacing ratio and helical wires on the wake… read more here.
Keywords: circular cylinders; galloping tandem; wake galloping; mass ... See more keywords
Three-dimensional wake transition in the flow over four square cylinders at low Reynolds numbers
Sign Up to like & getrecommendations! Published in 2020 at "AIP Advances"
DOI: 10.1063/1.5129744
Abstract: The three-dimensional characteristics of the flow past four square cylinders in an in-line square configuration, with five spacing ratios ranging from 1.4 to 5, were studied in depth in this study. Direct numerical simulation of… read more here.
Keywords: three dimensional; square cylinders; four square; low reynolds ... See more keywords
Superposition and higher-order spacing ratios in random matrix theory with application to complex systems
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.104.054204
Abstract: The joint distribution of every second eigenvalue obtained after superposing the spectra of two circular orthogonal ensembles ($\beta=1$) is known to be equal to that of the circular unitary ensemble ($\beta=2$), where the parameter $\beta$… read more here.
Keywords: order spacing; beta; higher order; distribution ... See more keywords
Approximation formula for complex spacing ratios in the Ginibre ensemble.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.105.044144
Abstract: Recently, Sá, Ribeiro, and Prosen [Phys. Rev. X 10, 021019 (2020)10.1103/PhysRevX.10.021019] introduced complex spacing ratios to analyze eigenvalue correlations in non-Hermitian systems. At present there are no analytical results for the probability distribution of these… read more here.
Keywords: complex spacing; approximation formula; formula complex; spacing ratios ... See more keywords
Universal scaling of higher-order spacing ratios in Gaussian random matrices.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.107.024132
Abstract: Higher-order spacing ratios are investigated analytically using a Wigner-like surmise for Gaussian ensembles of random matrices. For a kth order spacing ratio (r^{(k)},k>1) the matrix of dimension 2k+1 is considered. A universal scaling relation for… read more here.
Keywords: order spacing; higher order; universal scaling; random matrices ... See more keywords
Exact distribution of spacing ratios for random and localized states in quantum chaotic systems.
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review E"
DOI: 10.1103/physreve.97.062212
Abstract: Typical eigenstates of quantum systems, whose classical limit is chaotic, are well approximated as random states. Corresponding eigenvalue spectra are modeled through an appropriate ensemble described by random matrix theory. However, a small subset of… read more here.
Keywords: random localized; exact distribution; distribution spacing; spacing ratios ... See more keywords