Zobrazeno 1 - 10
of 232
pro vyhledávání: '"QIN Shijie"'
Autor:
Liao, Shijun, Qin, Shijie
Turbulence has remained the greatest challenge in fluid mechanics. Especially, randomness is one of the most important characteristics of turbulence, but its origin is still an open question until now. In this paper, by means of several ingeniously d
Externí odkaz:
http://arxiv.org/abs/2410.14941
Autor:
Qin, Shijie, Liao, Shijun
Publikováno v:
Adv. Appl. Math. Mech., 15 (2023), pp. 1191-1215
The background numerical noise $\varepsilon_{0} $ is determined by the maximum of truncation error and round-off error. For a chaotic system, the numerical error $\varepsilon(t)$ grows exponentially, say, $\varepsilon(t) = \varepsilon_{0} \exp(\kappa
Externí odkaz:
http://arxiv.org/abs/2302.01284
Autor:
Qin, Shijie, Liao, Shijun
Publikováno v:
Journal of Fluid Mechanics, vol. 948, A7 (2022)
We investigate the large-scale influence of numerical noises as tiny artificial stochastic disturbances on a sustained turbulence. Using the two-dimensional (2D) turbulent Rayleigh-B\'enard (RB) convection as an example, we numerically solve the NS e
Externí odkaz:
http://arxiv.org/abs/2208.11487
Autor:
Qin, Shijie, Liao, Shijun
Publikováno v:
Journal of Fluid Mechanics, vol. 960, A15, 2023
Three-dimensional steady-state Arnold-Beltrami-Childress (ABC) flow has a chaotic Lagrangian structure, and also satisfies the Navier-Stokes (NS) equations with an external force per unit mass. It is well-known that, although trajectories of a chaoti
Externí odkaz:
http://arxiv.org/abs/2204.14056
Autor:
Li, Yanhua, Qin, Shijie, Dong, Lei, Xiao, Yunfeng, Zhang, Yanan, Hou, Yali, Qiao, Shitong, Zhang, Rong, Li, Ying, Bao, Yanmin, Zhao, Xin, Ma, Yueyun, Gao, George Fu
Publikováno v:
In eBioMedicine December 2024 110
Autor:
Qin, Shijie, Liao, Shijun
Publikováno v:
In Physica D: Nonlinear Phenomena December 2024 470 Part A
Autor:
Qin, Shijie, Niu, Yuxin, Li, Xinyue, Gregory, Andrew S., Du, Zhangliu, Zhu, Kun, Ren, Tusheng, Gao, Weida
Publikováno v:
In Soil & Tillage Research December 2024 244
Publikováno v:
In Applied Surface Science 30 November 2024 675
Autor:
Qin, Shijie, Zhang, Yanan, Li, Yanhua, Huang, Ling, Yang, Ting, Si, Jiahui, Wang, Likui, Zhao, Xin, Ma, Xiaopeng, Gao, George F.
Publikováno v:
In The Lancet Regional Health - Western Pacific November 2024 52
Autor:
Liao, Shijun, Qin, Shijie
Publikováno v:
Advances in Applied Mathematics and Mechanics, Vol. 14, No. 4, pp. 799-815 (2022)
In this paper, a new concept, i.e. ultra-chaos, is proposed for the first time. Unlike a normal-chaos, statistical properties such as the probability density functions (PDF) of an ultra-chaos are sensitive to tiny disturbances. We illustrate that ult
Externí odkaz:
http://arxiv.org/abs/2110.00143