23 citations · 91 across the 7 of their papers we have counts for
11 papers · 1 filter
Understanding the different scaling behavior in various shell models proposed for turbulent thermal convection
Emily S. C. Ching, H. Guo, W. C. Cheng
Different scaling behavior has been reported in various shell models proposed for turbulent thermal convection. In this paper, we show that buoyancy is not always relevant to the s…
Refined similarity hypotheses in shell models of turbulence
Emily S. C. Ching, H. Guo, T. S. Lo
A major challenge in turbulence research is to understand from first principles the origin of anomalous scaling of the velocity fluctuations in high-Reynolds-number turbulent flows…
Ultimate-state scaling in a shell model for homogeneous turbulent convection
Emily S. C. Ching, T. C. Ko
An interesting question in turbulent convection is how the heat transport depends on the strength of thermal forcing in the limit of very large thermal forcing. Kraichnan predicted…
Anomalous Scaling and Refined Similarity of an Active Scalar in a Model of Homogeneous Turbulent Convection
Emily S. C. Ching, W. C. Cheng
Anomalous scaling in the statistics of an active scalar in homogeneous turbulent convection is studied using a dynamical shell model. We extend refined similarity ideas for homogen…
Multifractality and scale invariance in human heartbeat dynamics
Emily S. C. Ching, Yue-Kin Tsang
Human heart rate is known to display complex fluctuations. Evidence of multifractality in heart rate fluctuations in healthy state has been reported [Ivanov et al., Nature {\bf 399…
Comparison of Theory and Direct Numerical Simulations of Drag Reduction by Rodlike Polymers in Turbulent Channel Flows
Roberto Benzi, Emily S. C. Ching, Elisabetta De Angelis +1
Numerical simulations of turbulent channel flows, with or without additives, are limited in the extent of the Reynolds number \Re and Deborah number \De. The comparison of such sim…