165 citations · 1.1k across the 19 of their papers we have counts for
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Roughness effects in turbulent forced convection
M. MacDonald, N. Hutchins, D. Chung
We conducted direct numerical simulations (DNSs) of turbulent flow over three-dimensional sinusoidal roughness in a channel. A passive scalar is present in the flow with Prandtl nu…
Direct numerical simulations of Taylor--Couette turbulence: the effect of sand grain roughness
Pieter Berghout, Xiaojue Zhu, Daniel Chung +3
Progress in roughness research, mapping any given roughness geometry to its fluid dynamic behaviour, has been hampered by the lack of accurate and direct measurements of skin-frict…
Bulk scaling in wall-bounded and homogeneous vertical natural convection
Chong Shen Ng, Andrew Ooi, Detlef Lohse +1
Previous numerical studies on homogeneous Rayleigh-Bénard convection, which is Rayleigh-Bénard convection (RBC) without walls, and therefore without boundary layers, have revealed…
Changes in the boundary-layer structure at the edge of the ultimate regime in vertical natural convection
Chong Shen Ng, Andrew Ooi, Detlef Lohse +1
In thermal convection for very large Rayleigh numbers (), the thermal and viscous boundary layers (BL) undergo a transition from a classical state to an ultimate state. In the…
Vertical natural convection: application of the unifying theory of thermal convection
Chong Shen Ng, Andrew Ooi, Detlef Lohse +1
Results from direct numerical simulations of vertical natural convection at Rayleigh numbers - and Prandtl number support a generalised appl…
Transition to ultimate Rayleigh-Bénard turbulence revealed through extended self similarity scaling analysis of the temperature structure functions
Dominik Krug, Xiaojue Zhu, Daniel Chung +3
In turbulent Rayleigh-Bénard (RB) convection, a transition to the so-called ultimate regime, in which the boundary layers (BL) are of turbulent type, has been postulated. Indeed, a…