Hiroshi Kawamura

TL;DR: In this paper, a simulation of turbulent heat transfer in a channel flow has been carried out in order to investigate the characteristics of surface heat-flux fluctuations, and the effect of large-scale structures extends even to the surface heatfluctuations, and increases with increasing Reynolds number.

TL;DR: In this article, direct numerical simulation of a fully developed turbulent channel flow was carried out at three Reynolds numbers, 180, 395, and 640, based on the friction velocity and the channel half width, in order to investigate very large-scale structures and their effects on the wall shear-stress fluctuations.

TL;DR: A series of direct numerical simulation (DNSs) of the turbulent plane Couette flow were performed with various box lengths, L x = 24h, 32h, 45h and 64h, where h is the channel height.

TL;DR: In this paper, a half-zone liquid bridge was investigated and the induced flows were categorized into several regimes mainly through the pattern of the suspended particle motion in the bridge and the surface temperature variation.

TL;DR: In this article, the relationship between the fluctuating velocity vector and the temperature fluctuation has been examined using direct numerical simulation databases of a turbulent channel flow with passive scalar transport using a constant time-averaged heat flux at each wall for h + = 180, 395, 640 and 1020 (where h is the channel halfwidth with the superscript denoting normalization by wall variables) at Prandtl number Pr = 0.71.