26 citations · 128 across the 12 of their papers we have counts for
5 papers · 1 filter
Development of a turbulent spot into a stripe pattern in plane Poiseuille flow
Hiroshi Aida, Takahiro Tsukahara, Yasuo Kawaguchi
A structure consisting of quasi-laminar and turbulent regions in a stripe pattern, which can be found in a transitional plane channel flow, is called `turbulent stripe'. In the pre…
Turbulent heat transfer in a channel flow at transitional Reynolds numbers
Takahiro Tsukahara, Hiroshi Kawamura
Direct numerical simulation of a turbulent channel flow with heat transfer was performed at very low Reynolds numbers. Two different thermal boundary conditions were studied, and t…
An experimental study on turbulent-stripe structure in transitional channel flow
Takahiro Tsukahara, Yasuo Kawaguchi, Hiroshi Kawamura
Turbulent stripe, which would occur in turbulent channel flows at transitional Reynolds numbers, was studied experimentally by flow visualization using reflective flake particles.…
DNS of heat transfer in a transitional channel flow accompanied by a turbulent puff-like structure
Takahiro Tsukahara, Kaoru Iwamoto, Hiroshi Kawamura +1
Direct numerical simulations of turbulent heat transfer in fully-developed channel flows have been performed in a range of friction Reynolds number between 60 and 180, based on the…
DNS of turbulent channel flow at very low Reynolds numbers
Takahiro Tsukahara, Yohji Seki, Hiroshi Kawamura +1
Direct numerical simulations (DNS) of fully-developed turbulent channel flows for very low Reynolds numbers have been performed with a larger computational box sizes than those of…