Effects of rheological properties of surfactant solutions on energy transfer in two-dimensional turbulent flow

2020 ◽  
Vol 2020 (0) ◽  
pp. OS01-01
Author(s):  
Kengo FUKUSHIMA ◽  
Ruri HIDEMA ◽  
Hiroshi SUZUKI
Keyword(s):  
Energy Transfer ◽  
Turbulent Flow ◽  
Rheological Properties ◽  
Two Dimensional ◽  
Surfactant Solutions

An experimental investigation of MHD quasi-two-dimensional turbulent shear flows

2002 ◽  
Vol 456 ◽  
pp. 137-159 ◽  
Author(s):  
KARIM MESSADEK ◽  
RENE MOREAU
Keyword(s):  
Magnetic Field ◽  
Energy Transfer ◽  
Turbulent Flow ◽  
Shear Layer ◽  
Electric Current ◽  
Turbulent Shear ◽  
Two Dimensional ◽  
Joule Dissipation ◽  
Layer Width ◽  
Wide Range

An extensive experimental study is carried out to examine the properties of a quasi-two-dimensional MHD turbulent shear flow. Axisymmetric shear of a mercury layer is enforced by the action of a steady vertical magnetic field and a radial horizontal electric current flowing between a ring set of electrodes and a cylindrical wall. This shear layer is unstable, and the properties of the turbulent flow are studied for a wide range of Hartmann (up to 1800) and Reynolds numbers (up to 106). The mean velocity profiles exhibit a turbulent free shear layer, of thickness larger than that predicted by the laminar theory by two orders of magnitude. The profiles yield the expected linear dependence between the total angular momentum and the electric current when the magnetic field is large enough, but demonstrate a systematic deviation when it is moderate (Ha [lsim ] 250). The quasi-two-dimensional turbulence is characterized by an energy transfer towards the large scales, which leads to a relatively small number of large coherent structures. The properties of these structures result from the competition between the energy transfer and the Joule dissipation within the Hartmann layers. In the intermediate range of wavenumbers (k[lscr ] < k < ki, where k[lscr ] is the integral-length-scale wavenumber and ki the injection wavenumber), the energy spectra exhibit a power law close to k−5/3 when the Joule dissipation is weak and close to k−3 when it is significant. The properties of the turbulent flow in this latter regime depend on only one non-dimensional parameter, the ratio (Ha/Re)(l⊥/h)2 (Ha is the Hartmann number, Re the Reynolds number based on the cell radius, l⊥ a typical transverse scale, and h the layer width).

Analysis of Frost Growth through a Two-Dimensional Duct with Turbulent Flow

2008 ◽  
Vol 39 (4) ◽  
pp. 347-370
Author(s):  
M. Salmanpour ◽  
O. Nourani Zonouz ◽  
Mahmood Yaghoubi
Keyword(s):  
Turbulent Flow ◽  
Two Dimensional ◽  
Frost Growth

Theoretical models of energy transfer in two-dimensional molecular assemblies

1993 ◽  
Vol 48 (2) ◽  
pp. 1516-1528 ◽  
Author(s):  
E. A. Bartnik ◽  
J. A. Tuszyński
Keyword(s):  
Energy Transfer ◽  
Theoretical Models ◽  
Two Dimensional ◽  
Molecular Assemblies

Level set-based topology optimization for two dimensional turbulent flow using an immersed boundary method

2021 ◽  
pp. 110630
Author(s):  
Seiji Kubo ◽  
Atsushi Koguchi ◽  
Kentaro Yaji ◽  
Takayuki Yamada ◽  
Kazuhiro Izui ◽  
...  
Keyword(s):  
Topology Optimization ◽  
Turbulent Flow ◽  
Level Set ◽  
Immersed Boundary Method ◽  
Immersed Boundary ◽  
Two Dimensional ◽  
Boundary Method

scholarly journals Investigating resonance energy transfer from protein molecules to van der Waals nanosheets

RSC Advances ◽  
2017 ◽  
Vol 7 (42) ◽  
pp. 26250-26255 ◽  
Author(s):  
Arun Singh Patel ◽  
Praveen Mishra ◽  
Pawan K. Kanaujia ◽  
Syed Shariq Husain ◽  
G. Vijaya Prakash ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Bovine Serum Albumin ◽  
Serum Albumin ◽  
Bovine Serum ◽  
Van Der Waals ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Two Dimensional ◽  
Protein Molecules ◽  
2D Nanomaterials

The resonance energy transfer (RET) from tryptophan present in bovine serum albumin (BSA) to two dimensional (2D) nanomaterials has been reported.

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