Commenced in January 2007
Paper Count: 31100
Direct Numerical Simulation of Oxygen Transfer at the Air-Water Interface in a Convective Flow Environment and Comparison to Experiments
Authors: B. Kubrak J. Wissink H. Herlina
Abstract:Two-dimensional Direct Numerical Simulation (DNS) of high Schmidt number mass transfer in a convective flow environment (Rayleigh-B'enard) is carried out and results are compared to experimental data. A fourth-order accurate WENO-scheme has been used for scalar transport in order to aim for a high accuracy in areas of high concentration gradients. It was found that the typical spatial distance between downward plumes of cold high concentration water and the eddy size are in good agreement with experiments using a combined PIV-LIF technique for simultaneous and spatially synoptic measurements of 2D velocity and concentration fields.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1333614Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1086
 Herlina, Gas Transfer at the Air-Water Interface in a Turbulent Flow Environment, Universit┬¿atsverlag Karlsruhe, ISBN 3-937300-74-0, 2005.
 X. Liu, S. Osher and T. Chan, Weighted Essentially Nonoscillatory Schemes, Journal of Computational Physics 115, 200-212, 1994.
 C-W. Shu and S. Osher, Efficient Implementation of Essentially Non-oscillatory Shock-Capturing Schemes, Journal of Computational Physics 77, 439-471, 1988.
 W.-M. Vaughan and G. Weber, Oxygen quenching of pyrenebutyric acid fluorescence in water, a dynamic probe of the microenvironment. ,Biochemistry 9, 464-473, 1970.
 T. Muensterer and B. Jaehne, LIF measurement of concentration profiles in the aqueous mass boundary layer, Experiments in Fluids 25, 190-196, 1998.
 J.G. Wissink, On unconditional conservation of kinetic energy by finite-difference discretizations of the linear and non-linear convection equation, Computers and Fluids, Vol. 33, No 2, 315-343, 2004.
 G.H. Jirka, H. Herlina and A. Niepelt, Gas transfer at the airwater interface: experiments with different turbulence forcing mechanisms, Experiments in Fluids, Vol. 49, No. 1, 319-327, 2010.