This paper presents an accurate interface-capturing method based on CIVA/VOF method for the analysis of free surface flows. The incompressible Navier-Stokes equation and the advection equation is employed for the basic equations. The stabilized FEM based on the SUPG/PSPG method is employed in order to solve the velocity and the pressure. The CIVA method is employed to solve the position of the interface accurately. A new volume correction method is also presented. The present method is applied to the two dimensional broken-dam problem and three dimensional sloshing problem. The computed results show the validity and efficiency of the present method.
Treatment of 1-(4 -methoxy or ethoxy phenyl)-4,4,4-trifluoro-1,3-butanedione with europium (III) chloride in the presence of piperidine resulted in the halide ligands exchange yielded new piperidinium tetrakis{1-(4 -methoxy or ethoxy phenyl)-4,4,4-trifluoro-1,3-butanedionato} europate (III) complexes 2a and 2b. Complexes 2a and 2b have been characterized by elemental analysis, 1 H NMR spectroscopy, and FAB-MS, and their absolute structures were determined by single crystal X-ray diffraction analysis. The complexes 2a and 2b have the monoclinic space groups C2/c (No. 15, 4 -substituent = OCH 3 ) and with P − 1 (No. 2, 4 -substituent = OC 2 H 5 ), respectively. X-ray analysis results showed that eight coordinate structures of the complexes 2a and 2b have cone-like structures, like calix [4]arenes, but their structures were slightly different due to the crystal packing and the existence of the solvent molecule. The complexes 2a and 2b exhibited identical, strong photoluminescence emissions in the solution phase.
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