The unsteady flow features of a series of two-dimensional, planar base flows are examined, within a range of low-supersonic Mach numbers in order to gain a better understanding of the effects of compressibility on the organized global dynamics. Particle image velocimetry is used as the primary diagnostic tool in order to characterize the instantaneous near wake behavior, in combination with dat...

The ultrasonic velocity, density and viscosity of some Schiff bases of 4-amino benzoic acid  were measured in 1,4-dioxane and dimethylformamide at 308.15 K. Various acoustical properties such as isentropic compressibility (ks), Rao’s molar sound function (Rm), the Van der Waals constant (b), molar compressibility (W), inter molecular free len...

The crystal structure of a copper squarate metal-organic framework is fully determined using first principles methods based in density functional theory. compressibility this material studied by optimizing the under different isotropic pressures and uniaxial stresses directed along direction minimum compressibility, [1 0 0]. Under compression, channels become wider 0], leading to negative linea...