The far-infrared laser electric resonance spectra of the prototypical atom-diatom complex ArH3%Z1 are analyzed using improved zero-field molecular constants, yielding accurate permanent and transition dipole moments for the three lowest excited van der Waals vibrational states. The constants are obtained from a multistate fit to previous microwave, far-infrared laser electric resonance, and far...

The paper considers a two-dimensional flow in channel, which consists of straight inlet and outlet branches circularly 90-degree curved bend. An incompressible viscous fluid flows through the elbow under action constant pressure gradient between outlet. Navier-Stokes equations were solved numerically using high-fidelity spectral/hp element method. In range Reynolds numbers, an adaptive selectiv...

Abstract Liquid oxygen supply pipeline is a key part of liquid kerosene engine test system. If leakage occurs, it will cause flow measurement error and affect the accuracy data. Therefore, in design pipeline, fluid solid thermal coupling simulation analysis method used to analyze stress “Z” bend, vessel bottom elbow balance device process ultra-low temperature flow, optimal laying scheme bend r...

in river meandering, when flow passes through a bend, reduction of flow velocity and rising hydrostatic pressure cause super elevation phenomena at outer side and reduction of water surface at inner-side of the bend. a helical motion results, causing erosion of the outer side of the bend. installation of submerged vanes on the stream bed can reduce erosion of the outer bank significantly. in th...

A numerical study, using the volume-of-fluid method (VOF), has been made of core-annular flow in a curved pipe. We investigated two cases: core-annular flow in a 90◦ bend and in a 180◦ return bend. To verify our numerical method we first compared our results for a singlephase flow in a 90◦ bend with numerical results and experimental data given in the literature. The agreement was good. Thereaf...