The next generation of cosmological observations are expected to improve the measurements several quantities connected primordial inflation in early Universe. These include, for example, improved spectral index scalar curvature power spectrum and also bring a better understanding on scaling dependence spectrum. This includes running tilt possibly, also, running. In this paper, we investigate po...

in this research, the effect of friction between the liquid metal and the sand mould wall and the effect of passage of liquid through a vertical bend and through a ceramic filter on the fluid flow and the melt velocity has been studied by measuring the velocity of the melt and direct observation of the liquid flow through the different parts of a naturally-pressurized running system. the fricti...