In this paper free convection from a horizontal isothermal elliptic tube placed in a micropolar fluid with its major axis vertical is investigated. The governing equations are based on the conservation of mass, linear momentum, angular momentum and energy. The full governing equations written in stream function-vorticity formulation are solved numerically using the Spectral method based on Four...

The distribution of soil particles and planting tube space position affects reversal cultivated land and fertilization seeder seeding performance. Through the establishment of ratary tiller system coordinate system; Firstly giving the analysis of soil grain not heel cover shell collision and the first meeting with cover shell collisions motion situation, through Matlab found the first meeting w...

The purpose of this work is investigation the distribution gas phase velocity and liquid irrigation density at outlet heat exchange tube a vertical falling film evaporator. Experimental studies hydrodynamics two-phase flow were carried out on pilot instalation. Radial distributions various distances from lower section heating are obtained. It established that high velocities contribute to turbu...