Studying and Investigating the Development of Turbulent Flow in a Vertical Pipe Using Computational Fluid Dynamics (CFD) Method

چکیده مقاله

In this reseaches the effects of some parameters such as Reynolds number, hydraulic diameter, velocity profile of flow in pipes are considered. For this purpose, two different geometries (circle, square) with the same hydraulic length and diameter (2500*100 mm) were used through modeling and simulation in ANSYS CFX. The used meshing on pipes was completely regular and we consider water as fluid in pipe with inlet and surrounding temperature of 60 and 0 ^oC, respectively. Obtained results from some researches showed the effect of geometry on flow profile where in Reynolds number 2500, the length of developed region for circular and square cross section was 1.6 and 1.65 m, respectively and in Reynolds number 4000, is 1.8 and 1.85, respectively. With more accurate inspection, it can be realized that a higher Reynolds number results in longer developed region and this length in square cross section is more than circular cross section.

دریافت لینک دانلود مقاله