Flow and Heat Transfer of the Cu-Water Nanofluid in a Corrugated Channel

This paper is devoted to study the influence of the Cu-water nanofluid on a two-dimensional laminar and incompressible flow and heat transfer in a corrugated triangular-based channel filled with homogeneous mixture of water and metallic nanoparticles. The equations governing the problem were solved using the finite volume method. ANSYS 15.0 FLUENT software was used to perform the numerical simulations. These numerical simulations were carried out for different values of the Reynolds number ranging from 100 to 1000 and for metallic nanoparticles of diameter with volume fractions of and. The effect of the Reynolds number, the nature of the nanofluid on the flow field and the heat transfer were studied. Note that the obtained results are in good agreement with the results existing in the literature. Keywords: Cu-water nanofluid, Fluent, forced convection, Reynolds number, volume fraction.

COMPUTER SIMULATION OF FLOW IN CORRUGATED CHANNEL OF PLATE HEAT EXCHANGER

Statement of the problem. The heat exchange process occurring in a modified corrugated interplate channel of an intensified plate heat exchanger with an increased turbulence of the heat carrier is discussed. A computer model of the coolant movement in the speed range of 0.1--1.5 m/s is developed and the turbulence coefficient of the plate heat exchanger is determined.Results. The article presents the results of computer modeling of the coolant movement in the interplate corrugated channel of the original plate heat exchanger using the Ansys software package. The criteria of system stability are defined. 3D modeling of the channel formed by corrugated plates is performed. In the study of the process of turbulence several high-speed modes of movement of the coolant were considered. The turbulence coefficient Tu, % is determined. Conclusions. As a result of computer simulation, an increase in the heat transfer coefficient K, W/(m2 ℃) was found due to an increased turbulization of the flow, which leads to a decrease in metal consumption and a decrease in the cost of heat exchange equipment.