Abstract
In this study, nanofluid flow inside a triangular channel in the presence of a magnetic field with two phase model was analyzed. For this purpose, the external surface of the channel is heated or cooled with a specific heat transfer coefficient, and the effect of the changes in the Nusselt number as well as the pressure drop for variable parameters such as nanoparticle concentrations, magnetic field strength, and channel shape (relative to the circular mode) was investigated. In order to the Grid Independent Study, the Nusselt number for different sizes of grid has been evaluated. As a result, comparing the Nusselt number changes, the average is seen by changing the size of the networking. A grading with the number of 350,000 elements is suitable for simulating the corresponding problem. In order to confirm the validity of the results, simulation of Nusselt number changes during the channel was evaluated and compared with the results presented by Saeed et al. [23]. The error rate between the data presented in reference [23] and the simulation claims is not tangible, and therefore the model used for simulation has been approved. In this study, a triangular channel with a flow inside it is a nanofluid, is analyzed in the presence of a magnetic field in a smooth, completely two phases. For this purpose, the external surface of the channel with a certain heat transfer coefficient and the effect of changes in the thermal and fluid parameters with the change in the parameters involved in the problem have been observed. The results show that with increasing magnetic field, friction coefficient, in-channel velocity, heat transfer rate, average Nusselt number increase. In this study, for simulation we used computational fluid dynamics and limited volume method, and specifically using the Ansys-Fluent version 17 software. The problem is investigated in the form of a three dimensional, stable, single-phase and two-phase flow.
Highlights
Heat transfer in channels with non-circular surfaces is used in various industries such as automotive, power generation, heating and air conditioning, chemical engineering, electronic chip cooling, space science, etc.For this reason, many studies have been conducted to increase the level of heat transfer in channels with non-circular cross-section
Many studies have been conducted to increase the level of heat transfer in channels with non-circular cross-section
In order to grid independent Study, the average Nusselt for different grid sizes is given in Table (2)
Summary
Heat transfer in channels with non-circular surfaces is used in various industries such as automotive, power generation, heating and air conditioning, chemical engineering, electronic chip cooling, space science, etc. Numerical Study of the Heat Transfer Rate of Nano-fluid Flow in a Channel with a Triangular Cross-section in the Presence of a Magnetic Field on heat transfer using a single-phase and two-phase model using simulated flow in a triangular duct. Heris et al [15] studied the slow forced flow of Al2O3 nanoparticle and water inside the tube with constant wall temperature in a laboratory and numerical manner Their results indicate an increase in the convection coefficient by increasing the volume fractions. In 2004, Ding and colleagues [16] examined the slow flow of Al2O3 nanofluid and water in a laboratory in the inlet and outlet area, and observed a significant increase in the heat transfer coefficient in two regions They showed that with increasing Reynolds number of flow and volume fraction of nanoparticles, the Nusselt number increases. They showed that in the volume fraction and pH, there is a known Reynolds number for increasing the heat transfer coefficient
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
