Natural Convection of Nanofluids Using Jang and Choi's Model for Effective Thermal Conductivity and Various Models for Effective Viscosity

Jang and Choi's Model과 다양한 점성계수 모텔을 이용한 나노유체에서의 자연대류 특성

In this paper, the thermal characteristics of natural convection in a rectangular cavity with nanofluids such as water-based nanofluids containing alumina are theoretically investigated with a new model of the thermal conductivity for nanofluids presented by Jang and Choi and various models for effective viscosity. In addition, based on theoretical results, the effects of various parameters such as the volume fraction, the temperature, and the size of nanoparticles on free convective instability and heat transfer characteristics in a rectangular cavity with nanofluids are suggested.