The turbulent coherent structure of flow in open channel is a chaotic and stochastic process in nature. The coherence structure of the flow or bursting process consists of a series of eddies with a variety of different ...

Ducts are often used in reactors and heat exchangers. Using rough surfaces in ducts is recognized as an effective technique to enhance heat transfer. In this research, an entropy generation analysis is carried out for turbulent flow inside a ribbed...

In this paper, three-dimensional turbulent flow field around a complex bridge pier placed on a rough fixed bed is experimentally investigated. The complex pier foundation consists of a column, a pile cap, and a 2×4 pile group. All of the elements...

Experimental results of detailed flow measurements using an Acoustic-Doppler Velocimeter (ADV) around a complex bridge pier (CBP) are presented. The pier consists of a column, a pile cap (PC) and a 2×4 pile group. The ...

Experimental investigation of thermophysical properties and heat transfer rate of covalently functionalized MWCNT in an annular heat exchanger

In this work, a two-phase mixture model for evaluation of flow and heat transfer performance of SiO2/water nanofluids under turbulent flow was proposed by considering the heterogeneity of concentration due to crossed effect and the influences...

of concentration and Reynolds number on the convective heat transfer coefficient have been investigated at constant wall temperature boundary condition under turbulent flow regime. Consist with the results, the convective heat transfer coefficient of nanofluids...