... al., 2014). Minichannel Corotating disks Roughness parameters Turbulence parameters Friction factor Minichannel simulation has been an active area of research for several decades, with applications in kinetic energy transport, drag prediction and heat transfer. Roughness...

.... Findings The numerical results are analyzed in terms of average Nusselt number ratio, average base temperature, friction factor ratio, pressure variation inside the channel, temperature distribution, velocity distribution inside the channel, mass flow rate distribution inside the secondary channels...

...Mehmet Sorgun; Erman Ulker Purpose The purpose of this paper is to present a new friction factor equation for practical use, including fluid temperature, pipe diameter ratio and inner pipe rotation effects. Design/methodology/approach A friction factor relationship is developed by applying...

.... Also, the changes of Nusselt number and the local friction factor are under the influence of three main factors including volume fraction of slid nanoparticles, the changes of fluid velocity parameters on the curved surface of tube and flow separation after crossing from a specified angle of fluid...

... the effect of dimple depth and dimple diameter on the target surface heat transfer and the inlet to outlet friction factor. Design/methodology/approach The study is carried out by using the numerical simulations. The impingement flow is directly impinging on the dimple and released from the film holes...

... angle on the endwall heat transfer and friction factor in this pin fin wedge duct. Design/methodology/approach – The study is carried out by using the numerical simulations. The diameter of dimples is the same as the pin fin diameter with an inline manner arrangement in relation to the pin fin...

.... S_ij:   (Equation 1) T:  temperature (K) Dr Dipti Prasad Mishra can be contacted at: diptimishraster@gmail.com © Emerald Group Publishing Limited 2015 Friction factor Finned tube Heated surface Smooth tube q:  heat flux (W/m2) Re:  Reynolds number ε:  rate...

...Herbert Keith Winning; Tim Coole Purpose – The purpose of this paper is to present an improved computational method for determining the friction factor for turbulent flow in pipes. Design/methodology/approach – Given that the absolute pipe roughness is generally constant in most systems...

...‐averaged streamwise velocity profile, turbulent kinetic energy profile, friction factor, and Nusselt number. These results agree well with experimental data in the existing literature. It is concluded from the study that the streamwise movement of the inner wall induces an attenuation in the turbulent...