Large eddy simulations are performed to analyze the conjugate heat transfer of turbulent flow in a ribbed channel with heat-conducting solid wall. An immersed boundary method (IBM) is used determine effect region on that fluid unitary computational domain. To satisfy continuity flux at solid–fluid interface, effective conductivity introduced. By applying IBM, it possible fully couple convection...

the present paper deals with the prediction of three-dimensional fluid flow and heat transfer in rib-roughened ducts of square cross-section. such flows are of direct relevance to the internal cooling system of modern gas turbine blades. the main objective is to assess how a recently developed variant of a cubic non-linear model (proposed by craft et al. (1999)), that has been shown to produce ...

Abstract To explore the optimization seismic design of frame-multi-ribbed composite wall structure, firstly finite element model a six story structure is established based on software SAP2000. Secondly critical parameters multi under action are analysised using analysis software. Finally response different rib combinations and optimal arrangement rule studied. The results reveals that lateral s...

We demonstrate how phyllotaxis (the arrangement of leaves on plants) and the ribbed, hexagonal, or parallelogram planforms on plants can be understood as the energy-minimizing buckling pattern of a compressed sheet (the plant's tunica) on an elastic foundation. The key idea is that the elastic energy is minimized by configurations consisting of special triads of periodic deformations. We study ...

Flow characteristics and heat transfer performances of carboxymethyl cellulose (CMC) aqueous solutions in the microchannels with flow control structures were investigated in this study. The researches were carried out with various flow rates and concentrations of the CMC aqueous solutions. The results reveal that the pin-finned microchannel has the most uniform temperature distribution on the s...

Abstract. This paper presents a part from one broader research project on ribbed vaults. The main goal is to generate parametric objects library for vaults, suitable both HBIM system, structural analysis or Cultural Heritage dissemination. Starting Treatises study we have analyzed different classification system and terminology used vaults components in languages, especially English, French, Sp...