Abstract Energy dissipation is one of the important issues in piano key weirs (PKWs). Excessive energy at weir's toe can cause scouring. In previous studies, arced (APKWs) has not been investigated. this experimental study, effect weir height as well and arrangement baffles located on outlet slope amount dissipated were examined trapezoidal (TPKWs) APKWs. Experiments performed models with two t...

A numerical simulation of a turbulent flow water in three shell and tube heat exchangers equipped with 6, 8, 10 segmental baffles as the working fluid at Reynolds numbers ranging from 24327, 33356, 42569 are performed. The conservation equations mass, momentum energy solved by finite volume method based on SIMPLE algorithm for coupling velocity-pressure, mathematical model k-ε within Fluent sof...

Combustion instability caused by the amplification of sound waves is called acoustic or high-frequency instability, which can cause severe damage to system. Adding baffles one methods passive control. Depending on geometry chamber and type application, different are used. In this research, effect longitudinal corrugated baffle characteristics combustion investigated numerically. The quality eac...

Turbulent flow in complex geometries receives considerable attention due to its importance in many engineering applications. It has been the subject of interest for many researchers. Some of these interests include the design of storm water channels. The design of these channels requires testing through physical models. The main practical limitation of physical models is the so called “scale ef...

This paper's numerical study, which applies the finite volume approach and SIMPLE algorithm, aims to dynamically analyze airflow through a channel with Z-obstacles. Three distinct models were used place Z-barriers inside channel. According Demartini et al.'s model (2004) as depicted in example A from present analysis, first Z-barrier (fin) is attached top wall (heated) second (baffle) bottom (i...

Abstract The instabilities of fluid in the liquid metal battery (LMB) can easily cause a short circuit and lead to safety accidents, which have become bottleneck LMB industrial applications. In this case, structure named grid-structure (GS) based on inner cavity has been used suppress instabilities. Based OpenFOAM-4 x numerical simulation, we analyzed critical electric potential basic structure...

Chemical looping combustion of biomass is a promising carbon capture technology due to its inherent CO2 separation advantage. However, complete fuel conversion, particularly volatiles conversion for biomass, usually not achieved in the reactor. A novel concept named distributor (VD) has been proposed and tested cold-flow fluidized-bed, which shows good potential achieve more uniform horizontal ...