The impact of turbulence models on the simulation of residence time distribution in a multichamber ozone contactor

Peng, Shijian; Deng, Baoqing; Wu, Jiming; Xu, Liangtian

doi:10.2166/ws.2021.154

Cited by 4 publications

(1 citation statement)

References 29 publications

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“…In the fluid models created, the renormalization group (RNG) k-ε turbulence model was used. The C u , C 1ε and C 2ε values of the turbulence model are assigned as 0.0845, 1.42 and 1.68, respectively (Mabrouk et al, 2023;Pakatchian et al, 2020;Peng et al, 2021). The residual of continuity convergence criterion for the network structures was set as 10 -5 .…”

Section: Electrolyte Pressure On Blisk Blades Ecmmentioning

confidence: 99%

Investigation of electrolyte pressure effect on blisk blades during electrochemical machining

Aslan,

Kanber,

Demirtas

et al. 2024

MMMS

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PurposeThe purpose of this study is analysis of deformation and vibrations of turbine blades produced by high electrolyte pressure during electrochemical machining.Design/methodology/approachAn experimental setup was designed, experiments were conducted and the obtained results were compared with the finite element results. The deformations were measured according to various flow rates of electrolyte. In finite element calculations, the pressure distribution created by the electrolyte on the blade surface was obtained in the ANSYS® (A finite element analysis software) Fluent software and transferred to the static structural where the deformation analysis was carried out. Three different parameters were examined, namely blade thickness, blade material and electrolyte pressure on blade disk caused by mass flow rate. The deformation results were compared with the gap distances between cathode and anode.FindingsLarge deformations were obtained at the free end of the blade and the most curved part of it. The appropriate pressure values for the electrolyte to be used in the production of blisk blades were proposed numerically. It has been determined that high pressure applications are not suitable for gap distance lower than 0.5 mm.Originality/valueWhen the literature is examined, it is required that the high speed flow of the electrolyte is desired in order to remove the parts that are separated from the anode from the machining area during electrochemical machining. However, the electrolyte flowing at high speeds causes high pressure in the blisk blades, excessive deformation and vibration of the machined part, and as a result, contact of the anode with the cathode. This study provides important findings for smooth electro chemical machining at high electrolyte flows.

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Section: Electrolyte Pressure On Blisk Blades Ecmmentioning

confidence: 99%