Numerical Simulation of Coexisting Solid-liquid Slag Trickle Flow in a Coke Bed by the SPH Method with a Non-Newtonian Fluid Model

Natsui, Shungo; Sawada, Akinori; Nogami, Hiroshi; Kikuchi, Tatsuya; Suzuki, Ryosuke O.

Numerical Simulation of Coexisting Solid-liquid Slag Trickle Flow in a Coke Bed by the SPH Method with a Non-Newtonian Fluid Model

Natsui, Shungo; Sawada, Akinori; Nogami, Hiroshi et al.

ISIJ international, 2020, 60(7), 1445-1452

Permalink : https://hdl.handle.net/2115/79865

このアイテムのアクセス数:555件（2026-08-17 16:20 集計）

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https://doi.org/10.2355/isijintemational.ISIJINT-2019-701			13

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アクセス権	open access
URI	https://hdl.handle.net/2115/79865
タイトル	Numerical Simulation of Coexisting Solid-liquid Slag Trickle Flow in a Coke Bed by the SPH Method with a Non-Newtonian Fluid Model
著者	Natsui, Shungo ; Sawada, Akinori ; Nogami, Hiroshi ; Kikuchi, Tatsuya ; Suzuki, Ryosuke O.
e-Rad_Researcher 70706879 著者名 Natsui, Shungo
著者名 Sawada, Akinori
著者名 Nogami, Hiroshi
e-Rad_Researcher 60374584 著者名 Kikuchi, Tatsuya
e-Rad_Researcher 80179275 著者名 Suzuki, Ryosuke O.
言語	英語
キーワード	ironmaking blast furnace
	coke bed
	trickle flow
	molten slag
	static holdup
	Bingham plastic fluid
発行日	2020-07-15
出版者	一般社団法人日本鉄鋼協会 (The Iron and Steel Institute of Japan)
収録物名	ISIJ international
巻(号)	60(7)
ページ	1445-1452
抄録	A simulation of the dripping behavior of solid-phase suspended molten slag in a coke bed was performed using the Bingham fluid model in the framework of smoothed particle hydrodynamics (SPH). SPH can track the motion of droplets which are suspended in dispersed solids. A case study was performed in which the yield coefficient varied with the viscosity coefficient of the molten SiO2-CaO-Al2O3 slag, with suspended solids approximated by the Bingham fluid model, and the holdup droplets were trapped at approximately the same site regardless of the yield value. When the yield value exceeded the threshold, the volume of each holdup droplet increased. This threshold is correlated with the decrease in the shear rate at the bottleneck. Increasing the solid phase ratio in the molten slag is also predicted to increase the yield value with viscosity; thus, the amount of holdup droplets increases at the specific holdup sites as a dispersed phase. This indicates that the increase in the yield value approaches the powder holdup mechanism that is closed one after another starting from a specific holdup site.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
PISSN	0915-1559
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.2355/isijintemational.ISIJINT-2019-701