Numerical analysis of the dynamic motion of a bubble rising through shear-thinning viscoelastic fluids

通过剪切稀化粘弹性流体上升的气泡动态运动的数值分析

• 批准号: 21560161
• 负责人: OHTA Mitsuhiro
• 金额: $ 2.75万
• 依托单位: Muroran Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21560161/
• 关键词: Shear-thinning特性; 粘弾性特性; 数値解析; 気泡運動; 気泡ダイナミクス; 液滴ダイナミクス; 変形分裂ダイナミクス; 気泡上昇運動

A numerical method with a new hybrid model which combines the Carreau model for treating shear-thinning properties with the FENE.CR model for treating elastic properties was established for computing non-Newtonian gas-liquid flows. The motion of a bubble or drop rising in shear-thinning viscoelastic fluids and drop deformation and breakup in shear-thinning viscoelastic shear flows were computed using the established method. Numerical results revealed that both elastic and shear-thinning properties had synergistic effects on the bubble or drop motion.

建立了一种新混合模型的数值方法，该方法结合了处理剪切稀化特性的Carreau模型和处理弹性特性的FENE.CR模型来计算非牛顿气液流动。使用所建立的方法计算了剪切稀化粘弹性流体中气泡或液滴上升的运动以及剪切稀化粘弹性剪切流中液滴的变形和破碎。数值结果表明，弹性和剪切稀化特性对气泡或液滴运动具有协同效应。

项目成果

Numerical Simulations of the Motion of a Bubble Rising in Polymeric Liquids

聚合物液体中气泡上升运动的数值模拟

• 发表时间: 2011
• 作者: Tomohiro Furukawa;Mitsuhiro Ohta;Yutaka Yoshida;Mark Sussman
• 通讯作者: Mark Sussman

Three-Dimensional Simulations of a Bubble Rising in Shear-Thinning Viscoelastic Fluids

剪切稀化粘弹性流体中气泡上升的三维模拟

• 发表时间: 2010
• 作者: 渡辺暁;他3名;Mitsuhiro Ohta
• 通讯作者: Mitsuhiro Ohta

Three-Dimensional Computation of a Bubble Rising in a Shear-Thinning Viscoelastic Fluid

剪切稀化粘弹性流体中气泡上升的三维计算

• 发表时间: 2010
• 作者: 富永良和;他2名;Mitsuhiro Ohta
• 通讯作者: Mitsuhiro Ohta

粘度変化を伴う粘弾性流体中を上昇する気泡運動の三次元数値解析

粘弹性流体中随粘度变化的气泡运动上升的三维数值分析

• 发表时间: 2011
• 作者: 古川智浩;太田光浩;吉田豊
• 通讯作者: 吉田豊

Three-Dimensional Simulations of a Bubble Rising Through Shear-thinning Viscoelastic Fluids

剪切稀化粘弹性流体中气泡上升的三维模拟

• 发表时间: 2010
• 作者: 渡辺暁;他3名;Mitsuhiro Ohta
• 通讯作者: Mitsuhiro Ohta