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Phase diagram for the spreading behavior of water drops impacting hot walls observed via high-speed IR imaging 高速红外成像观察水滴冲击热壁扩散行为的相图
IF 0.8 Q3 Chemical Engineering Pub Date : 2022-01-01 DOI: 10.1299/jfst.2022jfst0009
T. Okabe, K. Shirai, Takumi Okawa, J. Okajima, Minori Shirota
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引用次数: 0
Aerodynamic study of a circular arc airfoil at low Reynolds numbers using Cartesian mesh CFD 低雷诺数下圆弧翼型气动特性的笛卡尔网格CFD研究
IF 0.8 Q3 Chemical Engineering Pub Date : 2022-01-01 DOI: 10.1299/jfst.2022jfst0007
Takumi Takase, Daisuke Sasaki, M. Okamoto
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引用次数: 0
Texture shape optimization analysis using a new acceleration gradient method based on the Taylor expansion and conjugate direction 基于泰勒展开和共轭方向的加速梯度法纹理形状优化分析
IF 0.8 Q3 Chemical Engineering Pub Date : 2022-01-01 DOI: 10.1299/jfst.2022jfst0011
Hiroaki Arata, M. Kishida, T. Kurahashi
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引用次数: 0
Prediction of transonic 2D wing flutter using the time-spectral computational fluid dynamics 跨声速二维机翼颤振的时谱计算流体动力学预测
IF 0.8 Q3 Chemical Engineering Pub Date : 2022-01-01 DOI: 10.1299/jfst.2022jfst0004
K. Miyaji, Hiroto Takegawa
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引用次数: 0
Theoretical investigation of discharge and pressure distribution of a pipe with a continuous longitudinal slot 连续纵槽管道流量及压力分布的理论研究
IF 0.8 Q3 Chemical Engineering Pub Date : 2022-01-01 DOI: 10.1299/jfst.2022jfst0012
Y. Nishio, T. Ogawa, Yukika Toda, Masataka Morimatsu, Ryohei Unno, A. Inasawa
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引用次数: 0
Energy generation characteristics of pressure retarded osmosis using polymer solution 聚合物溶液缓压渗透的产能特性
IF 0.8 Q3 Chemical Engineering Pub Date : 2022-01-01 DOI: 10.1299/jfst.2022jfst0002
K. Bando, R. Otomo, Yuma Suzuki, Takamori Shiomi, Yusuke Nishizaki
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引用次数: 0
Pressure drop mechanisms in a cooling system enclosure 冷却系统外壳内的压降机制
IF 0.8 Q3 Chemical Engineering Pub Date : 2022-01-01 DOI: 10.1299/jfst.2022jfst0014
T. Kawano, M. Fuchiwaki
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引用次数: 1
Sensitivity to the application range of buoyancy force in the diffuse-interface immersed boundary method 扩散界面浸入边界法对浮力取值范围的敏感性
IF 0.8 Q3 Chemical Engineering Pub Date : 2022-01-01 DOI: 10.1299/jfst.2022jfst0015
M. Endo, Kosuke Suzuki, M. Yoshino
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引用次数: 1
Numerical simulation on the effects of power-law fluidic properties on the suspension rheology 幂律流体特性对悬浮液流变性影响的数值模拟
IF 0.8 Q3 Chemical Engineering Pub Date : 2021-01-01 DOI: 10.1299/jfst.2021jfst0022
Miho Tanaka, T. Fukui, M. Kawaguchi, K. Morinishi
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引用次数: 3
One-dimensional numerical calculation for unsteady gas-liquid flow in micro channels with air gaps 气隙微通道内气液非定常流动的一维数值计算
IF 0.8 Q3 Chemical Engineering Pub Date : 2021-01-01 DOI: 10.1299/jfst.2021jfst0015
K. Noda, T. Inaba
A numerical calculation model for gas-liquid unsteady two-phase flow in a micro channel was established and validated. The model focuses on flow in a channel including air gaps. It also reduces calculation cost by minimizing the number of control-volume elements compared with conventional numerical methods for gasliquid two-phase flow. Gas-liquid two-phase flow in channels with diameters of 1 to 2 mm is important in liquid transportation in chemical processing and analysis. As for designing flow channels in chemical processing and analysis, simple numerical models are desirable to evaluate many possible patterns quickly. The model uses moving boundaries that correspond to gas-liquid interfaces, but it represents boundaries between different channels with fixed boundaries. By setting several different configurations of air gaps, the numerical model was validated in regard to position and volume of air gaps in the channel. As an application of the numerical model to the design of flow channels in chemical processing and analysis, the necessary movement conditions of a syringe pump to achieve quick liquid transportation were investigated. By applying the numerical model, the necessary conditions to minimize flow rate oscillation were determined. In simulation-based design of microchannel, the numerical model in this research is an effective tool to determine design parameters quickly.
建立了微通道内气液两相非定常流动的数值计算模型并进行了验证。该模型关注的是包括气隙在内的通道中的流动。与传统的气液两相流数值计算方法相比,该方法通过减少控制体积单元的数量来降低计算成本。在化学加工和分析中,1 ~ 2mm直径的气液两相流在液体输送中起着重要的作用。在设计化学加工和分析过程中的流道时,最好采用简单的数值模型来快速评估多种可能的模式。该模型使用移动边界对应于气液界面,但它表示不同通道之间的边界具有固定边界。通过设置几种不同的气隙构型,验证了数值模型中气隙的位置和体积。将数值模型应用于化工加工与分析的流道设计,研究了注射泵实现快速液体输送所需的运动条件。应用数值模型,确定了减小流量振荡的必要条件。在基于仿真的微通道设计中,本文研究的数值模型是快速确定设计参数的有效工具。
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引用次数: 0
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Journal of Fluid Science and Technology
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