Research on Relaxation Environment and Natural Drying of Food by Using Control of Vortical Fluctuation

利用涡动控制的松弛环境与食品自然干燥研究

• 批准号: 23560186
• 负责人: RINOSHIKA Akira
• 金额: $ 3.41万
• 依托单位: Yamagata University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23560186/
• 关键词: 渦; ゆらぎ; 快適環境; 食品乾燥; 自励起振動; ＦＦＴ

This study focuses on the phenomenon of vortex fluctuation generated by various bodies. This fluctuation may provide relaxation for human. The fluctuations of instantaneous velocity and vorticity are measured by PIV and are analyzed by FFT for various models. It is found that 1/f fluctuation occurs in a wide range for small interval of all models. The low vorticity is generated by the small interval models, and the high vorticity is generated by the large interval models.This study aims at applying the vortex flow simulating a natural wind to dry food in order to decrease the time of food drying. The experiment of food drying was performed in a wind tunnel at a constant air velocity, and carrot, sweet potato, pineapple and apple were used as test foods. A square cylinder was adopted to generate vortex flow and test foods were setup at the downstream of vortex flow. It is found that the vortical fluctuation flow decreases the moisture content of carrot and sweet potato quickly.

这项研究的重点是各种物体产生的涡流波动的现象。这种波动可以为人类放松。瞬时速度和涡度的波动通过PIV测量，并通过FFT分析各种模型。发现1/f波动发生在所有模型的较小间隔中。低间隔模型产生了低涡度，高涡度是由大间隔模型产生的。该研究旨在应用模拟天然风的涡流流以干燥的食物，以减少食物干燥的时间。食物干燥的实验是在恒定空气速度的风洞中进行的，胡萝卜，地瓜，菠萝和苹果用作测试食品。采用方形缸来产生涡流流，并在涡流流的下游设置测试食品。发现涡旋波动流量迅速降低了胡萝卜和红薯的水分含量。

项目成果

Dilute pneumatic conveying of a horizontal curved 90° bend with soft fins or dune model

• DOI: 10.1016/j.powtec.2014.01.039
• 发表时间: 2014-03
• 期刊: Powder Technology
• 影响因子: 5.2
• 作者: A. Rinoshika

Effect of oscillating soft fins on particle motion in a horizontal pneumatic conveying

• DOI: 10.1016/j.ijmultiphaseflow.2012.12.010
• 发表时间: 2013-06
• 期刊: International Journal of Multiphase Flow
• 影响因子: 3.8
• 作者: A. Rinoshika

An experimental study of a horizontal self-excited pneumatic conveying

水平自激式气力输送实验研究

• 发表时间: 2012
• 期刊: ASME Journal of Fluids Engineering
• 作者: T. Takashima;T. Ito;M. Shigeta;S. Izawa and Y. Fukunishi;A. RINOSHIKA;米村茂;新井晶大,足立高弘;F. Yan and A. RINOSHIKA
• 通讯作者: F. Yan and A. RINOSHIKA

Vortical dynamics in the wake of water strider locomotion

• DOI: 10.1007/s12650-011-0117-7
• 发表时间: 2012-05
• 期刊: Journal of Visualization
• 影响因子: 1.7
• 作者: A. Rinoshika

Characteristics of particle velocity and concentration in a horizontal self-excited gas–solid two-phase pipe flow of using soft

软质水平自激气固两相管流中颗粒速度和浓度特性

• 发表时间: 2012
• 期刊: International Journal of Multiphase Flow
• 影响因子: 3.8
• 作者: 米村 茂;磯野 晋;竹野貴法;三木寛之;高木敏行;F. Yan and A. RINOSHIKA
• 通讯作者: F. Yan and A. RINOSHIKA