The thermal performance prediction and development of ablator for reentry probes using a smallsat.

使用小卫星再入探测器的烧蚀体的热性能预测和开发。

• 批准号: 23560954
• 负责人: KIHARA Hisashi
• 金额: $ 3.41万
• 依托单位: Kyushu 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-23560954/
• 关键词: 大気突入; 軽量アブレータ; 連成解析; Hayabusa; アーク加熱風洞; 熱流束; リセッション; 高温気体; 再突入; 超高速流; 熱防御システム; 高エンタルピ気流; 大気圏突入; アブレータ; TPS; 多孔質; 非平衡流; 高エンタルピ―流

It was performed that the development and a performance prediction of lightweight ablator. The beginning of heating, heat flux due to the gas advection plays an important role for heat transfer. The variation of permeability of the ablator is very effective on the thermal response of the ablator.A trajectory-based flow field simulation around Hayabusa capsule loaded lightweight ablator coupled with thermal response was carried out. The pyrolysis gas flow transport energies to the direction of rear wall and it makes the apparent heat conduction higher. The difference of stagnation heat flux between heavy ablator and lightweight ablator is very small. The surface recession of lightweight ablator is few times larger than heavy ablator. Therefore, this study shows lightweight ablator cannot use same thickness but it suggests that it can prevent heat by slightly increasing the thickness of the lightweight ablator.

进行了轻量级消融器的研制和性能预测。加热开始时，由于气体平流产生的热通量对传热起着重要作用。烧蚀体渗透率的变化对烧蚀体的热响应非常有效。对隼鸟胶囊装载的轻质烧蚀体进行了基于轨迹的流场模拟与热响应耦合。热解气流将能量向后壁方向输送，使得表观热传导更高。重型烧蚀体和轻质烧蚀体之间的停滞热通量差异非常小。轻型烧蚀体的表面凹陷比重型烧蚀体大几倍。因此，这项研究表明轻质烧蚀器不能使用相同的厚度，但它表明可以通过稍微增加轻质烧蚀器的厚度来防止热量。

项目成果

NUMERICAL STUDY OF PYROLYSIS GAS FLOW AND HEAT TRANSFER INSIDE AN ABLATOR

• DOI: 10.1615/computthermalscien.2012004762
• 发表时间: 2012
• 期刊: Computational Thermal Sciences: An International Journal
• 作者: Naoya Hirata;S. Nozawa;Yusuke Takahashi;H. Kihara;K. Abe

Numerical evaluation of nonequilibrium plasma flow in 1kW class thruster

1kW级推进器非平衡等离子体流数值计算

• 发表时间: 2013
• 作者: 末信一朗;内井俊貴;坂元博昭;里村武範;櫻庭春彦;大島敏久;天尾豊;木原尚;末 信一朗; 内井俊貴; 坂元博昭; 里村武範; 櫻庭春彦; 大島敏久;天尾豊，池山秀作;Hisashi Kihara;T.Matsushita;廣田湧也; 石倉 優; 里村武範; 櫻庭春彦; 大島敏久; 末 信一朗;天尾豊;生田健次郎;櫻庭春彦;甲斐温朗，天尾豊;Yu Minghao
• 通讯作者: Yu Minghao

A Study of Thermal Response and Flow Field Coupling Simulation around Hayabusa Capsule Loaded with Light-Weight Ablator

轻型烧蚀体隼鸟舱周围热响应与流场耦合模拟研究

• DOI: 10.4236/ojfd.2013.32a016
• 发表时间: 2013
• 期刊: Open Journal of Fluid Dynamics
• 作者: Hisashi Kihara;Naoya Hirata;Ken-ichi Abe
• 通讯作者: Ken-ichi Abe

20kW級アーク加熱風洞で加熱されるアブレータ内部の熱分解ガス流動の影響

20kW级电弧加热风洞中加热的烧蚀机内热解气流的影响

• 发表时间: 2012
• 作者: 加納 義貴;上原 成一朗;岩田 英之;鹿島 康治;大島 敏久;櫻庭春彦;天尾 豊;木原尚
• 通讯作者: 木原尚

Numerical Investigation of Flow Fields in Inductively Coupled Plasma Wind Tunnels

• DOI: 10.1088/1009-0630/16/10/06
• 发表时间: 2014-10
• 期刊: Plasma Science and Technology
• 影响因子: 1.7
• 作者: M. Yu 喻;Yusuke Takahashi;H. Kihara;K. Abe;Kazuhiko Yamada;T. Abe