…During re-entry, the vehicle moves through the atmosphere at a very high speed, so the temperature rise due to aerodynamic heating is extremely large (in the case of the Space Shuttle, the hottest part is about 1500°C at the tip of the nose), and some method is required to protect the vehicle. There are two types of cooling: radiative cooling and ablation cooling. The former is a method of cooling the vehicle by releasing gas or liquid from the surface of the vehicle, but has the disadvantage of requiring a complex structure. … *Some of the terminology that refers to "ablation cooling" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…再突入時には非常に大きな速度で大気中を運動するために,空力加熱による温度の上昇がきわめて大きなものとなり(スペースシャトルでは,もっとも高温になる機首先端で1500℃ほどにもなる),なんらかの方法で機体を保護する必要がある。これには放射冷却とアブレーション冷却と呼ばれるものがある。前者は,機体表面から気体や液体を放出し冷却させる方法で,構造が複雑になる欠点がある。… ※「アブレーション冷却」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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