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- Then, the base bleed method is introduced on a general supersonic missile to decrease the base drag of the inlet cowl for the first time and is validated by wind tunnel test. 本文首次将底部排气法应用于导弹上,结合一种具有常规气动布局的超声速导弹进行了底部排气方案设计,采用一种“底窝器”来提高进气道整流罩的底部压强,并进行了风洞实验验证。
- It is shown that reducing the base drag of projectile and increasing the range of it are possible by means of base bleed burning in subsonic and transonic speeds. 说明在亚、跨声速下采用底排燃烧的方法仍可有效减少弹丸底部阻力增加射程。
- To minimize the base drag and obtain optimized result of drag,it is important to select correctly the stern length,stern angle and base bleed parametres. 使用优化设计方法,正确地选择船尾长度、船尾角以及底排装置的各种参数,使其后体阻力最小,达到最佳减阻效果,求得这些参数的优化结果
- The paper presents an engineering calculation method for the base drag of base bled projectiles based on the base drag reduction characteristics duo to base burning of fuelrich solid fuels. 给出一种以固体燃料底排减阻特性为基础的底排弹底阻工程估算方法。
- Bowman J E, Clayden W A. Reduction of base drag by gas ejection. RARDE Rep.4169 丁则胜;罗荣;陈少松.;底部燃烧减阻性能的若干参数影响研究
- The runner was retired put out at first base. 跑垒者于第一垒上被刺杀出局。
- The runner went to second base on a wild pitch. 一记瞎设让跑垒员跑上了第二垒。
- You cannot enter a military base without a permit. 无通行证者不得擅入军事基地。
- Her heavy industry rests on a broad and firm base. 它的重工业有广泛坚实的基础。
- He caught me off base with that question. 他的问题猝然把我给问倒了。
- The bombers swooped on the air base. 轰炸机突袭空军基地。
- Many languages have Latin as their base. 许多语言都以拉丁语为基础。
- His base conduct was condemned by everyone. 他的无耻行为受到所有人的谴责。
- His idea is completely off base. 他的想法大错特错。
- Two soldiers dismounted the gun from the base. 两个战士把炮从底座上卸下来。
- In a poor, lowly, or base manner. 简陋地,谦卑地,卑鄙地
- The sea washes the base of the cliffs. 海水拍打著悬崖的底部。
- An investigation on characteristics of base drag reduction with base bleed in subsonic and transonic speeds 亚、跨声速底排减阻特性研究
- To betray a friend is a base action. 背叛朋友是卑劣的行为。
- The pilot was trying to make contact with his base. 飞行员正试图与基地联系。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries