德国继续高超音速推进研究

德国继续高超音速推进研究对非对称二维喷管采用氢进行冷却研究之后，德国ＭＴＵ公司设想在１９９５年实现一个马赫数７的冲压发动机的实验机。德国的Ｓａｎｇｅｒ高超音速轨道飞机将采用涡轮喷气／液氢冲压组合发动机为动力装置。发动机拥有一个矩形进气道和一个扩压器。...     

激光燃速仪的燃烧室流场分析计算

 Numerical method of flow field of laser servo-controlled strand window bomb was studied and discussed. Stream function and vorticity method of axisymmetric, steady, incompressible flow field was also studied and discussed. Axisymmetric finite difference stream function-vorticity equations on interior points and the points near oblique boundary were derived. Boundary conditions were given and initial interative field was offered before calculation. Cross-bidirectional scanning method was used for increasing parameter transmission rate and relaxation method which could increase convergent stability was applied. At last, the flow field of laser servo-controlled strand window bomb was shown, including motion patterns and vorticity flow scatter diagrams. The solutions were in concordance to the solutions by Mills et al. and the theories by Pan and Acrivos.     

国外氢氧火箭发动机的发展状况

本文全面地介绍了国外研制氢氧火筋发动机的发展概况。分别叙述了美国、法国和西欧、以及日本在氢氧火箭发动机技术上的发展历史,目前状况和今后的发展方向。从中可以看出,当今的氢氧推进技术是液体火箭推进技术中的一项极其重要的技术,是液体推进技术在运载火箭和航天飞行应用中的发展方向。     

Culick的线性声振荡燃烧理论研究

本文对F·E·C·Culick的线性声振荡燃烧理论进行了概括。对其特点和理论价值进行了评述,井提出了自己的看法。     

超燃冲压发动机的验证器

超燃冲压发动机的验证器根据德国研制桑格尔两级可重复使用航天飞机用混合循环涡轮／冲压吸气式推进系统的一项计划的第１ｃ阶段计算，德国航空航天公司所属ＭＴＵ公司正在建造全冲压推进地面试验验证器。该验证器称为ＴＤＲ５００，长度为７ｍ，具有一个可变喉道面积的矩...