Design optimization of bell rocket nozzle; numerical studies using LESdoi:10.2514/6.2022-3806The effect of the overexpansion on the efficiency of bell nozzle is computationally studied using the large-eddy simulation (LES) approach. The studies are conducted for three different altitudes 0m, 5,000...
Shock pattern in the plume of rocket nozzles: needs for design consideration Hagemann,G.,Frey,... - SHOCK WAVES -BERLIN- 被引量: 28发表: 2008年 Shock pattern in the plume of rocket nozzles: needs for design consideration Hagemann, G., Frey, M.: Shock pattern in the plume of rocket ...
Nozzles tend to be either two- or three-dimensional. Heat transfer characteristics, particularly in the throat, where the peak heat flux occurs, are not well understood. Heat transfer predictions for these small thrusters have been made with one-dimensional analysis such as the Bartz equation or...
investigated because poor design may lead to an explosive buildup of pressure with disastrous results. The sensitivity of solid propellants to environmental conditions, like initial temperature, is described. The acceleration of thecombustion gasesmoving down the motor toward the nozzle can increase the...
For ideal nozzles, basically two different types of shock structures in the plume may appear for overexpanded flow conditions, a regular shock reflection or a Mach reflection at the nozzle centreline. Especially for rocket propulsion, other nozzle types
In many cases, the rigidity requirement poses the largest structural design constraint among the requirements specified by the launch vehicle. Typically, fundamental frequencies of 10 Hz in the lateral direction and 30 Hz in the longitudinal direction are required. Show moreView chapterExplore book ...
Keywords Nozzle design · Method of characteristics · Shape optimization · Compressible flow · Surrogate-based optimization 1 Introduction The universe and the vastness of space have always been one of the greatest mysteries known to mankind. As time passed and technology evolved, ...
Design and Cfd Optimization of Methane Regenerative Cooled Rocket Nozzles.作者: Bradford, Christopher Linn 页数: 216 ISBN: 9781249081173 豆瓣评分 目前无人评价 评价: 写笔记 写书评 加入购书单 分享到 推荐 Design and Cfd Optimization of Methane Regenerative Cooled Rocket Nozzles.的创作者 ··· Chris...
In Sweden about the turn of the century,Wilhelm Unge invented a device described as an “aerial torpedo.” Based upon the stickless Hale rocket, it incorporated a number of design improvements. One of these was a rocket motor nozzle that caused the gas flow to converge and then diverge. An...
the single most authoritative sourcebook on rocket propulsion technology. More comprehensive and coherently organized than any other book on the subject, Rocket Propulsion Elements guides readers evenhandedly through the complex factors that shape propulsion, with both theory and practical design ...