Results 71 to 80 of about 13,247 (287)

Analysis of Dual Bell Nozzle Configurations: Design Parameters and Performance Measurements [PDF]

Journal of Applied Fluid Mechanics
The auto-adaptation capability of the dual-bell nozzle (DBN) facilitates and enhances the performance of rocket propulsion systems, thus rendering it suitable for sea-level operations and efficient transitions at varying altitudes.
T. Chehat, H. Kbab, W. Hamaidia, B. Benaouda Zouaoui   +3 more
doaj   +1 more source

Nuclear thermal rocket nozzle testing and evaluation program [PDF]

Performance characteristics of the Nuclear Thermal Rocket can be enhanced through the use of unconventional nozzles as part of the propulsion system. The Nuclear Thermal Rocket nozzle testing and evaluation program being conducted at the NASA Lewis is ...
Davidian, Kenneth O., Kacynski, Kenneth J.   +1 more
core   +1 more source

Can Spacecraft‐Borne Contamination Compromise Our Understanding of Lunar Ice Chemistry?

Journal of Geophysical Research: Planets, Volume 130, Issue 11, November 2025.
Abstract Recent detections of water ice in the permanently shadowed regions (PSRs) at the lunar poles have reignited scientific and commercial interest in the exploration of Earth's closest neighbor. The frigid temperatures in PSRs operate as cold traps for volatiles and may represent large reservoirs of materials, including water ice and prebiotic ...
Francisca S. Paiva, Silvio Sinibaldi
wiley   +1 more source

Numerical simulation of gas dynamics during operation of a wide-range rocket nozzle with a porous insert

Научно-технический вестник информационных технологий, механики и оптики
When the rocket moves in the dense layers of the Earth’s atmosphere, classical nozzles operate in the jet overexpansion mode. In this mode, there is a partial decrease in the magnitude of the specifc impulse.
M. V. Mikhailov, N. V. Prodan, M. E. Renev   +2 more
doaj   +1 more source

Behavior of nozzles and acoustic liners in three-dimensional acoustic fields Quarterly report, 1 Sep. - 31 Dec. 1969 [PDF]

Theoretical studies and test facility installation for investigating behavior of rocket nozzles and acoustic liners in three dimensional acoustic ...
Daniel, B. R., Smith, A. J., Jr., Zinn, B. T.   +2 more
core   +1 more source

Analytical investigation of side jet supersonic stream interaction including vortex flow in rocket nozzles for thrust vector control [PDF]

Analytical investigation of side jet supersonic stream interaction including vortex flow in rocket nozzles for thrust vector ...
Comparin, R. A., Wilson, W. G.
core   +1 more source

Import substitution and development prospects for the development and use of domestically produced adhesive compositions [PDF]

Космические аппараты и технологии
A pressing issue is the formation of an adhesive joint between rubber and metal with increased adhesive characteristics in elastic movable joints of nozzles in rocket and space technology. The results of tests of new domestic adhesives of the «Permlok-01»
G. I. Shaidurova, I. L. Vasiliev, Ya. S. Shevyakov, M. Yu. Oshchepkova, M. A. Kustov   +4 more
doaj  

Propulsion and Thermodynamic Parameters of van der Waals Gases in Rocket Nozzles

International Journal of Aerospace Engineering, 2019
Propellants or combustion products can reach high pressures and temperatures in advanced or conventional propulsion systems. Variations in flow properties and the effects of real gases along a nozzle can become significant and influence the calculation ...
Fernando S. Costa, Gustavo A. A. Fischer
doaj   +1 more source

Unified computer codes: Properties data for low cost nozzle materials [PDF]

The development of the analytic capability to predict the thermal ablation response of promising low cost materials for rocket nozzles is ...
Bedard, R., Chu, E., Tong, H.
core   +1 more source

Devising a method to design supersonic nozzles of rocket engines by using numerical analysis methods

, 2023
Ivan Dubrovskiy, Valeriy Bucharskyi
openalex   +2 more sources