Results 21 to 30 of about 49,471 (336)

Thermal-Structural Analysis of Regenerative Cooled Scramjet [PDF]

Modern Applied Science, 2010
A numerical model is developed to quantitative evaluation of the thermal and structural characteristics of the regenerative cooled scramjet engine. The three-dimensional internal CFD platform for scramjet and the computational program of domestic aviation kerosene properties are incorporated together to develop three dimensional thermal evaluation code.
Jin Jiang, Ruoling Zhang, Feng Wang
openaire   +1 more source

A Coupled Heat Transfer Calculation Strategy for Composite Cooling Liquid Rocket Engine

Aerospace, 2023
To better understand the characteristics of coupled heat transfer in liquid rocket engines, a calculation scheme is proposed in this paper. This scheme can simulate the coupled heat transfer processes, including combustion and flow in the thrust chamber,
Bo Xu, Bing Chen, Jian Peng, Wenyuan Zhou, Xu Xu   +4 more
doaj   +1 more source

Numerical Study on the Effect of Buoyancy on Heat Transfer and Flow of Aviation Kerosene

Hangkong gongcheng jinzhan, 2021
Under different gravity conditions, the buoyancy can influence different effects of regeneration cooling effect of aviation kerosene.The RNG k-ε turbulence three-dimensional model is established, which is verified by comparing the wall temperature ...
YAO Changxin
doaj   +1 more source

Effects of thermal and pressure loads on structural deformation of liquid oxygen/methane engine combustion chamber

Journal of Thermal Science and Technology, 2020
To investigate the influences of thermal and pressure loads on the structural deformation of the Liquid Oxygen/Methane rocket engine combustion chamber, a complete thermo-structural analysis scheme including fluid-thermal analysis and structural finite ...
Di LIU, Bing SUN, Jiawen SONG, Taiping WANG, Xingyu MA   +4 more
doaj   +1 more source

Numerical Investigation on the Heat Transfer of n-Decane in a Horizontal Channel with Axially Nonuniform Heat Flux under Supercritical Pressure

Aerospace, 2022
Regenerative cooling is considered promising in the thermal protection of hypersonic propulsion devices such as SCRamjet. However, the heat transfer deterioration (HTD) of hydrocarbon fuel is a severe threat to the thermal structure safety, especially ...
Jin Zhang, Qilin Zhou, Xudong Zhao, Yuguang Jiang, Wei Fan   +4 more
doaj   +1 more source

Energy saving potential of a counter-flow regenerative evaporative cooler for various climates of China: Experiment-based evaluation [PDF]

, 2017
© 2017 Recently there has been growing interest in regenerative evaporative coolers (REC), which can reduce the temperature of the supply air to below the wet-bulb of intake air and approach its dew-point.
Chen, Hongbing, Dong, Xuelin, Duan, Zhiyin, Zhan, Changhong, Zhao, Xudong   +4 more
core   +1 more source

Numerical framework of hybrid nanofluid over two horizontal parallel plates with non-linear thermal radiation

International Journal of Thermofluids, 2023
Significance of study: High combustion temperatures necessitate appropriate cooling systems in the combustion process. Regenerative cooling is used in the majority of chambers in liquid propellant engines.
Umar Farooq, Hassan Waqas, Sobia Noreen, Muhammad Imran, Ali Akgül, Dumitru Baleanu, Sayed M.El Din, Taseer Muhammad, Ahmed M Galal   +8 more
doaj   +1 more source

Mechanical oscillation and cooling actuated by the optical gradient force [PDF]

, 2009
In this work we combine the large per-photon optical gradient force with the sensitive feedback of a high quality factor whispering-gallery microcavity.
Jessie Rosenberg, Kerry J. Vahala, Oskar Painter, Qiang Lin, V. B. Braginskiĭ, V. B. Braginskiĭ, Xiaoshun Jiang   +6 more
core   +2 more sources

Comparative Study of the Cross-Flow Heat and Mass Exchangers for Indirect Evaporative Cooling Using Numerical Methods

Energies, 2018
This paper presents a comparative study of the cross-flow regenerative heat and mass exchanger (HMX) and the conventional cross-flow HMX for indirect evaporative cooling (IEC) with numerical methods.
Yugang Wang, Xiang Huang, Li Li
doaj   +1 more source

Improving the performance of LOX/kerosene upper stage rocket engines

Propulsion and Power Research, 2017
Improved liquid rocket engine cycles were proposed and analyzed via comparison with existing staged combustion and gas-generator cycles. The key features of the proposed cycles are regenerative cooling of thrust chamber by oxygen and subsequent use of ...
IgorN. Nikischenko, Raymond D. Wright, Roman A. Marchan   +2 more
doaj   +1 more source