Results 41 to 50 of about 67,829 (315)

Comparison of Optimization Techniques and Objective Functions Using Gas Generator and Staged Combustion LPRE Cycles

Applied Sciences, 2022
This paper compares various optimization techniques and objective functions to obtain optimum rocket engine performances. This research proposes a modular optimization framework that provides an optimum design for Gas Generator (GG) and Staged Combustion
Suniya Sadullah Khan, Ihtzaz Qamar, Muhammad Umer Sohail, Raees Fida Swati, Muhammad Azeem Ahmad, Saad Riffat Qureshi   +5 more
doaj   +1 more source

Optimizing the Cooling System of an LH2/LOX Rocket Engine using the Bees Algorithm [PDF]

مکانیک هوافضا, 2023
Upgrading the thermal efficiency of the cooling system of liquid rocket engines is one of the most significant and intricate problems in designing modern rocket engines in the missile industry.
Navid Bozorgan
doaj  

Parametric Simulation Study of Liquid Film Cooling of Hydrocarbon Liquid Rocket Engine

Aerospace
The hydrocarbon liquid rocket engine working environment is harsh; the thrust chamber needs to withstand high temperatures and a high-pressure working environment, and the thrust chamber wall material is difficult to bear, so it is necessary to design ...
Huixin Yang, Haoyu Zou, Zeming Song, Wenhao Yu   +3 more
doaj   +1 more source

Development Trend of Liquid Hydrogen-Fueled Rocket Engines (Part 1: Performance and Operation) [PDF]

International Journal of Aeronautical and Space Sciences, 2022
Ha D, Roh T, Huh H, Lee H.
europepmc   +3 more sources

Rotating Bending Fatigue Behavior of AlSi10Mg Fabricated by Powder Bed Fusion-Laser Beam: Effect of Layer Thickness

Crystals
A single batch of AlSi10Mg powder was used to fabricate two groups of round bars via horizontal printing, employing an identical strategy except for one parameter in the process of powder bed fusion-laser beam. The parameter is layer thickness, set at 50
Lu Liu, Shengnan Wang, Yifan Ma
doaj   +1 more source

Effects of radiation, curvature, and preferential diffusion on the extinction of laminar non-premixed flames

AIP Advances, 2022
The combined effects of radiative heat loss, curvature, and preferential diffusion on laminar non-premixed flames (or flamelets) are investigated in this work by using asymptotic analysis.
Yushan Gao, Wang Han, Zheng Chen, Qingfei Fu, Lijun Yang   +4 more
doaj   +1 more source

Additive Manufacturing of Liquid Rocket Engine Combustion Devices: A Summary of Process Developments and Hot-Fire Testing Results

2018 Joint Propulsion Conference, 2018
Additive Manufacturing (AM) of metals is a processing technology that has significantly matured over the last decade. For liquid propellant rocket engines, the advantages of AM for replacing conventional manufacturing of complicated and expensive ...
P. Gradl, S. Greene, C. Protz, Brad Bullard, J. Buzzell, C. Garcia, J. Wood, K. Cooper, J. Hulka, R. Osborne   +9 more
semanticscholar   +1 more source

Physics-Embedded Recurrent Graph Neural Network for Fault Diagnosis of Complex Systems

IEEE Access
The improvement of fault diagnosis for complex equipment is an important step towards intelligent systems. Unlike component-level fault detection, system-level fault diagnosis presents new challenges, such as the integration of multiple sensors, the ...
Yushan Gao, Zhirong Zhong, Meng Ma, Zhenzhen Zhang, Yuxiang Zhang, Chenxi Wang, Zhizhen Wang   +6 more
doaj   +1 more source

Liquid Propulsion at IAE: Vision of the activities and future perspectives [PDF]

Journal of Aerospace Technology and Management, 2009
This paper presents the activities in the area of liquid propulsion, which received an effective boost at the end of the 90s. There is a consensus among specialists on the use of liquid propulsion in the next generation of satellite launcher vehicles in ...
Marco F. Carvalho Torres, Daniel Soares de Almeida, Yelisetty S. Rama Krishna, Luiz Antônio Silva, Wilson Kiyoshi Shimote   +4 more
doaj  

Petri Nets Applied in Purge Algorithm Analysis for a Rocket Engine Test with Liquid Propellant

Aerospace, 2023
During the development stage of a space vehicle, instrumented tests are carried out on the ground to prove the operational capacity of each liquid-propellant rocket engine, which is installed in this type of vehicle.
Evandro Rostirolla Bortoloto, Francisco Carlos Parquet Bizarria, José Walter Parquet Bizarria   +2 more
doaj   +1 more source