Results 11 to 20 of about 4,282 (226)

Recent Advancements in Design Optimization of Lattice‐Structured Materials

open access: yesAdvanced Engineering Materials, Volume 25, Issue 17, September 2023., 2023
Enhancement in the performance of lattice materials involves improving the design in the manufacturing process. Functional gradation and multimorphology strategies are utilized to enhance the multifunctionality of lattice materials. As the preceding strategies involve challenges and limitations, utilizing them concurrently with automated design ...
Abdulla Alhembar   +4 more
wiley   +1 more source

Quasi-One-Dimensional Model of Hydrocarbon-Fueled Scramjet Combustor Coupled with Regenerative Cooling

open access: yesInternational Journal of Aerospace Engineering, 2022
In order to rapidly predict the performance of hydrocarbon-fueled regeneratively cooled scramjet engine in system design, a quasi-one-dimensional model has been developed.
Yuefei Xiong   +4 more
doaj   +1 more source

Prediction of Equivalence Ratio in Combustion Flame Using Chemiluminescence Emission and Deep Neural Network

open access: yesInternational Journal of Energy Research, Volume 2023, Issue 1, 2023., 2023
A reliable combustion monitoring system is essential to satisfy global carbon neutrality trends. As the concentrations of emissions and flame stability are associated with the air–fuel ratio, the equivalence ratio should be continuously evaluated. In this study, a deep neural network‐ (DNN‐) based regression model is proposed to predict the equivalence
Sanghun Shin   +4 more
wiley   +1 more source

Summary of Active Mixing Enhancement Technology for Scramjet [PDF]

open access: yesHangkong bingqi, 2023
Fuel mixing and enhancement is the key technology of modern scramjet engine. In view of the problem of how to fully mix fuel, researchers have developed a variety of mixing enhancement technologies, which are mainly divided into active and passive types.
Wang Wenlong, Gai Zilin, Ma Cenrui, Wang Hongyu
doaj   +1 more source

Review on Creep Phenomenon and Its Model in Aircraft Engines

open access: yesInternational Journal of Aerospace Engineering, Volume 2023, Issue 1, 2023., 2023
The aircraft is subjected to high‐temperature and high‐pressure conditions during flight, which renders it susceptible to the occurrence of creep phenomenon. Several academics have conducted extensive research on this issue. This research paper provides a comprehensive overview of the existing literature on creep phenomena in aircraft engines.
Lin Yuan   +7 more
wiley   +1 more source

Comparison of Dual-Combustion Ramjet and Scramjet Performances Considering Combustion Efficiency

open access: yesApplied Sciences, 2022
The performances of a dual-combustion ramjet (DCR) and a scramjet were compared via computational fluid dynamics numerical simulation to provide theoretical guidance for engine selection for a hypersonic vehicle.
Xianju Wu, Zhijun Wei
doaj   +1 more source

Analysis of the Shock Wave/Boundary Layer Interaction considering a Compression Corner Model Using the MacCormack Method

open access: yesJournal of Engineering, Volume 2023, Issue 1, 2023., 2023
The objective of this paper is to numerically study the shock wave/boundary layer interaction and boundary layer separation. The first stage of this research is the development of methodology, flow simulations, and data analysis. When comparing the plots, it can be seen that the results of the check of the methodology were similar.
Ana Maria Pereira Lara   +2 more
wiley   +1 more source

A Preliminary Research on Combustion Characteristics of a Novel-Type Scramjet Combustor

open access: yesInternational Journal of Aerospace Engineering, 2022
In this work, a new configuration of strut-based scramjet is proposed, and a series of simulations are conducted to investigate its possibility of practical application.
Linqing Zhang   +4 more
doaj   +1 more source

Characteristics of Flow Development and Boiling Transitions in the Liquid Oxygen Chill‐Down Process in a Straight Horizontal Exit‐Contracted Pipe

open access: yesInternational Journal of Aerospace Engineering, Volume 2023, Issue 1, 2023., 2023
Liquid oxygen chill‐down in a straight horizontal pipe was studied experimentally. The effect of the entrance corner was excluded, and much denser wall temperature sensors along the pipe have been set compared to the present studies. In this way, the chill‐down process, as well as the development of the flow pattern, has been drawn for every test. As a
Lanwei Chen, Jiaqi Zhang, Yiheng Tong
wiley   +1 more source

The Influence of Bleeding Direction on Starting Performance of Three‐Dimensional Inward Turning Inlet

open access: yesInternational Journal of Aerospace Engineering, Volume 2023, Issue 1, 2023., 2023
Bleeding is an effective method to improve the starting performance of the inlet, and the conventional method often adopts the bleeding to longitudinal direction. This article proposes the use of transversal bleeding method to explore the influence on starting capacity by changing the bleeding direction. The paper designs 6 bleeding inlets.
Tianyu Gong   +5 more
wiley   +1 more source

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