Results 21 to 30 of about 139,373 (174)

Effects of Sidewall Compression and Relaminarization in a Scramjet Inlet [PDF]

open access: yes, 2013
This paper presents the numerical simulations and the performance analysis of a scramjet inlet as part of a combined experimental and numerical study.
Hohn, Oliver   +4 more
core   +1 more source

Fill‐In and Boiling Transition Characteristics during the Liquid Oxygen Chill‐Down Process in a Vertical Exit‐Contracted Pipe

open access: yesInternational Journal of Aerospace Engineering, Volume 2022, Issue 1, 2022., 2022
Liquid oxygen chill‐down in a vertical exit‐contracted pipe was investigated experimentally. The wall temperatures were recorded in detail to describe the filling and chill‐down process of the experimental section. Two quenching fronts, the exit one and the inlet one, were detected, and their propagations were found.
Jiaqi Zhang   +3 more
wiley   +1 more source

Numerical Investigations of the Effects of Sidewall Compression and Relaminarization in 3D Scramjet Inlet [PDF]

open access: yes, 2011
This paper presents the numerical simulations and performance analysis of a 3D scramjet inlet with focus on the effects of sidewall compression and relaminarization. A well-validated finite volume flow solver was used to simulate a scramjet inlet with a
Marek Behr   +9 more
core   +1 more source

Lagrange Optimization of Shock Waves for Two-Dimensional Hypersonic Inlet with Geometric Constraints

open access: yesAerospace, 2022
The present paper focuses on the Lagrange optimization of shock waves for a two-dimensional hypersonic inlet by limiting the cowl internal angle and inlet length.
Yuling Li   +4 more
doaj   +1 more source

Numerical Study on Pipeline Pressure Surge of the Large Aircraft Fuel System

open access: yesShock and Vibration, Volume 2022, Issue 1, 2022., 2022
The sudden closure of the refueling valve during the refueling process will cause the water hammer phenomenon in the pipeline of the large aircraft fuel system and produce pressure waves propagating along the pipeline. In serious cases, it will cause severe damage to the pipeline.
Yi Tu   +5 more
wiley   +1 more source

Analysis of a Three-Dimensional, High Pressure Ratio Scramjet Inlet with Variable Internal Contraction [PDF]

open access: yes, 2012
We conducted an extensive experimental examination of the operational behavior of a three-dimensional scramjet inlet featuring a movable cowl to adapt the internal contraction according to the respective operation conditions.
Hohn, Oliver   +3 more
core   +1 more source

Numerical Investigation on Flame Stabilization of Cavity‐Based Scramjet Combustor Using Compressible Modified FGM Model

open access: yesInternational Journal of Chemical Engineering, Volume 2022, Issue 1, 2022., 2022
The technology of flame stabilization on cavity‐based scramjet combustor has great significance in the field of future spacecraft. In this paper, a compressible modified FGM model was established based on the idea of the flamelet model, which was adopted to simulate the unsteady combustion process of the hydrogen transverse jet in the upper cavity of ...
Qi Zhang   +4 more
wiley   +1 more source

Experimental Investigation on the Influence of Sidewall Compression on the Flowfield of a Scramjet Inlet at Mach 7 [PDF]

open access: yes, 2011
In this paper, we present the results of an extensive measurement campaign to investigate the effect of external and internal sidewall compression as well as different contraction ratios on the performance of the flowfield of a scramjet inlet ...
Ali Gülhan   +3 more
core   +1 more source

Experimental Investigation on the Influence of Yaw Angle on the Inlet Performance at Mach 7 [PDF]

open access: yes, 2010
This paper presents the results of an extensive measurement campaign that was conducted with an two-dimensional hypersonic inlet in the Hypersonic Windtunnel H2K at the German Aerospace Center in Cologne in order to study the effects of angle of yaw on ...
Ali Gülhan   +3 more
core   +1 more source

Study on Three-Dimensional Inner Flow Field Characteristics and Performance of Scramjet [PDF]

open access: yesMATEC Web of Conferences, 2019
The three-dimensional characteristics and performance of the flow field in the inlet of the scramjet engine were numerically simulated by CFD software. The flow characteristics in the width direction of the inlet and the influence of the aspect ratio on ...
Gao Feng, Zhao Jie, Zhang Cheng Tao
doaj   +1 more source

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