Concept
Hypersonic flight
Related publications (10)
Experimental investigation of surface roughness effect on a free-flight sphere in a Ludwieg tube
Understanding the aerodynamic coefficients of meteoroid fragments, deorbiting space debris, or launch vehicle stages through atmospheric reentry is essential for ground risk assessments. In high enthalpy flow, surface roughness is a crucial factor affectin ...
KOREAN SOC MECHANICAL ENGINEERS2022Effect of Ag Addition on the Hot Deformation, Constitutive Equations and Processing Maps of a Hot Extruded Mg-Gd-Y Alloy
Hot deformation behavior of the extruded Mg-6Gd-3Y (GW63) and Mg-6Gd-3Y-1Ag (GW63-1Ag) alloys was assessed by shear punch testing (SPT) method in the temperature range of 623 K to 723 K and shear strain rate of 1.6 x 10(-2)to 1.3 x 10(-1) s(-1). Microstruc ...
SPRINGER2020Flowfield Reconstruction Method Using Artificial Neural Network
Multi-dimensional aerodynamic database development has become more and more impor- tant for the design, control and guidance of modern aircrafts. In order to relieve the curse of the dimensionality, we propose a novel flow field reconstruction method based ...
2018The effects of radiation on ablative heat shields during atmospheric entry
Spacecraft employ composite materials as Thermal Protection Systems (TPS) to survive entering a planetary atmosphere at hypersonic speeds. Under intense convective and radiative heating from the surrounding shock layer, these composites decompose and erode ...
EPFL2017Numerical rebuilding of Expansion Tunnel Ablation Testing in terrestrial entry conditions
As part of the understanding of radiative coupling phenomena with ablation phenom- ena for hypersonic re-entry of Hayabusa or Stardust type of capsules, laboratory tests are very important. Only expansion tubes can reproduce flight conditions at these spee ...
2016Ablation-Radiation Coupling Modelling for Hayabusa Re-entry Vehicle
Reentry vehicles undergo extreme thermal conditions as they reach hypersonic velocities in particular conditions. Thus thermal protection system (TPS) are required to prevent the probe to be damaged. When it comes to Earth’s reentry, capsules like Hayabusa ...
2013Experimental Investigation of Pulsed Dielectric Barrier Discharge Actuators in Sub- and Transonic Flow
Christoph Hollenstein, Peter Ott, Pénélope Leyland, Philip Peschke, Sami Goekce
Experiments were conducted in order to investigate the ability of nanosecond pulsed dielectric barrier discharge (ns-DBD) actuators to control flow on airfoils in subsonic and transonic flow (up to Ma1 = 0.75, Re = 1.35 • 10^6). A NACA 0015 profile equippe ...
The American Institute of Aeronautics and Astronautics2013Highly loaded compressor with boundary layer suction
An experimental and numerical investigation of boundary layer suction (BLS) on a transonic compressor blade has been conducted. The objective of the present work is to identify the possible benefit of boundary layer suction via a slot in the region of the ...
EPFL2005Large-eddy simulation of the shock/boundary layer interaction
Bidimensional interaction of an oblique shock with a plane plate has been studied numerically using large eddy simulation (LES) and compared with experimental data. This case represents an idealized model of bidimensional air intake and constitutes a chall ...
2002Large eddy simulation of shock/boundary layer interaction
Bidimensional interaction of an oblique shock with a plane plate has been studied numerically using large eddy simulation (LES) and compared with experimental data. This case represents an idealized model of bidimensional air intake and constitutes a chall ...
2001