Results 111 to 120 of about 22,114 (235)

DLR-ONERA accurate CFD support for the Pre-X project

, 2005
During the development of Pre-X demonstrator supported by CNES , industrials are in charge of aerodynamic and aerothermodynamic defintion and characterisation of the vehicle.
Spel, M., Lüdeke, H., Hylkema, J., Dieudonne, W., Thivet, F., Longo, J.M.A., Oswald, J.   +6 more
core  

Damping of the Second Mode Instability on a Cone in Hypersonic Flow

, 2011
This paper presents the results of transition experiments with a 3° half angle cone at Mach 6. The transition position was measured with an infrared camera and simultaneously the pressure fluctuations in the boundary layer with high speed pressure ...
Gülhan, Ali, Willems, Sebastian
core  

Comparison and Analysis of Chemical Models, methodologies and parameters in Hypersonic Rarefied Flows

, 2011
The aim of the present thesis is the study of some problems of hypersonic rarefied Aerodynamics. More specifically the subjects here considered are: a) Development of a new parameter to detect non-equilibrium region.
Morsa, Luigi
core  

Transitional shock wave/boundary-layer interaction unsteadiness on a cone-flare in hypersonic flow

The causes of unsteadiness in hypersonic, axisymmetric, and transitional shock wave/boundary-layer interactions (SWBLIs) are investigated experimentally using a cone-flare model in the Oxford High Density Tunnel (HDT). The motivation of this research was
Hembling, Eric
core   +1 more source

Orbital delivery of small payloads using hypersonic airbreathing propulsion

, 2006
Scramjet engines promise significantly higher specific impulse than rockets during the hypersonic phase of low earth orbit insertion trajectories. Despite this, scramjets are not used on any current systems, due to the difficulty of operating over the ...
Smart, M., Smart, M K, Tetlow, M., Tetlow, M R   +3 more
core  

Dynamic Stability of Mission Oriented Hypersonic Waveriders

, 1999
The longitudinal dynamic stability characteristics of a caret-wing/wedge (CWW) waverider, without engine integration, is explored. Hypersonic piston theory is used to derive analytical stability derivatives and coefficients.
Lael Voneggers Rudd, Hypersonic Waveriders, Christopher Tarpley, Mission-oriented Hypersonic Waveriders, Darryll J, Darryll J. Pines   +5 more
core  

johannespletzer/rf-of-hypersonic-trajectories: Estimate radiative forcing of hypersonic emissions on route network level

<h2>Overview of updates</h2> <p>Recent changes include the following</p> <ul> <li>Read-in of netCDF files now allows to estimate radiative forcing on route network level</li> <li>An example for netCDF files
Mattia Righi, Johannes Pletzer
core   +1 more source

Research on Star Sensor Imaging Simulation Under Near-Space Hypersonic Non-Equilibrium Flow Conditions. [PDF]

Sensors (Basel)
Liao Z, Wang H, Cheng X, Liu B, Zang Y, Lu Y, Yao S, Yan Z.   +7 more
europepmc   +1 more source

Some consequences of non-local-equilibrium in hypersonic aerodynamic flows

, 2005
In simulating high-speed, high-altitude aerodynamics it is important to be able to capture physical phenomena that are due to the non-local-equilibrium nature of the rarefied gas flow (this is in addition to any effects due to dissociation, ionisation ...
Greenshields, Christopher, Reese, Jason
core  

Hypersonic levitation and spinning: paving the way for enhanced single-cell analysis via contactless tissue dissociation. [PDF]

Commun Eng
Bai Y, Zheng Z, Nie Z, Li J, Zhang Z, Duan X.   +5 more
europepmc   +1 more source