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Kucherov A.N.,Prof N E Zhukovskii Central Aerohydrodynamic Institute
Journal of Engineering Physics and Thermophysics | Year: 2014

We have investigated the fl ow regions of the vortex-source combination with a constant pressure established due to the specially chosen intensity distribution of the energy exchange sources (heat input and heat removal) in the space of similarity parameters initial coordinate (temperature)–gas circulation–length of the energy exchange zone. Regions in which a thermal crisis is realized and steady fl ow choking occurs have been determined. We have constructed boundaries of the thermal crisis regions in the following cases of vortex-source combination outflow: into a vacuum, from a rarefied space, into a submerged space or from a submerged space. © 2014, Springer Science+Business Media New York. Source


Karavosov R.K.,Prof N E Zhukovskii Central Aerohydrodynamic Institute | Prozorov A.G.,Prof N E Zhukovskii Central Aerohydrodynamic Institute
Journal of Engineering Physics and Thermophysics | Year: 2012

We have investigated the spectra of pressure pulsations in the near field of the open working section of the wind tunnel with a vortex flow behind the tunnel blower formed like the flow behind the hydroturbine of a hydraulic power plant. We have made a comparison between the measurement data for pressure pulsations and the air stream velocity in tunnels of the above type and in tunnels in which a large-scale vortex structure behind the blower is not formed. It has been established that the large-scale vortex formation in the incompressible medium behind the blade system in the wind tunnel is a source of narrow-band acoustic radiation capable of exciting resonance self-oscillations in the tunnel channel. © 2012 Springer Science+Business Media, Inc. Source


Paderin L.Y.,Prof N E Zhukovskii Central Aerohydrodynamic Institute | Prusov B.V.,Prof N E Zhukovskii Central Aerohydrodynamic Institute | Tokarev O.D.,Prof N E Zhukovskii Central Aerohydrodynamic Institute
Journal of Engineering Physics and Thermophysics | Year: 2010

We present a computational-experimental method and the results of investigating the influence of transparence to solar radiation of the heat-resistant coating on the thermal regime of the space-vehicle construction in orbital flight. © 2010 Springer Science+Business Media, Inc. Source

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