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3 edition of A review of shock waves around aeroassited orbital transfer vehicles found in the catalog.

A review of shock waves around aeroassited orbital transfer vehicles

Chul Park

A review of shock waves around aeroassited orbital transfer vehicles

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  • 30 Currently reading

Published by National Aeronautics and Space Administration, Ames Research Center, For sale by the National Technical Information Service in Moffett Field, Calif, [Springfield, Va .
Written in English

    Subjects:
  • Reusable space vehicles.,
  • Shock waves.

  • Edition Notes

    StatementChul Park.
    SeriesNASA technical memorandum -- 86760.
    ContributionsAmes Research Center.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15281101M

    Shock Wave is a book written by Clive published in , it is the thirteenth book in Cussler's Dirk Pitt series. The events in the book take place between January and March Plot summary. While investigating the deaths of a large number of marine animals, Dirk Pitt and Al Giordino encounter a group of tourists on Seymour the tourists' cruise ship (the Polar. Shock Waves. A slow moving truck drives along the roadway at 10 MPH. The existing conditions on the roadway before the truck enters are shown at point 1 below: 40 mph, flow of vehicles per hour, and density of 25 vehicles per mile. The truck enters the roadway and causes a queue of vehicles to build, giving the characteristics of point 2. In physics, a shock wave (also spelled shockwave), or shock, is a type of propagating disturbance that moves faster than the local speed of sound in the medium. Like an ordinary wave, a shock wave carries energy and can propagate through a medium but is characterized by an abrupt, nearly discontinuous, change in pressure, temperature, and density of the medium.


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A review of shock waves around aeroassited orbital transfer vehicles by Chul Park Download PDF EPUB FB2

A REVIEW OF SHOCK WAVES AROUND AEROASSISTED JRBITAL TRANSFER VEHICLES Chul Park Ames Research Center SUMMARY Aeroassisted orbital transfer vehicles (AOTVs) are a proposed type of reusable spacecraft that would be used to. A review of shock waves around aeroassisted orbital transfer vehicles Aeroassisted orbital transfer vehicles (AOTVs) are a proposed type of reusable spacecraft that would be used to transport cargoes from one Earth-bound orbit to another.

A review of shock waves around aeroassisted orbital transfer vehicles. By C. Park. Abstract. Aeroassisted orbital transfer vehicles (AOTVs) are a proposed type of reusable spacecraft that would be used to transport cargoes from one earth-bound orbit to another.

Such vehicles could be based on the proposed space station and used to transport Author: C. Park. Physics of meteor generated shock waves in the Earth’s atmosphere – A review.

Advances in Space Research, Vol. 62, No. Physico–chemical modelling in hypersonic flow simulation. Thermal Design of Aeroassisted Orbital Transfer Vehicles.

Loading. The dissociating and ionizing nonequilibrium flows behind a normal shock wave are calculated for the density and vehicle regimes appropriate for aeroassisted orbital transfer vehicles; the.

Shock Waves, Vol. 5, No. Flowfield and radiation around an ablating flight model. Heat transfer—a review of literature. International Journal of Heat and Mass Transfer, Vol. 29, No. 12 Thermal Protection Requirements for Near-Earth Aeroassisted Orbital Transfer Vehicle Missions.

American Institute of Aeronautics and Astronautics Sunrise Valley Drive, Suite Reston, VA Key Words: Shock Wave, Supersonic, Hypersonic, Sound, Speed etc 1.

INTRODUCTION For designing aerospace vehicles flying at hypersonic speeds, it is very essential to have a proper understanding of the shock wave propagation and reflection dynamics. In the study of explosions, the blast wave.

[15] Lee J.-H. and White D. R., “ Thermal Design of Aeroassisted Orbital Transfer Vehicles,” Basic Governing Equations for the Flight Regimes of Aeroassisted Orbital Transfer Vehicles, edited by Nelson H.

F., Vol. 96, Progress in Astronautics and Aeronautics, AIAA. Close Drawer Menu Open Drawer Menu Menu. Home; Journals. AIAA Journal; Journal of Aerospace Information Systems; Journal of Air Transportation; Journal of Aircraft; Journal of. Basic governing equations for the flight regimes of aeroassisted orbital transfer vehicles.

1 June ; The basic governing equations for the low-density, high-enthalpy flow regimes expected in the shock layers over the heat shields of the proposed Cancer remains to be one of the leading causes of death in the United States and around.

[Show full abstract] body calculations simulate the windward nose of the Shuttle Orbiter and projected aeroassisted orbital transfer vehicles.

For the slender, blunted configurations, both two. Figure 3. Regions of different physical and chemical processes in the shock layer.

Typical trajectories of various spacecraft: I-Space Shuttle, Buran; II-aero assisted orbital transfer vehicles. [3] Figure 6. Shock Shape for Shuttle Orbiter; V= km/s at altitude= km [11] Figure 8. STS-1 Shuttle Hypersonic Pitch Trim Anomaly [12] Figure 5. A numerical trajectory optimization study of two types of lifting-entry reentry vehicle has been presented at low suborbital speed of km/s and degree entry angle.

These orbital speeds are typical of medium range ballistic missile with ballistic range of approximately km at optimum burnout angle of approximately 41 degree for maximum ballistic range.

A shock wave is a surface of discontinuity propagating in a gas at which density and velocity experience abrupt changes. One can imagine two types of shock waves: (positive) compression shocks which propagate into the direction where the density of the gas is a minimum, and (negative) rarefaction waves which propagate into the direction of maximum density.

Park, “Rotational Relaxation of N2 behind a Strong Shock Wave,” Journal of Thermophysics and Heat Transfer, Vol. 18, No. 4,pp. doi/ C. Park, “Problems of Rate Chemistry in the Flight Regimes of Aeroassisted Orbital Transfer Vehicles,” AIAA PaperThe computed peak electron number density on a sphere-cone was compared to that measured in a flight test.

In each case the results from the numerical method were in excellent agreement with experiment. The technique was used to predict the aerothermal loads on an Aeroassisted Orbital Transfer Vehicle including radiative heating. Park, “Problems of rate chemistry in the flight regimes of aeroassisted orbital transfer vehicles,” Thermal Design of Aeroassisted Orbital transfer vehicles, Progress in Astronautics and Aeronautics, Vol.

96 (AIAA, Washington, DC, ), p. Google Scholar; T. A REVIEW OF BALLUTE TECHNOLOGY FOR PLANETARY AEROCAPTURE Jeffery L. Hall A ballute is an inflatable device used to increase the drag of the vehicle to which it is attached.

As such, the ballute combines features from the two devices that give it its name: the Cocoon ballutes for aeroassisted orbital transfer vehicles at Ref. Inoue Y, Hayashi AK () Numerical analysis of chemical reactive flows around injection jet into a hypersonic flow.

In: Proceedings of the 18th ISTS Google Scholar Lee JH () Basic governing equations for the flight regimes of aeroassisted orbital transfer vehicles. The chemically reacting gas flow around the orbital vehicle was simulated for actual reentry trajectories, with a computational solver based on the Navier–Stokes–Fourier equations.

Shock-wave representation (Fig. a) is called nonunique if the wave (i.e., a discontinuity satisfying the Rankine-Hugoniot relations at its front) can be represented by other gasdynamic discontinuities—two shock-waves 3 (Fig.

c,d) or a shock-wave and a rarefaction wave (Fig. b,e). Hereafter, all the waves constituting these. In order to extend the existing approach of computing ionized flows about reentry spacecraft by the Direct Simulation Monte Carlo (DSMC) method, an ionized shock layer in a rarefied gas flow around a reentry vehicle is considered.

The effect of various physical processes on the distribution of the electron temperature in the shock layer is analyzed by evaluation of the relevant.

Summary. The HEG (H igh E nthalpy Tunnel in G öttingen) has recently been equipped with a new conical nozzle, in order to improve its usability for various test to that, a test series with spherical models was performed.

Of particular interest in the course of the presented studies for the nozzle was the spatial and temporal extent of „steady“ conditions in the test flow. High temperature chemical non-equilibrium phenomena have a great effect on the flow field around a reentry vehicle.

A set of three dimensional Navier-Stokes equations have been solved by implicit finite volume NND scheme. Chemical nonequilibrium effects on flowfields for aeroassisted orbital transfer vehicles.

() Chemical. A method that provides advance information about unpredictable atmospheric density dispersions that must be accommodated during random operations of aeroassisted orbital transfer vehicles (AOTVs.

Park, C.: Problems of rate chemistry in the flight regimes of aeroassisted orbital transfer vehicles. In: Nelson, H.F.

(ed.) Progress in Astronautics and Aeronautics: Thermal Design of Aeroassisted Orbital Transfer Vehicles. AIAA, America () Google Scholar. The carrier then returns to the spaceport. These concepts allow the orbital upper stage to be much lighter, than a SSTO.

Typical TSTO is the Virgin Galactic Space Ship One (and Two). Although it is not an orbital vehicle, but the X demonstrates the concept of a MSTO vehicle, pictured in Fig. See Chapter for the description of these.

A self-consistent calculation model of hypersonic fluid and electromagnetic wave (EM) propagation around a vehicle was used for radio frequency (RF) blackout prediction. First, the plasma flow arou. This paper reviews the recent work and discusses the remaining technical issues and Cocoon ballutes for aeroassisted orbital transfer vehicles at Earth.8,9,10 Ref.

10 concluded can be particularly important given the likelihood for unsteady shock waves and vortex shedding associated with the flow around ballutes.

Thermodynamically nonequilibrium airflow past blunt bodies at high supersonic velocities is investigated with allowance for nonequilibrium dissociation and recombination reactions, vibrational-dissociative interaction and the reciprocal effect of the reactions on vibrational relaxation.

Simplified Navier-Stokes equations, which take into account the structure of the viscous shock, are used for. A computational fluid dynamics (CFD) technique is employed to study hypersonic high-enthalpy air flows around blunt bodies with the purpose of predicting convective heat transfer on the body surface for a range of flow velocities relevant to suborbital flight of re-entry vehicles such as the Space Shuttle Orbiter (USA), and the Buran (Russia).

A new bulk viscosity model derived from the Boltzmann–Curtiss distribution is employed for shock structure and temperature profile under translational and rotational nonequilibrium.

Numerical simulations of argon and nitrogen shock profiles are performed in the Mach number range of –9. Aeroassisted orbital transfer vehicles (AOTVs) and HSTs fly hypersonically at altitudes higher than those of Apollo and Space Shuttle type, whose flowfield could be considered a continuum with.

A numerical simulation model of plasma flows and electromagnetic waves around a vehicle was developed to predict a radio frequency blackout. Plasma flows in the shock layer and the wake region were calculated using a computational fluid.

A review of the new initiatives at the NASA Ames Research Center: a history of Ames Research Center, by Elizabeth A Muenger (Book) Adventures in research: a history of Ames Research Center, by Edwin Phelps A review of shock waves around aeroassisted orbital transfer vehicles by Chul Park. Behind the shock wave, in general, our simulation results of mass C.

ParkProblem of rate chemistry in the flight regimes of aeroassisted orbital transfer vehicles. Prog Astronaut Aeronaut, 96 (), pp. Yosn J. A review of reaction rates and thermodynamic and transport properties for the species air model for chemical and.

Measurement of the velocity history resulting from the stress wave interaction event is provided by VISAR recording at the interface between the back of the ceramic and a PMMA window.

Shock wave interaction within the boron carbide sample leads to spall fracture. The spall signal is observed in the velocity recording shown in figure   The high enthalpy nozzle converts the high enthalpy stagnation gas into the hypervelocity free flow.

The flow region of the high enthalpy nozzle consists of three parts: an equilibrium region upstream of the throat, a non-equilibrium region near the throat, and a frozen region downstream of the throat. Here we propose to consider the thermochemical non-equilibrium scale effects in the high.

An illustration of an open book. Books. An illustration of two cells of a film strip. that the existence of a Large Cargo Vehicle and a variety of aggressive mission models would have on the preferred Orbital Transfer Vehicle Program.

Addeddate There are no reviews yet. Be the first one to write a review. The present code is validated by the existing flight experimental data and the numerical results of the ELECTRE vehicle. The velocity of the vehicle at the altitude ranging from 60 to 20 km would lie approximately within – km/s, respectively, with a nearly constant Mach number about 13 and an angle of attack in between of 1° and 3°.The geometrical sketch of the ELECTRE vehicle is.When a shock wave reaches an observer a "sonic boom" is heard.

[insert N-wave discussion] Unlike ordinary sound waves, the speed of a shock wave varies with its amplitude. The speed of a shock wave is always greater than the speed of sound in the fluid and decreases as the amplitude of the wave decreases. When the shock wave speed equals the.Recently, there have been significant advances in the fields of high-enthalpy hypersonic flows, high-temperature gas physics, and chemistry shock propagation in various media, industrial and medical applications of shock waves, and shock-tube technology.

This series contains all the papers and.