Double-diaphragm shock tube at the Ioffe Physicotechnical Institute

Maslennikov, V. G.; Sakharov, V. A.

doi:10.1134/1.1258870

Cited by 9 publications

(2 citation statements)

References 3 publications

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“…Measuring the heat flux to the surface of a body flown by a high-enthalpy gas flow is the basic diagnostics in an aerophysical experiment, since it allows one to obtain an integral characteristic of heat transfer processes in the shock layer [1][2][3]. Under the conditions of a groundbased experiment, a fairly complete reproduction of the conditions of a real high-speed flight is possible only on pulsed gasdynamic facilities with an operating time of ∼ 1−10 ms [1,2,4,5]. Therefore, the main requirements for thermal sensors are high speed ∼ 1 µs with a total recording duration of ∼ 10 ms and a measurement range from ∼ 100 kW/m 2 to ∼ 10 MW/m 2 .…”

Section: Introductionmentioning

confidence: 99%

Non-stationary heat flux measurement in shock tube experiments using sensors based on anisotropic bismuth thermoelements

et al. 2022

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An analysis of main features of unsteady heat flux measuring in shock tubes experiments with a characteristic process time of ~1 μs-1 ms using sensors based on anisotropic bismuth thermoelements is made. The heat flux behind the reflected shock wave and at the blunt body stagnation point has been measured. Testing of the heat flux calculation method was carried out. The difference between the experimental data and the theoretical value of the heat flux does not exceed 50%. The possible reasons influencing the magnitude of measurement uncertainty are analyzed. The experiments performed have shown the applicability of a sensor based on anisotropic thermoelements and the method for calculating the heat flux from its electrical signal for typical conditions of experiments on shock tubes. Keywords: heat flux, shock tube, measurements, anisotropic thermoelement, ghfs.

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Section: Introductionmentioning

confidence: 99%

Non-stationary heat flux measurement in shock tube experiments using sensors based on anisotropic bismuth thermoelements

et al. 2022

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“…The experiments were carried out using the equipment designed on the basis of the Big Shock Tube (BST) at the Ioffe Institute [3]. A layout of the experimental setup is shown in The high-pressure chamber of the BST filled in with hydrogen is separated from the low-pressure channel by a metallic diaphragm.…”

Section: Methodsmentioning

confidence: 99%

MHD Control of the Separation Phenomenon in a Supersonic Xenon Plasma Flow

Bobashev¹,

Mende²,

Sakharov³

et al. 2003

41st Aerospace Sciences Meeting and Exhibit

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Experimental investigation of the thermal loads upon electrodynamic modification of supersonic flow around axisymmetrical body

Попов

Monakhov

Kotov

et al. 2020

IOP Conf. Ser.: Mater. Sci. Eng.

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The results of experimental studies of the magnetohydrodynamic (MHD) effect on the flow around an axisymmetric model of a supersonic nitrogen stream are presented. The magnetic field was created by a solenoid located on the cylindrical part of the model under the influence of a pulsed electric current flowing through the solenoid. A pulsed gas discharge was ignited on the conical surface of the model, acquiring rotation in the solenoidal magnetic field around the model axis. The effect of the magnetic field on the gas-dynamic structure of the flow near the model and the heat flux to its surface were investigated. In the experiments, schlieren pictures,fast photographic scans of the discharge glow were recorded, and heat flux was measured. The effect of a magnetic field on the gasdynamic structure of the flow near the model and the heat load to its surface were found. Also, the dependence of MHD effects on the polarity of external voltage source connecting was found.

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Double-diaphragm shock tube at the Ioffe Physicotechnical Institute

Cited by 9 publications

References 3 publications

Non-stationary heat flux measurement in shock tube experiments using sensors based on anisotropic bismuth thermoelements

Non-stationary heat flux measurement in shock tube experiments using sensors based on anisotropic bismuth thermoelements

MHD Control of the Separation Phenomenon in a Supersonic Xenon Plasma Flow

Experimental investigation of the thermal loads upon electrodynamic modification of supersonic flow around axisymmetrical body

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