Magnetohydrodynamic-Hypersonic Flow Past a Blunt Body

Bush, William B.

doi:10.2514/8.7845

Cited by 163 publications

(23 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This work focuses on the previously mentioned experiment conducted by Kranc et al [10], which was similar to the semianalytical research conducted by Bush [4,5]. Bush's computational work was previously explored computationally by Gaitonde and Poggie [41,43] and Gaitonde [42].…”

Section: Nomenclature Bmentioning

confidence: 91%

Numerical Study of Magnetoaerodynamic Flow Around a Hemisphere

Bisek

Boyd

Poggie

2010

48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition

View full text Add to dashboard Cite

Newly developed computational tools are used to compute hypersonic flow around a hemisphere cylinder that uses a magnet located within the body as a means of heat flux mitigation. These tools include an improved electrical conductivity model and a parallelized three-dimensional magnetohydrodynamic module that is loosely coupled to a three-dimensional fluid code. Several electrical conductivity models are explored for a range of magnetic field strengths. Results show the shock standoff distance increases when the magnetic field is applied, but the distance is highly dependent on the conductivity model selected. The increase in shock standoff distance reduces the gradients in the shock layer, thereby reducing the peak heat flux to the body. However, the total heat flux slightly increases due to additional heating to the aft section of the geometry.

show abstract

Section: Nomenclature Bmentioning

confidence: 91%

Numerical Study of Magnetoaerodynamic Flow Around a Hemisphere

Bisek

Boyd

Poggie

2010

48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition

View full text Add to dashboard Cite

show abstract

“…With self-consistent calculation of the electrical conductivity, as already observed in the boundary layer theory of Bush [96], the effectiveness of magnetic control is strongly reduced. MHD effects on plasma flow are almost absent for Mach number M∞<16.…”

Section: Mhd Effect On a Chemical Reacting Gasmentioning

confidence: 95%

Radiative Aerothermodynamics of Entering Space Vehicles: Toward the Use of State-to-State Approach

Суржиков¹,

Reynier²,

Seller³

et al. 2014

TOPPJ

View full text Add to dashboard Cite

Modern problems of radiative aerothermodynamics of entering space vehicles are demonstrated and analyzed in the paper. New radiative gas dynamic problems concerned to coupling processes of non-equilibrium dissociation with radiation heat transfer in shock layers generated above large scale re-entry space vehicles returning from orbital and super orbital space mission are considered in the first part.Three-dimensional numerical simulation data on radiative aerothermodynamics of Martian entry probes Pathfinder, Exomars and Mars Science Laboratory (MSL) are presented and analyzed in the second part. It is shown that integral radiative heating of leeward surface of the entry probes exceeds corresponding convective heating.The third part is dedicated to consideration preliminary numerical simulation results on radiative gas dynamics of Galileo probes. At first, a review of the available results obtained during the mission preparation and post-flight analyses has been undertaken to select a computational matrix. This matrix has been selected by accounting for previous numerical efforts from the literature to crosscheck the results. Then, a model based on previous efforts has been set up for computing the flow-field around the probe at high altitude. Finally the test case matrix has been computed and crosschecked with existing numerical predictions performed.Some possibilities of innovative magneto-hydrodynamic (MHD) technologies being applied to solve problems of re-entry vehicles heat protection are discussed in the fourth part.All presented data demonstrate necessity of further development of the radiative aerothermodynamics based on state-tostate approaches.

show abstract

“…The use of a magnetic field to manipulate the shock layer for a re-entry vehicle was proposed as a possible method for increasing drag of planetary entry vehicles as early as the late 1950s [1,2]. Whilst the field of magnetohydrodynamics (MHD) is well established, its application to planetary entry vehicles remains largely untested.…”

Section: Introductionmentioning

confidence: 99%

Magnetohydrodynamic Drag Force Measurements in Expansion Tubes using an Accelerometer

Smith¹,

Gildfind²,

James³

et al. 2019

Proceedings of the 32nd International Symposium on Shock Waves (ISSW32 2019)

View full text Add to dashboard Cite

This paper demonstrates the use of an accelerometer force balance for taking magnetohydrodynamic drag force measurements in expansion tubes, with the purpose of developing the experimental capability for future magnetohydrodynamic studies. The expansion tube was chosen as it provides the unique ability to generate high enthalpy flows representative of planetary entry, where the freestream is not ionised. However, this comes with the caveat that expansion tube test flows have relatively short duration. The X2 and X3 facilities at the University of Queensland have been used, for which test times are of the order of 50 µs to 100 µs and 500 µs to 1000 µs respectively. Results indicate that when using accelerometers to measure MHD drag in flows of less than 100 µs, flow unsteadiness must be considered in the interpretation of the results. It is likely, based on these measurements, that the cause of flow unsteadiness in the first 100 µs is either due to the presence of the magnetic field itself, or some unsteady flow parameter which is currently not measured.

show abstract

Magnetohydrodynamic-Hypersonic Flow Past a Blunt Body

Cited by 163 publications

References 3 publications

Numerical Study of Magnetoaerodynamic Flow Around a Hemisphere

Numerical Study of Magnetoaerodynamic Flow Around a Hemisphere

Radiative Aerothermodynamics of Entering Space Vehicles: Toward the Use of State-to-State Approach

Magnetohydrodynamic Drag Force Measurements in Expansion Tubes using an Accelerometer

Contact Info

Product

Resources

About