Effects of Ionization on Stagnation-Point Heat Transfer in Air and in Nitrogen

Pallone, A.; Tassell, William Van

doi:10.1063/1.1706855

Cited by 18 publications

(10 citation statements)

References 6 publications

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“…The direct interaction between a dense plasma and a solid body is treated to some degree in studies related to the atmospheric reentry of space vehicles [1][2][3][4][5]*. Description of the heat transfer in these cases is effected by dimensionless heat transfer parameters [6].…”

Section: The Effect Of Ionization On Heat Transfer To Wires Immersed mentioning

confidence: 99%

The effect of ionization on heat transfer to wires immersed in a highly thermallyionized plasma

Pétrie

Pfender

1972

Wärme- und Stoffübertragung

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Results obtained with a previously developed technique for measuring local heat transfer to bare and ceramic coated metal wires from a dense, highly thermallyionized plasma are presented and compared with theoretical predictions. A free-burning arc in argon at atmospheric pressure provides a plasma in local thermodynamic equilibrium. Wire probes are swept through this plasma in planes parallel to the anode. The wires do not draw a net current from the plasma. Experimental evidence indicates that the layer between the undisturbed plasma and the probe surface is not in chemical equilibrium. The data show that heat transfer . to the wire in this situation is dominated by the energy transport associated with electron and ion partial currents to the probe surface as determined by the potential of the probe with respect to the plasma. The data obtained using this technique provide an experimentally verified model for the heat transfer to wires immersed in a plasma over a wide range of plasma conditions including a 100 percent variation in the degree of ionization.

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Section: The Effect Of Ionization On Heat Transfer To Wires Immersed mentioning

confidence: 99%

The effect of ionization on heat transfer to wires immersed in a highly thermallyionized plasma

Pétrie

Pfender

1972

Wärme- und Stoffübertragung

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“…On this basis, by estimating the collision cross section he arrived at the following rate for the forward process, -13- e-l 6 9,000/T -2 ion…”

Section: S---= Flowmentioning

confidence: 99%

Stagnation point heat transfer measurements in partially ionized air

Rose

Stankevics

1963

AIAA Journal

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“…Control accuracy can be affected, however, by diffusion of the working fluid or by mass transfer from the condenser into the reservoir. 4 While diffusion between the condenser and reservoir can be controlled by using a capillary isolation tubing for some applications, sizing based on diffusion is inadequate to prevent the dynamic mass transfer which may accompany equipment or environment mission duty cycles. 5 ' 6 Analytical techniques have been proposed which predict the change in thermal control associated with changes in the external thermal environment, in the heat input to the heat pipe, or with changes such as those which would accompany space radiator degradation.…”

Section: Discussionmentioning

confidence: 99%

“…No such data correlation has been completed for the superorbital velocity regime although a number of theoretical formulations are available, i.e., Hoshizaki, 2 Fay and Kemp, 3 and Pallone and VonTassell. 4 In the present study, published experimental stagnationheating-rate data have been compiled. The data include both the suborbital and superorbital velocity regimes.…”

Section: Introductionmentioning

confidence: 99%