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Isolated fluid oxygen drop behavior in fluid hydrogen at rocket chamber pressures

Harstad, K. and Bellan, J. (1998) Isolated fluid oxygen drop behavior in fluid hydrogen at rocket chamber pressures. International Journal of Heat and Mass Transfer, 41 (22). pp. 3537-3550. ISSN 0017-9310. doi:10.1016/S0017-9310(98)00049-0.

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A model has been developed for the behavior of an isolated fluid drop of a single compound immersed into another compound in finite, quiescent surroundings at supercritical conditions. The model is based upon fluctuation theory which accounts for both Soret and Dufour effects in the calculation of the transport matrix relating molar and heat fluxes to the transport properties and the thermodynamic variables. The transport properties have been modeled over a wide range of pressure and temperature variation applicable to LO_x–H_2 conditions in rocket chambers, and the form of the chemical potentials is valid for a general fluid. The equations of state have been calculated using a previously-derived, computationally-efficient and accurate protocol. Results obtained for the LO_x–H_2 system show that the supercritical behavior is essentially one of diffusion. The temperature profile relaxes fastest followed by the density and lastly by the mass fraction profile. An effective Lewis number calculated using theory derived elsewhere shows that it is larger by approximately a factor of 40 than the traditional Lewis number. The parametric variations show that gradients increasingly persist with increasing fluid drop size or pressure, and with decreasing temperature. The implication of these results upon accurate measurements of fluid drop size under supercritical conditions is discussed.

Item Type:Article
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Bellan, J.0000-0001-9218-7017
Additional Information:© 1998 Elsevier Science Ltd. Received 7 May 1997.
Issue or Number:22
Record Number:CaltechAUTHORS:20171025-073649264
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Official Citation:K. Harstad, J. Bellan, Isolated fluid oxygen drop behavior in fluid hydrogen at rocket chamber pressures, In International Journal of Heat and Mass Transfer, Volume 41, Issue 22, 1998, Pages 3537-3550, ISSN 0017-9310, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:82640
Deposited By: Tony Diaz
Deposited On:25 Oct 2017 14:44
Last Modified:15 Nov 2021 19:52

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