Combined energy–power action on a source in the constant Mach number regime with the given external force
Combined action on a source that flows into a submerged area or vacuum in the constant Mach number regime has been studied. The action by an external force has been defined with a constant distribution function (the force is given per unit volume) and with a distribution function proportional to the...
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Published in | Technical physics Vol. 62; no. 2; pp. 208 - 217 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
Moscow
Pleiades Publishing
01.02.2017
Springer Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | Combined action on a source that flows into a submerged area or vacuum in the constant Mach number regime has been studied. The action by an external force has been defined with a constant distribution function (the force is given per unit volume) and with a distribution function proportional to the gas density (the force is given per unit mass). The investigations have been carried out for cylindrical and spherical sources. Similarity and differences, advantages and drawbacks of the above-mentioned cases and variants have been analyzed. It has been shown that the enthalpy increases significantly in subsonic flow (for the Mach number smaller than unity) by several times in the cylindrical source and by more than an order of magnitude in the spherical source. The total enthalpy increment increases with the length of the action zone or with the coordinate of the closing section. |
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ISSN: | 1063-7842 1090-6525 |
DOI: | 10.1134/S1063784217020177 |