The Properties of Gas Flows for Different Flow Conditions Through Laval Nozzles

Gerasimov, A. P.; Ivanov, V. P.; Krasavin, V. M.; Lakhov, V. M.; Rainchik, S. V.; Semenova, O. K.

doi:10.1007/s11018-005-0151-8

Cited by 5 publications

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“…The air flow deflects after passing through the feature line AB, and the deflection angle is determined by equation (7).…”

Section: And the Obtainedmentioning

confidence: 99%

“…Moreover, Gerasimov et al. 7 analyzed the corresponding numerical values of the nozzle distribution uniformity in detail, which provided the possibility of effectively solving the problems involved in designing instruments for measuring air flow velocity and their metrological facilities. Rim et al.…”

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confidence: 99%

“…Next Tan et al 6 introduced some foreign fiber sorters and found that the removal effect of one inlet and four outlets was the optimal. Moreover, Gerasimov et al 7 analyzed the corresponding numerical values of the nozzle distribution uniformity in detail, which provided the possibility of effectively solving the problems involved in designing instruments for measuring air flow velocity and their metrological facilities. Rim et al 8 evaluated the effects of nozzle distribution, nozzle spacing, and pipe spacing on the ejection characteristics, and proved that the nozzle distribution has a significant influence on the velocity.…”

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Design optimization and flow field analysis of the nozzle structure of a foreign fiber sorter

Yu-hong

Yuan

2022

Textile Research Journal

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With the purpose of solving the problems of uneven velocity and energy loss of the foreign fiber sorters, this paper has analyzed the nozzle distribution and structure in the foreign fiber sorting system, and presented the design of a nozzle with the circular distribution contraction–expansion structure. The turbulent kinetic energy was optimized through a circular distribution of the nozzle to improve nozzle velocity uniformity, according to the effect of air flow on wall surface distance. Meanwhile, the nozzle was optimized with the contraction–expansion structure based on the relationship between the Mach number and the nozzle’s cross-sectional area. The stepped cross-section of the nozzle was replaced by a transition curve cross-section to restrain the sudden change of the air flow velocity in the nozzle. The optimized nozzle structure was discussed in terms of the velocity, the pressure, and the energy loss. It was found that the velocity increases by 9.2%, the required pressure decreases, and the energy loss decreases. So the effectiveness and practicability of the proposed method were illustrated.

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“…The air flow deflects after passing through the feature line AB, and the deflection angle is determined by equation (7).…”

Section: And the Obtainedmentioning

confidence: 99%

mentioning

confidence: 99%

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confidence: 99%

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