Assessment of the jet rectifier shape influence on the hydraulic resistance and flow homogeneity coefficients in a circular channel
Authors: Nechiporuk S.Yu., Gusev S.V., Arefiev K.Yu., Zakharov V.S.
Published in issue: #8(164)/2025
Category: Aviation and Rocket-Space Engineering | Chapter: Thermal, Electric Jet Engines, and Power Plants of Aircrafts
The paper presents results of studying the jet rectifier main geometric parameters influence on the jet hydraulic resistance ξ and homogeneity ζ coefficients. Those jet parameters included dimensions of the through holes, and lengths and shapes of the jet rectifier constituent elements considered in GOST 8.586.1–2005. The study was performed using the numerical simulation methods. The mathematical model was assessed by applying the experimental data presented in GOST 8.586.1–2005. A series of numerical computations to determine the ξ and ζ values were conducted under the specified boundary conditions and the flow non-uniformity degree. For each jet rectifier, the optimal geometric parameters were determined in terms of minimizing the hydraulic resistance coefficient and increasing the flow uniformity coefficient. Based on the results of comparing the ξ and ζ coefficients for the presented jet rectifiers, a jet rectifier was selected that ensured formation of a uniform flow with the lowest hydraulic losses.
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