Studies of the effects of curvature on dilution jet mixing

Journal Article · Sat Feb 01 00:00:00 EST 1992 · Journal of Propulsion and Power; (United States)

DOI:https://doi.org/10.2514/3.23462· OSTI ID:5577564

Holdeman, J D; White, C D ^[1]

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1. NASA, Lewis Research Center, Cleveland, OH (United States) Allied-Signal Aerospace Co., Phoenix, AZ (United States)

An analytical program was conducted using both three-dimensional numerical and empirical models to investigate the effects of transition liner curvature on the mixing of jets injected into a confined crossflow. The numerical code is of the TEACH type with hybrid numerics; it uses the power-law and SIMPLER algorithms, an orthogonal curvilinear coordinate system, and an algebraic Reynolds stress turbulence model. From the results of the numerical calculations, an existing empirical model for the temperature field downstream of single and multiple rows of jets injected into a straight rectangular duct was extended to model the effects of curvature. Temperature distributions, calculated with both the numerical and empirical models, are presented to show the effects of radius of curvature and inner and outer wall injection for single and opposed rows of cool dilution jets injected into a hot mainstream flow. 27 refs.

• OSTI ID: 5577564
• Journal Information: Journal of Propulsion and Power; (United States), Vol. 8; ISSN 0748-4658
• Country of Publication: United States
• Language: English

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