Diagnostic Investigation of Flame Spread Mechanism in Dual-thrust Solid Propellant Rocket Motors

Ajith, S.; Mani, Sivabalan; Tharikaa, R.; Doddi, Hemasai Nagaraju; Kumar, VR Sanal

doi:10.2514/6.2015-4226

Cited by 3 publications

(1 citation statement)

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“…where For the high Reynolds number form of the k-ω model, a * = a * ∞ = 1. Ω ij is the average rate of rotation tensor and the blending functions, F 1 and F 2 , are given by [18,22,23]:…”

Section: Effective Diffusivity Modelmentioning

confidence: 99%

The effects of structural parameters on tangentially injected highly swirling turbulent tube air flow

2019

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In the textile industry, air-jet nozzles known as Jetring, Nozzlering, Compact-jet and Siro-jet are used for the final spinning of the yarn. The air flow, which determines the yarn quality and other yarn properties, depends on the flow parameters such as pressure, mass flow rate, and the structural parameters of the air jet nozzle which acting on the flow parameters. In this study, SST turbulence model was selected and 225 kPa (absolute) total pressure was applied to the nozzle injectors. Approximately 2,500,000 tetrahedral elements are used for any geometry in the mesh prepared for parametric study. All parameters solved in ANSYS CFX 18.0 with used parametric study. The structural parameters were subjected to parametric CFD analysis and different flow parameters such as mass flow, swirling number, geometric swirling number, Reynolds number, vorticity, helicity real eigen, velocity, velocity w (z-axis velocity, i.e. twisting chamber axis), total pressure, flow pressure were compared.

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Section: Effective Diffusivity Modelmentioning

confidence: 99%