Numerical Simulation of Flow and Heat Transfer in Round-to-Rectangular Nozzles

Autor:	Jun-Wei Li, Yu Liu, Lizi Qin
Rok vydání:	2007
Předmět:	Convection Numerical Analysis Regenerative cooling Materials science Nozzle Thermodynamics Mechanics Condensed Matter Physics Thermal conduction Churchill–Bernstein equation Discharge coefficient Physics::Fluid Dynamics Heat transfer Physics::Atomic and Molecular Clusters Fluid dynamics
Zdroj:	Numerical Heat Transfer, Part A: Applications. 51:267-291
ISSN:	1521-0634 1040-7782
DOI:	10.1080/10407780600710250
Popis:	Fluid flow and heat transfer in three-dimensional round-to-rectangular (RR) nozzles with regenerative cooling are analyzed numerically. In this analysis, the hot gas flow in the nozzle and the coolant flow in the cooling channels are taken into account, and the heat transfer processes of convection, radiation, and conduction are included. The characteristics of the RR nozzle are obtained. Effects of structure parameters on the flow and heat transfer of the RR nozzle are investigated. The parameters are round-to-rectangular transforming position, height-to-width ratio at the outlet, and arc radius of the outlet. The results indicate that the RR nozzle has different flow features than an axisymmetric nozzle; the height-to-width ratio of the exit plane has a significant influence on the flow and heat transfer in RR nozzles.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a0907e29b8574d3180af88130f65fdee https://doi.org/10.1080/10407780600710250 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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