Numerical Simulation of Two-dimensional Ejector Nozzle with Short Shroud
Author(s): LIU Fu-cheng, JI Hong-hu, SI Ren, LIU Chang-chun
Pages: 623-628,664
Year: 2013 Issue: 10
Journal: Infrared Technology
Keyword: 2D ejector nozzle with short shroud; thrust characteristics; infrared radiation; geometry parameter;
Abstract: The thrust characteristics of two-dimensional ejector nozzle with short shroud are studied with variational geometry parameter. The best parameters are selected. Then the infrared radiation characteristics in the waveband of 3-5μm are studied, and compared with axisymmetric nozzle, 2D nozzle and 2D ejector nozzle with long shroud. The flow field of the exhaust jet was calculated with commercial software. The infrared radiation characteristics were calculated with an IR analysis software(NUAA-IR)developed by our research group. The results show that the 2D ejector nozzle with short shroud is better than the 2D ejector nozzle with long shroud on the thrust characteristics and infrared radiation characteristics.
Pages: 623-628,664
Year: 2013 Issue: 10
Journal: Infrared Technology
Keyword: 2D ejector nozzle with short shroud; thrust characteristics; infrared radiation; geometry parameter;
Abstract: The thrust characteristics of two-dimensional ejector nozzle with short shroud are studied with variational geometry parameter. The best parameters are selected. Then the infrared radiation characteristics in the waveband of 3-5μm are studied, and compared with axisymmetric nozzle, 2D nozzle and 2D ejector nozzle with long shroud. The flow field of the exhaust jet was calculated with commercial software. The infrared radiation characteristics were calculated with an IR analysis software(NUAA-IR)developed by our research group. The results show that the 2D ejector nozzle with short shroud is better than the 2D ejector nozzle with long shroud on the thrust characteristics and infrared radiation characteristics.
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