Structure of a Pulse Jet : 2nd Report, Energy Balance in a Transient Zone
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概要
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This paper is a continuation to one dealing with the statistical quantities of turbulences in a pulse jet, and is concerned with experimental analysis of the energy balance in the transient zones of axisymmetric jets, which are exhausted continuously or pulsatedly from a circular nozzle. The magnitude of each term constituting the energy equation for turbulent motion has been calculated, and the results of the steady jet are compared with those of Sami. Temporal and spatial variations of the turbulence scale and energy components are also evaluated. It is found from the energy analysis of the pulse jet that the diffusion and pressure-transport terms, which are of a negligible order for the steady jet, become strong ones of the order compared to other terms.
- 一般社団法人日本機械学会の論文
- 1986-08-00
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