224 干渉縞画像処理システムによる軸対称衝撃波の観測

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タイトル別名
  • Observation of Axisymmetrical Shock Waves by an Image-Processing System for Interferograms
  • カンショウジマ ガゾウ ショリ システム ニヨル ジク タイショウ ショウゲキ

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In order to obtain density variations in axisymmetrical flow field, an image-processing system for analyzing interferograms is developed. The system consists of a Mach-Zehnder interferometer, a nitrogen pulse laser, and a CCD-camera. Images are processed by personal computers. Axisymmetrical flow fields are generated by shock waves, which are dischargedfrom an open end, and observed by using the present system of the image-processing. The gas is nitrogen, the intial pressures are 49 to 196 kPa, and the incident shock Mach numbers are 1.2 to 2.0. The observed density distributions are found to be in good agreements with the CFD ones.

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