Numerical and Engine Cycle Analyses of a Pulse Laser Ramjet Vehicle

• Katsurayama Hiroshi

  The University of Tokyo

• Komurasaki Kimiya

  The University of Tokyo

• Momozawa Ai

  The University of Tokyo

• Arakawa Yoshihiro

  The University of Tokyo

Bibliographic Information

Other Title

• パルスレーザーラムジェット機の数値解析とエンジンサイクル解析

Abstract

A preliminary feasibility study of a laser ramjet SSTO has been conducted using engine cycle analysis. Although a large amount of laser energy is lost due to chemically frozen flow at high altitudes, the laser ramjet SSTO was found to be feasible with 100 MW laser power for 100 kg vehicle mass and 1 m² vehicle cross-section area. Obtained momentum coupling coefficient, Cm, was validated by means of CFD. As a result, the engine cycle analysis was under-estimating Cm. This would be because of the strong unsteady energy input in the actual heating process and the spatially localized pressure on the afterbody.

Journal

• TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, SPACE TECHNOLOGY JAPAN

  TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, SPACE TECHNOLOGY JAPAN 1 9-16, 2003

  THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES

Keywords

• Laser Propulsion
• Laser Ramjet
• SSTO

Details

• CRID: 1390282680189029376
• NII Article ID: 130000151769
• DOI: 10.2322/tstj.1.9
• ISSN: 13473840
• Web Site: https://www.jstage.jst.go.jp/article/tstj/1/0/1_0_9/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed