Fluid-Orbit Coupling Calculation for Maintaining Stable Flight of Laser Propulsion Vehicle

• TAKAHASHI Masayuki

  Tohoku University

• KOGUSHI Takatoshi

  Tohoku University

• OHNISHI Naofumi

  Tohoku University

Bibliographic Information

Other Title

• レーザー推進機の安定飛行維持に向けた流体軌道連成計算

Abstract

  A multi-parabola thruster was proposed to suppress rotational moments during generation of centering feedback forces when an incident beam has lateral offset. A computational fluid dynamics simulation was conducted to reproduce blast wave propagations and evaluate the lateral and angular impulses. The centering feedback force of the multi-parabola thruster decreased in comparison with the lightcraft because negative pressure waves were repeatedly reflected between the cowl and central body. However, the angular impulse of the multi-parabola thruster became 1/25 of the lightcraft because symmetry of the vehicle shape was maintained on the surface that the blast wave contacted. There is possibility that a stable beam-riding flight is maintained for a longer time by utilizing the multi-parabola thruster proposed by us.

Journal

• Space Solar Power Systems

  Space Solar Power Systems 3 (0), 27-29, 2018

  Space Solar Power Systems Society

Keywords

• Laser Propulsion
• Stable Flight
• Computational Fluid Dynamics
• Blast Wave
• Multi-Parabola Thruster

Details

• CRID: 1390001206224166272
• NII Article ID: 130006654992
• DOI: 10.24662/sspss.3.0_27
• ISSN: 24321060
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed