Effects of Wall Catalysis on the Reacting Zone Structure of a Supersonic Flow Chemical Oxygen-Iodine Laser
スポンサーリンク
概要
- 論文の詳細を見る
The flow field of a supersonic flow chemical oxygen-iodine laser is simulated by solving the three-dimensional full Navier-Stokes equations, and the dependence of the mixing / reacting zone structure and the resulting gain region on the penetration depth of I_2 jet into the primary flow of singlet delta oxygen O_2(^1Δ)is investigated. The effects of wall catalysis are discussed by introducing the surface catalytic efficiency into the wall boundary condition. It is shown that an optimum condition for the secondary I_2 jet momentum exists, and that the jet that causes a high gain penetrates the primary flow up to an intermediate depth and does not collide with the counter one. It is also shown that the molar fractions of I(^2P_<1 / 2>)and O_2(^1Δ)are reduced markedly on the fully catalytic wall. The deactivated oxygen molecules are engulfed by the vortices generated behind the I_2 jet, leading to the presence of a large amount of unconsumed I_2, the reduced formation of I(^2P_<1 / 2>)and a large negative gain region in the center of the vortices even far downstream of the nozzle blades. The present study demonstrates the importance of the choice of wall material.
- 一般社団法人日本機械学会の論文
- 1998-08-15
著者
-
菱田 学
長岡技術科学大学機械系
-
菱田 学
名大工
-
Masuda Wataru
Faculty Of Engineering Nagaoka University Of Technology
-
Hishida Manabu
Faculty Of Engineering Nagaoka University Of Technology : (present Address) Department Of Aerospace
-
AZAMI Naoki
Graduate Student, Nagaoka University of Technology
-
Azami Naoki
Graduate Student Nagaoka University Of Technology
関連論文
- 副燃焼室から噴射された燃焼気体ジェットによる着火の流体力学的研究
- Effects of Injection of Various Gases on the Gain Characteristics of a Supersonic Flow CO Chemical Laser
- 微小重力環境を利用した近臨界混合表面ジェット微粒化過程の研究
- 1618 可撓翼のエアインテーク部改良による飛行特性の向上
- A-9 パルスジェット燃焼の数値シミュレーション
- 高濃度固体粒子混合気体層内の衝撃波の数値解析(第7回航空機計算空気力学シンポジウム論文集)
- Numerical Simulation of Supersonic Flow CO Chemical Laser Solving Navier-Stokes Equations
- Effects of Nozzle Contour on the Aerodynamic Characteristics of Underexpanded Annular Impinging Jets
- C222 水素燃料PDEにおけるデトネーション構造の数値シミュレーション(C-22 燃焼流(1),一般講演)
- Effects of Water Vapor Condensation on the Performance of Supersonic Flow Chemical Oxygen-Iodine Laser
- Three-Dimensional Mixing / Reacting Zone Structure in a Supersonic Flow Chemical Oxygen-Iodine Laser
- Numerical Simulation for the Power of a Supersonic Flow CO Chemical Laser Using a Leaky Stream Tube Approach
- Numerical Simulation of a Supersonic Flow Chemical Oxygen-Iodine Laser Solving Navier-Stokes Equations
- 音響加振された噴流拡散火炎の噴流構造と燃焼特性
- Mixing and Reacting Zone Structure in a Supersonic Mixing Chemical Oxygen-Iodine Laser with Ramp Nozzle Array
- 音響励振されたメタン噴流拡散火炎の特性
- Characteristics of Radiation from a supersonic Flow Chemical Oxygen-Iodine Laser
- Effects of Wall Catalysis on the Reacting Zone Structure of a Supersonic Flow Chemical Oxygen-Iodine Laser
- 6・5希薄流体(6.特殊流体)(機械工学年鑑(1996年))(流体工学)
- 6・4プラズマ流体・反応性流体(6.特殊流体)(機械工学年鑑(1996年))(流体工学)
- SCOIL装置内流れ場の3次元数値計算による可視化
- Aerodynamic Characteristics of Underexpanded Coaxial Impinging Jets
- Numerical Analysis for the Power of a Supersonic Flow CO Chemical Laser
- Characteristics of Radiation from a Q-Switched Supersonic Flow Chemical Oxygen-Iodine Laser
- Numerical Analysis on the Reaction Zone Structure of a Supersonic Flow CO Chemical Laser
- Investigation on the Theoretical Modeling of a Supersonic Flow CO Chemical Laser
- Measurements of Small Signal Gain Coefficients of a Supersonic Flow CO Chemical Laser
- Numerical Simulation of an N_2O Downstream Mixing Gasdynamic Laser