Effect of Nozzle Lip Shape on Screech Tone in a Supersonic Jet
スポンサーリンク
概要
- 論文の詳細を見る
The effect of nozzle lip shape on screech tone is investigated by a computational aeroacoustic approach. First, the scattered patterns of screech tone are examined without a jet mean flow, where plane waves interact with a nozzle lip wall. Then, an axisymmetric jet screech is simulated in the Mach number range from 1.07 to 1.2, where the axisymmetric mode is a dominant screech mode. The conservative form of the axisymmetric Euler equations written in generalized coordinates are used to treat the complex nozzle lip geometry for the scattering problem as well as the Reynolds Averaged Navier-Stokes equations with the modified Spalart-Allmaras turbulence model. The computed shock-cell structure, screech tone frequency, and sound pressure levels in the near field are in good agreement with existing experimental data.
- 日本航空宇宙学会の論文
- 2008-05-04
著者
-
Nakamura Yoshiaki
Department Of Aerospace Engineering Nagoya University
-
Nakamura Yoshiaki
Department Of Aeronautical Engineering Nagoya University
-
KIM Yongseok
School of Mechanical and Aerospace Engineering, Sunchon National University
-
Kim Yongseok
School Of Mechanical And Aerospace Engineering Sunchon National University
関連論文
- Energy Separation in High Subsonic Turbine Cascade
- Novel Flow Control Method for Vortex Shedding of Turbine Blade
- Unsteady Aerodynamic Interaction between Two Bodies at Hypersonic Speed
- Control of Leakage Flow by Triple Squealer Configuration in Axial Flow Turbine
- Morphing-Based Shape Optimization in Computational Fluid Dynamics
- Correlation between Linear Stability Theory and Transition of Compressible Jet Shear Layer
- N-acetylcysteine improves cytotoxic activity of cirrhotic rat liver-associated mononuclear cells
- Dynamic Helical CT Mammography of Breast Cancer
- A case of pediatric gastrointestinal stromal tumor of the stomach
- Control of a Falling Body with a Mathematical Model for Unsteady Aerodynamic Force
- Incompressible Flow Solver of Arbitrarily Moving Bodies with Rigid Surface
- On Instability of Acoustic Waves Propagating in Stratified Vortical Flows
- A Cartesian Grid Generation Method Considering a Complicated Cell Geometry at the Body Surface
- Role of Intermolecular Separation in Nanoscale Patterning C_ Films by Local Injection of Electrons from Scanning Tunneling Microscope Tip
- A CURVILINEAR COORDINATE METHOD FOR THE SOLUTIONS OF INITIAL VALUE PROBLEMS USING THE THIRD-ORDER UPWIND DIFFERENCING SCHEME
- A case of HER-2-positive advanced inflammatory breast cancer with invasive micropapillary component showing a clinically complete response to concurrent trastuzumab and paclitaxel treatment
- Photoelectron Spectroscopy of Scandium-Arene Complex Anions
- Comparison between Hot and Cold Flow Conditions of Turbine Cascade
- Synthesis of a Falling Body Controller with Modeling Error of Aerodynamic Force
- Passive Separation Control on a Square Cylinder at Transonic Speed
- Ferromagnetism of Electron Solid
- Effect of Nozzle Lip Shape on Screech Tone in a Supersonic Jet
- Passive Separation Control on a Body at Transonic Speed
- Pressure- and Temperature-Sensitive Paint Measurements in Shock Tunnel
- Effects of Tip Cavity Depth, Width, and Location on the Leakage Flow in an Axial Turbine Cascade
- Local Optical Characterization Related to Si Cluster Concentration in GaAs Using Scanning Tunneling Microscope Cathodoluminescence Spectroscopy
- Numerical Investigation of Supersonic Oscillatory Flow with Strong Interference over a Capsule-shaped Abort System
- Numerical simulations and experimental comparisons for high-speed nonequilibrium air flows
- Flow Calculation of Moving Body on Cartesian Grid by Using New Cell-Merging Method
- Numerical Analysis of Flow Field and Aerodynamic Characteristics of a Quadrotor
- Numerical Simulation of Supersonic Aerodynamic Interaction of a Parachute System
- Aerodynamic Heating of a Gap in the Hypersonic Laminar Boundary Layer
- Role of Intermolecular Separation in Nanoscale Patterning C60 Films by Local Injection of Electrons from Scanning Tunneling Microscope Tip
- Vinyl Polymerization. 327. Determination of the Initiating Radical Species in Polymerization with a Dimethylmercury and Copper(II)-Ion System
- Vinyl polymerization. CCCXLI. A proposal of a mechanism for radical polymerization of vinyl monomers with sodium polymethallylsulfonate.
- Shedding of herpes simplex virus type 1 into saliva after surgery for oral and genital or urological cancer parients.
- Numerical Investigation of Supersonic Oscillatory Flow with Strong Interference over a Capsule-shaped Abort System
- Verification of acoustic and aerodynamic pressure fluctuations in near acoustic field by wavenumber-frequency spectrum