Fan Noise Research: Basic Theory and an Application

Abstract: A brief over view of Fan Noise Theory and an application to the DART for…

Measurement of Noise Reduction from Acoustic Casing Treatments Installed Over a Subscale High Bypass Ratio Turbofan Rotor

Abstract: NASA is continuing to develop over-the-rotor acoustic liners for turbofan applications. A series of low…

Ionic Liquids at Electrified Interfaces: From Double Layers to Decomposition [STUB]

Abstract: Ionic liquids are versatile electrolytes whose properties at electrified interfaces have the potential to enable…

Active Flow Control for Trailing Edge Flap Separation [STUB]

Abstract: Active flow control (AFC) in the form of sweeping jet (SWJ) excitation and discrete steady…

Inferring Aerosol Properties from Space-Based Measurements: An Alternative to Direct Retrieval

Abstract: No abstract available

Flame Holder System

Abstract: A flame holder system includes a modified torch body and a ceramic flame holder. Catch…

Enhanced Liquid Oxygen-Propylene Rocket Engine

Abstract: Provided herein are various improvements to rocket engine components and rocket engine operational techniques. In…

Microorganism Cultivation Platform for Human Life Support

Abstract: A life support system for providing a growth medium for at least one photosynthetic micro-organism…

Method and Apparatus for Spacecraft Gyroscope Scale Factor Calibration

Abstract: A method and apparatus for estimating gyro scale factor during normal spacecraft operations, using small…

Effect of Off-Body Laser Discharge on Drag Reduction of Hemisphere Cylinder in Supersonic Flow-Part II [STUB]

Abstract: The interaction of on-axis and o -axis laser discharge in front of a hemisphere cylinder…