Abstract: The Geostationary Operational Environmental Satellites (GOES) carry several instruments each with its own requirements. Because…
Author: New NASA STI
Hybrid Guidance Control for a Hypervelocity Small Size Asteroid Interceptor Vehicle
Abstract: Near-Earth Objects (NEOs) are comets and/or asteroids that have orbits in proximity with Earth's own…
Improved Propulsion Modeling for Low-Thrust Trajectory Optimization
Abstract: Low-thrust trajectory design is tightly coupled with spacecraft systems design. In particular, the propulsion and…
NASA Double Asteroid Redirection Test (Dart) Trajectory Validation and Robustness
Abstract: The Double Asteroid Redirection Test (DART) mission will be the first to test the concept…
A Time-Regularized, Multiple Gravity-Assist Low-Thrust, Bounded-Impulse Model for Trajectory Optimization
Abstract: The multiple gravity assist low-thrust (MGALT) trajectory model combines the medium-fidelity Sims-Flanagan bounded-impulse transcription with…
Measurement of Cohesion in Asteroid Regolith Materials
Abstract: A study has been initiated to examine cohesive forces in asteroid materials to contribute to…
A Time-Regularized Multiple Gravity-Assist Low-Thrust Bounded-Impulse Model for Trajectory Optimization
Abstract: The multiple gravity assist low-thrust (MGALT) trajectory model combines the medium-fidelity Sims-Flanagan bounded-impulse transcription with…
Approach to Modeling Boundary Layer Ingestion using a Fully Coupled Propulsion-RANS Model
Abstract: Although boundary layer ingestion (BLI), or wake ingestion, is commonly applied in marine propulsion applications,…
Model Validation for Propulsion – On the TFNS and LES Subgrid Models for a Bluff Body Stabilized Flame
Abstract: This paper summarizes the reacting results of simulating a bluff body stabilized flame experiment of…
Validating a Monotonically-Integrated Large Eddy Simulation Code for Subsonic Jet Acoustics
Abstract: The results of subsonic jet validation cases for the Naval Research Lab's Jet Engine Noise…