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Numerical challenges of CFD simulations of two-phase injectors working in the direct contact condensation mode
This work describes numerical simulations applied for the investigation of vapor injection into subcooled flow in a capillary jet loop (CJL) system. The improvement of the injector (or ejector) design is discu...
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Open AccessNear-Optimal Feedback Guidance for Low-Thrust Earth Orbit Transfers
This research describes a near-optimal feedback guidance, based on nonlinear orbit control, for low-thrust Earth orbit transfers. Lyapunov stability theory leads to proving that although several equilibria exi...
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Real-time hybrid method for maneuver detection and estimation of non-cooperative space targets
A novel hybrid scheme for the maneuver detection and estimation of a noncooperative space target was proposed in this study. The optical measurements, together with the range and range rate measurements from t...
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Open AccessDevelopment of a Ferrofluid-Based Attitude Control Actuator for Verification on the ISS
Ferrofluid-based systems provide an opportunity for increasing the durability and reliability of systems, where mechanical parts are prone to wear and tear. Conventional reaction control systems are based on m...
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Considerations for a Spaceport in Venezuela: A Develo** Country
The reduction of components and the development of more powerful satellites with smaller dimensions have allowed an increasing number of users, including universities, research centers, and space agencies in d...
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Initial orbit determination of some cislunar orbits based on short-arc optical observations
Ground- and space-based optical observation is an efficient way to catalog objects in the cislunar space. Initial orbit determination based on optical data is still an open problem for cislunar objects. The mo...
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Precise orbit determination for Tianwen-1 during map** phase
The map** phase is a key stage of the Tianwen-1 orbiter. It has the longest exploration time and gathers abundant radio tracking data via the Chinese deep space network. Thus, it also provides opportunities ...
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Precise orbit determination for low Earth orbit satellites using GNSS: Observations, models, and methods
Spaceborne global navigation satellite system (GNSS) has significantly revolutionized the development of autonomous orbit determination techniques for low Earth orbit satellites for decades. Using a state-of-t...
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Extended Sufficient Conditions of Strong Minimality for the Bolza Problem with Bang Bang Controls. Applications to Space Trajectory Optimization
This paper presents extended sufficiency results for the local minimality of an extremal of the Bolza problem. These results provide an essential improvement in the state of the art because they are applicable...
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Publisher Correction: Hygrothermal Effects in Aeronautical Composite Materials Subjected to Freeze–Thaw Cycling
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Experimental analyses of temperature and pressure oscillation frequencies of a flat plate pulsating heat pipe tested under various edge orientation angles and heat loads
A closed loop flat plate pulsating heat pipe, filled with Opteon™ SF33 (with a filling ratio of 50%), was experimentally studied in different orientations: 0° (horizontal), 22.5°, 45°, 67.5°, and 90° (“;edge”:...
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Spaceborne and ground-based sensor collaboration: Advancing resident space objects’ orbit determination for space sustainability
The limited space around the Earth is getting cluttered with leftover fragments from old missions, creating a real challenge. As more satellites are launched, even debris pieces as small as 5 mm must be tracke...
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Experimental analysis of the influence of ambient temperature for a Loop Heat Pipe based Battery Thermal Management System
In Battery Thermal Management System (BTMS), Loop Heat Pipes (LHPs) may act as thermal vectors connecting the bottom of the battery pack with the remote chiller of the EV’s HVAC system, whilst graphite sheets ...
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Perturbed initial orbit determination
An algorithm for robust initial orbit determination (IOD) under perturbed orbital dynamics is presented. By leveraging map inversion techniques defined in the algebra of Taylor polynomials, this tool returns a...
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Open AccessA Combustion-Driven Facility for Hypersonic Sustained Flight Simulation
This study reports on the development of a new Blowdown-Induction Facility driven by two different Oxygen-Fueled Guns. The facility has been conceived and realized to simulate different flow conditions in the ...
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Open AccessExperimental investigation of the heat transfer characteristics, operating limits, and temperature distribution of a prototypically 3 m long two-phase closed thermosyphon for spent fuel pool passive cooling
The current study investigated the heat transfer performance, operation limits, and temperature distribution of a 3 m prototype model for a large-scale straight two-phase closed thermosyphon with deionized wat...
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Modeling, Simulation, and Control of a Formation of Multirotor Aircraft for Transportation of Suspended Loads
This work aims to contribute to the innovation in the urban air mobility and delivery sector and represents a starting point for air logistics and its future scenarios. The dissertation focuses on modeling, si...
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Autonomous navigation of an asteroid orbiter enhanced by a beacon satellite in a high-altitude orbit
This study aims to assess the autonomous navigation performance of an asteroid orbiter enhanced using an inter-satellite link to a beacon satellite. Autonomous navigation includes the orbit determination of th...
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Message from the Guest Editors of the Special Issue on Precise Orbit Determination
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AIDAA News #23
