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Predictive Control of Flow Choking Phenomena in Multimode Propulsion Systems Through the Plasma-Acoustic Coupling Mechanismстатья Исследовательская статья
- Авторы: Lukin Alexander N., Rajendran Vigneshwaran, Balusamy Surya, Nandhan Akshay Kumar, K Asher Prisha, A Merrish Aloy, Urumandampalayam Krishnan Thianesh, Saravanan Vignesh, Sukumaran Ajith, Sanal Kumar VR
- Сборник: AIAA Propulsion and Energy 2021 Forum
- Год издания: 2021
- Издательство: American Institute of Aeronautics and Astronautics
- Местоположение издательства: United States
- DOI: 10.2514/6.2021-3240
- Аннотация: Theoretical discovery of the Sanal flow choking phenomenon has opened the new possibilities for better understanding the intra-chamber processes and for the design optimization of the next generation in-space multimode propulsion systems. Development of the new concepts and tool-kits for predictive control the flow choking phenomena in the solid propulsion system channels has potential to expand capabilities of the in-space propulsion systems. We propose an innovative strategy for predictive control and manipulating by the flow choking phenomena in multimode propulsion systems through the plasma-acoustic coupling mechanism, that transforms the input electrical energy into the directed acoustic energy. Using the new strategy without any convergent-divergent nozzle we can create the flow choking and the supersonic flow condition in multimode propulsion systems for various aerospace applications. As a first step, for establishing the proof of the concept, using an acoustic wave the choking and unchoking phenomena are demonstrated in a fluid flow system. By inducing an acoustic wave to the boundary layer we could alter the boundary layer thickness and the total-to-static pressure ratio for choking. A validated flow solver with user defined function (UDF) is invoked herein for generating acoustic waves and nanoscale shock waves to the desired location of the propulsion system for establishing the concept of multimode predictive control of flow choking phenomena. Acoustic wave UDF contains multiple sine wave signals taken from acoustic spectrum, which converted in to time signal. Acoustic waves are a type of energy propagation through a medium by means of adiabatic compression and decompression. We concluded that by altering the critical pressure ratio using plasma-acoustic coupling mechanism and entropy wave generation, we can possibly regulate the thrust by altering the Sanal flow choking and unchoking condition for achieving the desirable variable thrust at gravity and microgravity conditions. The physical insight of the Sanal flow choking sheds light on design optimization of multimode propulsion systems through the plasma-acoustic coupling mechanism.
- Добавил в систему: Лукин Александр Николаевич