Can Acoustic Levitation Simulate Microgravity in Fluids?

Aquino R.C.D.; Vargas K.E.C.; Rios S.S.S.; Milián J.R.; Roman-Gonzalez A. · Proceedings of the International Astronautical Congress, IAC (2024) · DOI: 10.52202/078356-0041

Resumen

Simulating microgravity conditions on Earth is essential for advancing the study of fluid dynamics and related physical processes in space-like environments. Traditional methods for achieving microgravity, such as drop towers and parabolic flights, are often prohibitively expensive and technically complex. This study introduces Graviit, an innovative acoustic levitation system specifically designed to simulate microgravity within fluid environments. Graviit employs an array of ultrasonic transducers, controlled by an Arduino-based electronic system, and a 3D-printed levitation chamber to generate the acoustic and centrifugal forces necessary to counteract Earth's gravity. Through comprehensive structural and acoustic simulations, alongside experimental validations, we demonstrate Graviit's capability to create stable, near-zero gravity conditions within fluid droplets of varying viscosities. The system is highly cost-effective, with total component costs totaling approximately $97.58, and is designed for scalability and ease of assembly, making it accessible to a wide range of researchers. Additionally, Graviit's open-source design promotes widespread adoption and customization, enabling extensive experimentation without the need for specialized infrastructure. This prototype not only democratizes access to microgravity simulation but also expands the horizons of fluid research under space-like conditions, facilitating advancements in fields such as materials science, biotechnology, and chemical engineering. Copyright

Instituciones: Universidad Nacional Mayor de San Marcos; Universidad Nacional de Moquegua; Universidad Privada del Norte; Universidad de Ingeniería y Tecnología