The interaction between plasma and microparticles is at the heart of many scientific inquiries, from astrophysics to plasma medicine. To study plasma-microparticle interactions, experimental scientists often introduce microparticles into a flowing plasma of a gas discharge. However, studies of these systems require precise and efficient tools to calculate the forces acting on microparticles in a plasma flow.
Until now, plasma physicists had to develop specialized software for each task, which was a resource-intensive process. Open-source programs have encountered issues related to installation, documentation, and slow performance. To provide a better solution, a team of scientists from the Joint Institute for High Temperatures RAS, the HSE, and MIPT created OpenDust, a fast and open-source program, which performs ten times faster than existing ones. By using multiple GPUs simultaneously, OpenDust’s algorithm accelerates calculations.
According to Daniil Kolotinskii, OpenDust developer, Junior Researcher at the Joint Institute for High Temperatures RAS: “OpenDust has a user-friendly interface and enables users to specify various parameters. Users can define the plasma flow rate and the number of GPU accelerators needed for a calculation. The backend is optimized for high-performance computations and harnesses the power of multiple GPUs, allowing for substantially increased calculations and process larger amounts of data.”
OpenDust simulates the dynamics of plasma media surrounding a system of microparticles and can be utilized to explore a wide range of complex plasma physical phenomena, including instabilities and self-organization effects. It can also be applied to many areas of science and industry, such as plasma purification processes, extreme ultraviolet lithography machines, and active particle systems.
According to Alexey Timofeev, Leading Research Fellow, HSE International Laboratory for Supercomputer Atomistic Modelling and Multi-scale Analysis: “OpenDust is the first open-source program for the multiscale self-consistent simulation of microparticle motion in a plasma flow. It can serve as a versatile tool for simulating and studying diverse physical phenomena associated with microparticle motion in a plasma flow. The code has both academical and industrial applications and can facilitate the development of novel methods for efficiently removing dust from plasma in industrial lithography machines.”
The research was published in the journal Computer Physics Communications.
More information:D. Kolotinskii et al, OpenDust: A fast GPU-accelerated code for the calculation of forces acting on microparticles in a plasma flow,Computer Physics Communications (2023). DOI: 10.1016/j.cpc.2023.108746
Provided by National Research University Higher School of Economics
Citation: Physicists developed faster algorithm for the simulation motion of microparticles in a plasma flow (2023, June 13) retrieved 13 June 2023 from https://phys.org/news/2023-06-physicists-faster-algorithm-simulation-motion.html
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