Visualization of Permanent Magnet Motor Hydrodynamics

Peizheng Ma^1, , Benjamin Ma² and Nianhua Guo³

¹Department of Computer Science, Stony Brook University, Stony Brook, USA

²Ward Melville High School, East Setauket, USA

³LISVH, Stony Brook University, Stony Brook, USA

Cite this paper:
Peizheng Ma, Benjamin Ma and Nianhua Guo. Visualization of Permanent Magnet Motor Hydrodynamics. American Journal of Mechanical Engineering. 2026; 14(1):14-22. doi: 10.12691/ajme-14-1-3

Abstract

This paper presents a real-time interactive system for simulating and visualizing motor-driven fluid hydrodynamics. The framework integrates a torque-based motor model with Heightfield and Smoothed Particle Hydrodynamics (SPH) fluid simulations. Utilizing modern OpenGL and an ImGui-based control interface, the system achieves consistent real-time performance on a CPU-based laptop and effectively illustrates the differences between surface-only and volumetric fluid models. Quantitative evaluation on a consumer-grade laptop demonstrates real-time performance near 60 FPS for SPH simulations up to approximately 2,000 particles, and interactive rates (15–30 FPS) up to about 5,000 particles. These results validate the system’s suitability for interactive visualization, education, and exploratory research under modest hardware constraints, while acknowledging limitations due to weakly compressible SPH, simplified boundary handling, and heuristic impeller–fluid coupling.

Keywords:
Fluid simulation Smoothed Particle Hydrodynamics (SPH) Heightfield model Real-time graphics OpenGL Motor-driven flow Interactive visualization Computer graphics

This work is licensed under a Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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