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NCREE Brief Examines MFS-PSO for Solving Exterior Potential Field Problems
Structures
An NCREE research brief explores combining the Method of Fundamental Solutions with Particle Swarm Optimization (MFS-PSO) to automate virtual source placement for exterior potential flow problems.
A research brief from NCREE discusses the MFS-PSO numerical method. The study notes that the accuracy of the Method of Fundamental Solutions (MFS) heavily relies on virtual source placement. Using PSO in the outer loop to search source geometry and solving linear coefficients in the inner loop enables automated placement while retaining meshless boundary precision.
Key takeaways
- MFS-PSO uses the linear system residual norm as the objective function, updating source coordinates via swarm optimization.
- A 2D cylinder flow test showed residuals decreasing through iterations and converging to approximately 10⁻¹¹ to 10⁻¹⁰.
Source：國家地震工程研究中心｜地震工程研究簡訊 Read the original ↗
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