5 papers
PhyNiKCE: A Neurosymbolic Agentic Framework for Autonomous Computational Fluid Dynamics
E Fan, Lisong Shi, Zhengtong Li +1
The deployment of autonomous agents for Computational Fluid Dynamics (CFD), is critically limited by the probabilistic nature of Large Language Models (LLMs), which struggle to enf…
Numerical Study of Oblique Detonation Initiation Assisted by Local Energy Deposition
Ziqi Jiang, Zongnan Chen, Lisong Shi +3
Reliable initiation of oblique detonation waves (ODWs) is crucial for the stable operation of oblique detonation engines (ODEs), especially under flight conditions of low Mach numb…
Analysis and applications of the upwind conservation element and solution element scheme for compressible flow simulations
Yazhong Jiang, Lisong Shi, Chih-Yung Wen
The upwind conservation element and solution element (CESE) scheme is an alternative discontinuity-capturing numerical approach to solving hyperbolic conservation laws. To evaluate…
Detonation propagation in three-dimensional continuous curved ducts
Lisong Shi, Chih-Yung Wen, Xuxu Sun +1
In this paper, 3D detonation numerical studies are conducted using reactive Euler equations in both straight and curved channels. These simulations are compared to investigate the…
Adaptive mesh refinement algorithm for CESE schemes on quadrilateral meshes
Lisong Shi, Chaoxiong Zhang, Chih-Yung Wen
This study presents constructions of the space-time Conservation Element and Solution Element (CESE) methods to accommodate adaptive unstructured quadrilateral meshes. Subsequently…