Remote VR in-situ Visualization for steering CFD simulations

Shimomura, Kazuya ; Kawamura, Takuma ; Idomura, Yasuhiro   

In-situ simulation steering control has been gaining attention for parameter optimization and inverse problem analysis in large-scale CFD simulations in supercomputers. At the same time, the increasing resolution of simulations has enhanced realism, further emphasizing the importance of virtual reality (VR) technology. To address these needs, we propose in-situ steering simulation in a VR environment using the visualization application PBVR. PBVR is a remote visualization application that employs a particle-based volume rendering method. Independent versions of PBVR have been developed with in-situ visualization functionality, enabling interactive data visualization during simulation execution, VR visualization functionality for projecting visualization results into a VR space, and interactive simulation steering control functionality. In this study, we integrated these capabilities to achieve in-situ simulation control for large-scale CFD simulations and validated its effectiveness using an OpenFOAM-based wind condition analysis code.