Multiphysics Hypersonic Aerothermodynamics

A Multiphysics Coupled CFD Simulation Framework

Hypersonic aerothermodynamics involves tightly coupled physical processes that cannot be captured by a single model. However, most numerical studies have focused on a single physics, which limits their accuracy in practice. To address this challenge, we develop multiphysics CFD frameworks that integrate:

• Fluid Dynamics: shock waves, turbulence, and boundary-layer transition

• Thermal Processes: heat transfer, ablation, and surface catalysis

• Chemical Nonequilibrium: dissociation, ionization, and recombination

• Radiation and Plasma Effects: high-temperature radiation, plasma–flow interactions

• Fluid–Structure Interaction (FSI): coupling of aerodynamic heating with structural response

We aim to advance our frameworks step by step, pursuing world-class modeling and applied simulations. These capabilities will be applied to high-fidelity predictions for supersonic fighters, hypersonic missiles, reusable launch vehicles, and planetary exploration missions.

Re-entry Space Vehicle

Re-entry vehicles face extreme aerothermal loads as they penetrate Earth’s atmosphere at hypersonic speeds. Strong shocks, chemical nonequilibrium, radiation, and ablation of thermal protection systems occur simultaneously, making accurate prediction indispensable. Our multiphysics CFD frameworks provide detailed insight into shock–boundary layer interactions, surface heating, and material response, supporting the design of safe and reliable re-entry capsules and spacecraft.

Reusable Launch Vehicle

Reusable launch vehicles (RLVs) demand accurate aerothermal prediction across the full flight envelope—from ascent through high-altitude flight to re-entry. Ground testing cannot cover such wide-ranging environments, and conventional single-physics approaches fall short. By integrating fluid dynamics, thermal response, and chemical–radiative processes, our multiphysics simulations enable efficient thermal protection system design, reduce development cost, and enhance mission reliability for next-generation space transportation.