Numerical Simulation of Hypervelocity Impact Induced Phenomena
Abstract
Abstract (Publically Releasable)Soda Lime Glass (SLG) exhibits polymorphic behavior under extreme conditions. In the presence of shock compression and under high pressure, it experiences extreme strain rates and temperatures. Ultimately, these result in polymorphic phase transformations, densification, chemical interactions, and the development of plasma temperature in the neighborhood of 6000 Deg. K. Hence, a distinctive Cherenkov radiation is emitted from the area of hypervelocity impact due to charged particules movingwith relativistic velocities. Currently, ONR is exploring the potential of the Cherenkov radiation in hypervelocity impact of condensed matter as a future diagnostic tool for understanding electromagnetic plasma properties, as well as measuring temperature and polymorphic transformations of SLG during hypervelocity impact. The proposed two-year research effort aims at supporting ONRs experimental effort with the development and exploitation of a corresponding, state-of-the-art, multiphysics, numerical simulation capability. The underlying high-fidelity computational model couples most-appropriate fluid, thermal, radiation, and structural submodels for hypersonic aerothermodynamics based on the rigorous treatment of the governing transmission conditions. For this purpose, it relies on the latest advances in: embedded boundary methods for computational fluid dynamics and fluid-structure interaction; adaptive mesh refinement; and robust partitioned procedures for the accurate as well as efficient solution of four-way coupled fluid-stucture-thermal-radiation problems. The proposed research effort will be performed in parallel with a related effort conducted at the U.S. Naval Research Laboratory.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- May 05, 2021
- Source ID
- N000142112405
Entities
People
- Charbel Farhat
Organizations
- Office of Naval Research
- Stanford University
- United States Navy