21-000001260 - Multiphase Detonation of Liquid Aeropropulsion Fuels
Abstract
AbstractWe propose a multiphysics, multiscale, and tightly-integrated computational-experimental research program to achieve a broad, understanding of multiphase detonations under relevant conditions, with the following key research topics:- Advance an automated ex,perimental facility with advanced laser diagnostic capabilities to enable rapid probing of multiphase detonation;- Develop a hierarc,hical, comprehensive experimental database for multiphase detonation suitable for simulation, modeling and data augmentation;- Devel,op multiscale simulation capabilities that range from molecular interactions to shock-droplet interactions and detonation in fuel dr,oplet laden environment;- Advance fuel- and detonation-specific chemistry models, thus extending the capability of Hy-Chem reaction,models of real-fuel combustion to detonation simulations;- Combine the understanding garnered above and advance suitable mathematica,l approaches to assimilate experimental and computational data into a comprehensive modeling capability for multiphase detonations;-, Leverage the multiphase environments to demonstrate a range of ideas and approaches for manipulating and achieving stable, robust d,etonation processes.Our overarching goal is to develop general theories and approaches for extracting rate-controlling processes, sc,ales and invariances and to enable description, modeling and manipulation of relevant multiphase detonation processes, including sho,ck-droplet and shock-chemistry interactions. All experiments, simulations and analyses will use real aeropropulsion fuels (RP2, JP5,and JP10) supplemented by ethylene (the dominant component of RP2, JP5 and JP10 pyrolysis) as needed.The outcomes of this project in,clude a) the development of a consistent and practical multiscale approach to describing, modeling and manipulating multiphase deton,ations of interest to existing and emerging propulsion systems, b) a set of computational tools for predictive modeling of multiphas,e detonation of real aeropropulsion fuels; c) a comprehensive experimental database for model development and testing; d) a mathemat,ical framework for integrating experiments and simulations through data assimilation and augmentation, allowing for extraction of mo,del structures and uncertainty quantification.The research team consists of experts in computational modeling (A. Poludnenko, V. Ram,an, and X. Zhao), chemistry model development (H. Wang and X. Zhao), experiments and laser diagnostics (K. Ahmed, C. E. Dedic, and H,. Wang), and applied mathematics (R. Ghanem and V. Raman). In addition to team collaboration, we will work closely and extensively w,ith NRL, AFRL and other government labs to provide data, simulation and modeling tools in a timely manner, and to leverage their ext,ensive computational and experimental capabilities to achieve our research goals. We will continue to build on-going relationship wi,th our industrial partners to ensure that our effort is of direct relevance to their applications.Approved for public release.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 05, 2022
- Source ID
- N000142212606
Entities
People
- Hai Wang
Organizations
- Office of Naval Research
- Stanford University
- United States Navy