A Multiscale Morphing Continuum Analysis on Energy Cascade of Compressible Turbulence
Abstract
The goal of this project is to construct a statistical morphing continuum theory to model thecomplex and non-equilibrium physics of microstructured eddies in compressible turbulence. Thismultiscale phenomenon is largely composed of subscale eddies, strongly affecting themacroscale flow behaviors. Morphing continuum theory (MCT) contains one length scale formacroscale translation and the other one for subscale eddy motion. Although MCT can beformulated under the framework of rational continuum thermomechanics, the physical picture itdescribes for compressible turbulence is still unclear. This project will propose the statisticalfoundation of the morphing continuum theory to describe the statistics of the turbulent eddystructures, and connect this description with compressible turbulence physics, such as energycascade. Hence, the research objective is to investigate the energy cascade in compressibleturbulence through the multiscale morphing continuum theory along with a high performancenumerical solver without any ad hoc turbulence closure model.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- May 02, 2017
- Source ID
- FA95501710154
Entities
People
- James Chen
Organizations
- Air Force Office of Scientific Research
- Kansas State University
- United States Air Force