Quadrature Moments Method for the Simulation of Turbulent Reactive Flows
Abstract
In recent years, computational fluid mechanics has become one of the primary tools for design and optimization of chemical reactors. With stringent environmental constraints, close control of product selectivity and an estimate of by-products are essential in successfully operating chemical plants. The fast throughput and enhanced mixing conditions offered by turbulent flows are increasingly exploited in chemical reactors. Viable simulation methods for such flows should be able to model the complex interaction of reaction and turbulent flow. All known reaction models used in these simulations follow a segregated approach where different techniques are used to solve the momentum and scalar transport equations. It is assumed that reaction affects fluid flow only through the change in density. Usually a variable density flow solver is utilized that accepts the density field from the scalar handler to correct the flow field. The scalar transport scheme uses the flow properties to evaluate the local density and this iterative procedure is used to advance the solution in time. The Eulerian solution technique that is commonly used in solving scalar transport equations inherently does not contain information about sub-grid level processes.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 2003
- Accession Number
- ADP014809
Entities
People
- Heinz Pitsch
- Rodney O. Fox
- Venkatramanan Raman
Organizations
- Iowa State University