Turbulent premixed combustion: Flamelet structure and its effect on turbulent burning velocities

During the last decade, a big progress has been achieved in the analysis and numerical treatment of Initial Value Problems (IVPs) in Differential Algebraic Equations (DAEs) and Ordinary Differential Equations (ODEs). In spite of the rich variety of results available in the literature, there are still many specific problems that require special attention. Two of such, which are considered in this work, are the optimization of order of accuracy and reduction of cost of functional evaluations of Explicit Runge - Kutta (ERK) methods.

Traditionally, the maximum attainable order p of an s-stage ERK method for advancing the solution of an IVP is such that
p(s)
 4
 
In 1999, Goeken presented an s-stage ERK Method of order p(s)=s +1,s>2.
However, this work focuses on the design of a new approximation algorithm that reduces the cost of functional evaluations and yet increases the attainable order higher 
U n and Jonhson [94]; and the classical ERK methods. The order p of 
the new scheme called Multiderivative Explicit Runge-Kutta (MERK) Methods is such that p(s) 2. The stability, convergence and implementation for the optimization of IVPs in DAEs and ODEs systems are also considered.

Numerical solution of initial value problems in differential - algebraic equations

Toward accommodating realistic fuel chemistry in large-scale computations

Recent progress in the development of diesel surrogate fuels

Turbulent combustion modelling

https://escholarship.org/content/qt6hg08700/qt6hg08700.pdf?t=p0uw45

Experimental Study of Premixed Flames in Intense Isotropic Turbulence

A new approach for low emission gas turbines was investigated by modifying a typical production high-swirl injector (HSI) for gas turbine combustors to operate in a novel low-swirl mode (LSI). This LSI (S = 0.5) was configured in the laboratory and investigated by particle image velocimetry at firing rates of 9–87 kW (1

A comparison of the flowfields and emissions of high-swirl injectors and low-swirl injectors for lean premixed gas turbines

https://escholarship.org/content/qt7bj3f5cm/qt7bj3f5cm.pdf?t=p0hi1l

Robert K. Cheng

Papers

Experimental Study of Premixed Flames in Intense Isotropic Turbulence

A comparison of the flowfields and emissions of high-swirl injectors and low-swirl injectors for lean premixed gas turbines

Velocity and scalar characteristics of premixed turbulent flames stabilized by weak swirl

The influence of burner geometry on premixed turbulent flame propagation

The burning rate of premixed flames in moderate and intense turbulence