The stability characteristics of a premixed, swirl-stabilized flame were studied to determine the. effects of hydrogen addition on flame stability under fuel-lean conditions. The burner. configuration consisted of a centerbody with an annular, premixed methane/air jet.
eigenvalue - (mathematics) any number such that a given square matrix minus that number times the identity matrix has a zero determinant. characteristic root of a square matrix, eigenvalue of a matrix, eigenvalue of a square matrix. value - a numerical quantity measured or assigned or computed; the value assigned was 16 milliseconds.
The values of the first eigen pulsation of the shaft for different inclination ratios and different tapering are presented in Fig. Any eigen vector of H is an eigen vector of K, as long as H has distinct eigen values. The two structural invariants namely the sum of absolute eigen values (WD[SIGMA]) and maximum absolute eigen value (WDmax) is derived from the eigen spectrum of the characteristic equation of [WD] matrix using the MATLAB software.