Opposed-flow flame spread and extinction in mixed-convection boundary layers

1989 ◽  
Vol 22 (1) ◽  
pp. 1495-1500 ◽  
Author(s):  
R.A. Altenkirch ◽  
M. Vedha-Nayagam
Keyword(s):  
Mixed Convection ◽  
Boundary Layers ◽  
Flame Spread ◽  
Opposed Flow ◽  
Convection Boundary

scholarly journals Lie Group Analysis and Similarity Solutions for Mixed Convection Boundary Layers in the Stagnation-Point Flow toward a Stretching Vertical Sheet

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Sarkhosh Seddighi Chaharborj ◽  
Fudziah Ismail ◽  
Yousof Gheisari ◽  
Reza Seddighi Chaharborj ◽  
Mohd Rizam Abu Bakar ◽  
...  
Keyword(s):  
Differential Equations ◽  
Mixed Convection ◽  
Stagnation Point ◽  
Boundary Layers ◽  
Lie Group ◽  
Nonlinear Partial Differential Equations ◽  
Group Analysis ◽  
Stagnation Point Flow ◽  
Group Method ◽  
Convection Boundary

An analysis for the mixed convection boundary layers in the stagnation-point flow toward a stretching vertical sheet is carried out via symmetry analysis. By employing Lie group method to the given system of nonlinear partial differential equations, we can obtain information about the invariants and symmetries of these equations. This information can be used to determine the similarity variables that will reduce the number of independent variables in the system. The transformed ordinary differential equations are solved numerically for some values of the parameters involved using fifth-order Improved Runge-Kutta Method (IRK5) coupled with shooting method. The features of the flow and heat transfer characteristics are analyzed and discussed in detail. Both cases of assisting and opposing flows are considered. This paper' results in comparison with known results are excellent.

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