Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : MacCormack

Shock Wave Capturing Numerically in Two Dimensional Supersonic Wind Tunnel for Different Configuration

Ahmed Fouad Mahdi

Engineering and Technology Journal, 2012, Volume 30, Issue 3, Pages 426-442

Numerical solutions of two dimensional Euler equations are obtained for
transonic and supersonic flows. The shock capturing method is employed to solve
compressible Euler equations by using MacCormack's time marching method that
an explicit finite-difference technique. The test case chosen is that of a transonic
and supersonic flow through a channel with a circular arc bump on the lower wall,
half wedge and extended compression corner. Computational results accurately
reproduced the flow field. In three cases, contour plots showing the important
features of the flow-field are presented. The algorithm is tested for steady-state
inviscid flows at different Mach numbers ranging from the transonic to the supersonic
regime and the results are compared with the existing numerical solutions. The
method incorporates bounded high resolution of discontinuities and is therefore well
suited to all flow regimes ranging from transonic to supersonic.

Numerical Simulation of a Two-Dimension Ramp Inlet Flow Field

Jalal M. Jalil; Ahmed F. Kridy

Engineering and Technology Journal, 2009, Volume 27, Issue 6, Pages 1118-1126

The Two-dimension ramp inlet flow field was studied with typical mode operations.
Euler equations were used for solution with no special treatment required. In this work a
solution algorithm based on finite difference MacCormack’s technique was developed to
solve mixed subsonic-supersonic flow problem through the external shock diffusers
(ramp inlet) and it is found to be converge for supercritical and critical inlet operation.