1. The primary objective of the static test conducted at Vought in 1993 was to produce parametric design data that would aid in the design and performance prediction of highly vectored cascades and allow assessment of the pivot-door reversing performance. The effects of the configuration design variables on performance for cascades and the pivot-door are discussed. Discharge coefficients (CD) and axial force for the tested cascade array will be compared with analytical predictions using both 1D and CFD tools discussed earlier. Test Results v
2. The test results for some of the design variables discussed earlier are presented in Figures 8-12. Reverser discharge coefficient (CD) and axial force (FX)are shown in Figures 8 and 9 as a function of NPR at several exit open areas for the 60/0 cascade array. The variation of CD with ramp angle, shown in Figure 10. was very small.
3. RAMPANTcomputations took place on an IBM RS/6000-550 machine. 1500 iterations to converge four orders of magnitude was required resulting in 100 minutes CPU time. The initial solution required 3.5 megabytes of memory. Grid adaption and convergence acceleration techniques (multi-grid) were utilized. The k-e turbulence model was used for a y+ value ranging from 40 to 500. A y+ value below 100 was maintained around all cascade blades.