Secondary Flow Loss Reduction in a Turbine Cascade with a Linearly Varied Height Streamwise Endwall Fence

Figure 8

Contours of nondimensional streamwise vorticity (𝑐ℎ𝜔_𝑠/𝑐₂).

(a) Baseline at 𝑥/𝑎=0.9

(b) Baseline at 𝑥/𝑎=1.06

(c) With optimum fence at 𝑥/𝑎=0.9

(d) With optimum fence at 𝑥/𝑎=1.06

(e) With fence of ℎ_𝑓/𝛿=4/3 at 𝑥/𝑎=0.9

(f) With fence of ℎ_𝑓/𝛿=4/3 at 𝑥/𝑎=1.06