A Study on Hover Performance of Ducted Fans for an Unmanned VTOL Aircraft

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/ijae/volume-2022/4045778/figures/4045778.fig.009a.svgz" name="4045778.fig.009a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Thrust coefficient</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/ijae/volume-2022/4045778/figures/4045778.fig.009b.svgz" name="4045778.fig.009b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Power coefficient</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/ijae/volume-2022/4045778/figures/4045778.fig.009c.svgz" name="4045778.fig.009c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Duct thrust ratio</td></tr><tr class="fig-image" id="d"><td><object data="https://static.hindawi.com/articles/ijae/volume-2022/4045778/figures/4045778.fig.009d.svgz" name="4045778.fig.009d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(d) </b>Figure of merit</td></tr></table>

<div>Hover performance of the asymmetric ducted fan.</div>

International Journal of Aerospace Engineering

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Figure 9

Figure 9: A Study on Hover Performance of Ducted Fans for an Unmanned VTOL Aircraft 