  This work covers the effect of droplet deformation on its evaporation rate
under convective flow conditions. The evaporation behavior of a freely
deforming droplet of single component jet fuel surrogate, n-decane, is
investigated by varying Weber number ($We$) from $1-12$ and Reynolds number
($Re$) from $25$ to $120$ under high-pressure environment. These studies
utilize interface capturing Direct Numerical Simulation (DNS). To validate the
accuracy of the solver, the results are compared against correlations by
Abramzon and Sirignano (Int. Journal of Heat and Mass Transfer, 1989) and are
found to be in good agreement with a maximum difference of $5 \%$.
\textcolor{black}{A quasi-steady evaporation approach is implemented to
simulate this problem.} The results suggest a weak dependency of normalized
total evaporation rate (${\dot{m}}_{ND}$) on Weber number at low $Re$ flow.
However, a strong correlation is seen between the total evaporation rate and
$We$ at high $Re$. $20 \%$ enhancement in ${\dot{m}}_{ND}$ is observed at
$We=12$ (highly deformed shape) when compared to $We=1$ at $Re=120$.
  In these cases, the distribution of local evaporation flux on the droplet is
found to be proportional to its curvature up to the point of flow separation
which agrees with low $Re$ theories on droplet evaporation by Tonini and
Cossalli (International Journal of Heat and Mass Transfer 2013), Palmore
(Journal of Heat Transfer 2022). Beyond the flow separation point, evaporation
flux distribution depends on the boundary layer development and flow evolution
downstream of the droplet. For highly deformed droplets, a larger wake region
creates favorable fuel vapor gradients and promotes mixing in droplet wake,
hence higher evaporation flux.
