  The sun's chromosphere is a highly dynamic, partially-ionized region where
spicules (hot jets of plasma) form. Here we present a two-fluid MHD model to
study the chromosphere, which includes ion-neutral interaction and frictional
heating. Our simulation recovers a magnetic canopy shape that forms quickly,
but is also quickly disrupted by the formation of a jet. Our simulation
produces a shock self-consistently, where the jet is driven by the frictional
heating, which is much greater than the ohmic heating. Thus, our simulation
demonstrates that the jet could be driven purely by thermal effects due to
ion-neutral collisions and not by magnetic reconnection. We plan to improve the
model to include photo-chemical effects and radiation.
