  We perform direct numerical simulations of magnetohydrodynamic (MHD)
turbulence with kinetic energy and cross helicity injections at large scales.
We observe that the cross helicity changes sign as we go from large and
intermediate scales to small scales. In addition, the magnetic reconnections
are strongest at the regions where the cross helicity changes sign and becomes
smallest in magnitude. Thus, our simulations provide an important window to
explore the regions of magnetic reconnections in nonlinear MHD.
