  By definition, Manufactured turbulence(MT) is purported to mimic physical
turbulence rather than model it. The MT equations are constrained to be simple
to solve and provide an inexpensive surrogate to Navier-Stokes based Direct
Numerical Simulations (DNS) for use in engineering applications or theoretical
analyses. In this article, we investigate one approach in which the linear
inviscid aspects of MT are derived from a linear approximation of the
Navier-Stokes equations while the non-linear and viscous physics are
approximated via stochastic modeling. The ensuing Langevin MT equations are
used to compute planar, quadratic turbulent flows. While much work needs to be
done, the preliminary results appear promising.
