# A HYBRID ADVECTION SCHEME FOR CONSERVING ANGULAR MOMENTUM ON A REFINED CARTESIAN MESH

@article{Byerly2014AHA, title={A HYBRID ADVECTION SCHEME FOR CONSERVING ANGULAR MOMENTUM ON A REFINED CARTESIAN MESH}, author={Zachary D. Byerly and Bryce Adelstein-Lelbach and Joel E. Tohline and Dominic C. Marcello}, journal={The Astrophysical Journal Supplement Series}, year={2014}, volume={212} }

We test a new “hybrid” scheme for simulating dynamical fluid flows in which cylindrical components of the momentum are advected across a rotating Cartesian coordinate mesh. This hybrid scheme allows us to conserve angular momentum to machine precision while capitalizing on the advantages offered by a Cartesian mesh, such as a straightforward implementation of mesh refinement. Our test focuses on measuring the real and imaginary parts of the eigenfrequency of unstable nonaxisymmetric modes that…

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