  Relativistic dissipative hydrodynamic model at finite density is a promising
tool for analyzing the dense QCD matter created in the beam energy scan
experiments. The hydrodynamic frame can be chosen in the direction of energy
flow, which is called the Landau frame, or conserved charge flow, which is
called the Eckart frame. In this study, I investigate the stability and
causality of full second-order relativistic hydrodynamic equations in the two
frames. Then the effects of frame choice on hydrodynamic variables and
experimental observables are estimated numerically and are found to be visible
on the flow but limited on the rapidity distributions.
