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Based on a viscous hydrodynamic model with anisotropically perturbed Gubserflow and isothermal Cooper-Frye freezeout at early times, we analyticallycompute the flow harmonics $v_n(p_T)$ and study how they scale with theharmonic number $n$ and transverse momentum, as well as the system size, shearand bulk viscosity coefficients, and collision energy. In particular, we findthat the magnitude of shear viscous corrections grows linearly with $n$. Themixing between different harmonics is also discussed. While this model israther simple as compared to realistic heavy-ion collisions, we argue that thescaling results presented here may be meaningfully compared to experimentaldata collected over many energies, system sizes, and geometries.

Flow harmonics within an analytically solvable viscous hydrodynamic model