Top: Turbulent kinetic energy profile as a function of fractional mass for an evolutionary model of a 5 M_⊙ star computed using the TCM1 with a central helium abundance of Y_c = 0.6. Bottom: Temperature gradient of the model (∇_model, blue dashed line). The purple and orange lines indicate the radiative ∇_rad and adiabatic ∇_ad temperature gradients, respectively. The vertical gray dashed line denotes the Schwarzschild boundary.