An extended Taylor–Aris Framework for Thermal Front Propagation in Conjugate Pipe Flows: The Plug-Flow Limit
A reduced one-dimensional unsteady description of thermal-front propagation in conjugate pipe flows is developed here for the plug-flow limit. The starting point is the analytical advection–diffusion solution for an adiabatic fluid domain, with its characteristic exponential–error-function form. The plug-flow assumptio...