Discover the physics of heat pipes and the hard thermal limits that decide whether they thrive or fail. We break down capillary action, phase-change heat transfer, wick structures, working fluids, vapor flow dynamics, plus the critical limits — capillary, boiling, entrainment, sonic, and viscous — that determine real-world performance in mechanical engineering.

Keywords: heat pipe physics, heat pipe thermal limits, heat pipe working principle, capillary limit heat pipe, boiling limit heat pipe, entrainment limit, sonic limit heat pipe, heat pipe wick structure, heat pipe working fluid, phase change heat transfer, electronics cooling heat pipe, advanced heat transfer, thermal management mechanical engineering, heat pipe design, heat pipe failure modes, two-phase heat transfer