Interaction between discrete heat sources in horizontal natural convection enclosures

摘要

Steady natural convection induced by multiple discrete heat sources (DHSs) in two-dimensional horizontal enclo- sures is numerically investigated. A general combined temperature scale method is first implemented to identify the DHSs of both external and internal types. An associated concept of thermal strength is then introduced in terms of the Unified heat transfer characteristics of DHSs to analyze the interaction among them. Four different calculation cases are Detailed analyzed, and main attention has been focused on the effects of the Rayleigh number (Ra), the thermal strength (II), and the separation distance (W) on the interaction between DHSs.