Abstract
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Highlights
FORCED convection appears in many practical applications such as heat exchangers design, design of cooling systems in integrated circuits, design of fins, and design of the cooling system for turbine blades
Forced convection is not a new topic, there are still unsolved problems related to this domain such as cases with nonuniform boundary conditions (BCs) for example in conjugate problems
The aim of the present work is to extend the Flexible Profile Compact Thermal Model (FP-compact thermal model (CTM)) previously developed for circular duct to the case of laminar flow in rectangular ducts, to inherit its advantages: high precision, low CPU time and ability to treat arbitrary boundary conditions and inlet
Summary
FORCED convection appears in many practical applications such as heat exchangers design, design of cooling systems in integrated circuits, design of fins, and design of the cooling system for turbine blades. A new method is proposed, which is a bridge between the oversimplified HTC model and complicated CFD simulation This method, which is known as the Flexible Profile Compact Thermal Model (FP CTM), allows using nonuniform conditions as well as uniform ones. Morini [4] developed an analytic solution for laminar forced convection in a rectangular duct with axially uniform heat flux and circumferentially uniform temperature BCs. The solution is valid in the fully developed thermal zone. Smith and Nochetto [6] performed numerical analysis for laminar convection in rectangular ducts for aspect ratio from 1 to 100 and for parallel plates They used in their analysis axially uniform heat flux with circumferentially uniform temperature BCs. Avci and Aydin [7] used finite volume method to study thermally developing forced convection in a microtube. Nusselt number, which is the dimensionless representation of HTC, is calculated to model this set of problems
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