Experimental and numerical study of conjugate heat transfer in a horizontal channel heated from below

Conjugate heat transfer has significant relevance to a number of thermal sy stems and techniques which demand stringent temperature control, such as el ectronic cooling and chemical vapor deposition. A detailed experimental and numerical stud's is carried out to investigate conjugate heat transfer in a common configuration consisting of a horizontal channel with a heated sec tion. Experimental data obtained from this study provides physical insight into conjugate heat transfer effects and facilitates validation of numerica l conjugate heat transfer models. The basic characteristics of the flow and the associated thermal transport are studied. The numerical model is used to carry out a parametric study of operating conditions and design variable s, thus allowing for the characterization Of the conjugate heat transfer ef fects. It is found that the numerically predicted flow field and heat trans fer results validate well to experimental observations. Conjugate heat tran sfer is shown to significantly, affect the temperature level and uniformity at the heated section's surface, channel walls and the gas phase, thus imp acting the rate of heat transfer. This study provides guidelines and fundam ental insight into temperature control during the combined modes of heat tr ansfer, with implications to various thermal manufacturing methods.