UNSTEADY CONJUGATE HEAT-TRANSFER IN A TURBULENT LIQUID FLOW IN A CHANNEL

The conjugate problem of unsteady turbulent heat transfer during step-like heat release from the wall of a plane channel is considered. Results of calculations carried out under the assumption that the turbulent-thermal-conductivity coefficient does not depend on thermal nonstationarity are in adequate agreement with experimental data for unsteady temperature fields and heat transfer coefficients. Successive stages of transient heat transfer and their time limits at various distances from the channel inlet are discussed.