Retrieving the heat transfer coefficient for jet impingement from transient temperature measurements

摘要: Abstract Algorithm of retrieving the heat transfer coefficient (HTC) from transient temperature measurements is presented. The unknown distributions two types boundary conditions: and flux are parameterized using a small number user defined functions. solutions direct conduction problems with known expressed as superposition auxiliary fields multiplied by parameters. Inverse problem formulated least squares fit calculated measured temperatures cast in form sum objective first results originates an inverse for second comes reproducing flux. final function obtained enforcing constant time value coefficient. This approach leads to substantial regularization results, when compared standard technique, where HTC separately reconstructed on boundary. validation numerical procedure carried out reconstructing distribution simulated laden stochastic error. proposed also used reconstruct physical experiment heating cylindrical sample impinging jet.