This work aims at the comparison between a classical regularization technique and a method within the Bayesian framework, as applied to the solution of an inverse heat conduction problem. The two solution approaches compared are Alifanov's iterative regularization technique and the Markov chain Monte Carlo method. The inverse problem examined in this work deals with the estimation of a transien...

double-diffusive mixed convection in a lid-driven square enclosure filled with al2o3-water is numerically investigated. two-dimensional nonlinear governing equations are discretized using the control volume method and hybrid scheme. the equations are solved using simpler algorithm. the results are displayed in the form of streamlines, isotherms, and iso-concentrations when the richardson number...

In this paper, the thermal properties of three dense graded asphalt mixtures, 20 mm DBM, AC 14, and 6, are presented. Density air voids compacted specimens also shown. Thermal conductivity was measured in laboratory for non-aged, short-term aged long-term mixtures at different temperatures 19 (±1) oC, 65 (±5) 80 oC. Specific heat capacity diffusivity were calculated from equations derived liter...

The local time-dependent surface heat transfer coefficients for plate finned-tube heat exchangers are estimated in a three-dimensional inverse heat conduction problem. The inverse algorithm utilizing the Steepest Descent Method (SDM) and a general purpose commercial code CFX4.4 is applied successfully in this study in accordance with the simulated measured temperature distributions on the fin s...

Active infrared thermography is an attractive and highly reliable technique used for the non-destructive evaluation of test objects. In this paper, defect detection on subsurface STS304 metal specimen was performed by applying line-scanning method to induction thermography. general, camera are fixed in thermography, but can excite a uniform heat source because relative movement occurs. After th...

In this paper, a methodology for work material constitutive model based calculations of forces, stress and temperature distributions in orthogonal machining are introduced. Oblique moving band heat source theory is utilized and combined with modified Oxley’s parallel shear zone theory. Non-uniform heat intensity at the tool-chip interface is obtained from the predicted stress distributions util...

an investigation has been carried out on the temperature of a biscuit on the cooling line of razavi food industries company. for thispurpose, the time variations of biscuit’s top surface temperature in traveling from oven to packing station on the conveyor packing station by conveyors has been studied. the fourier field equation for transient heat transfer is used as the basis for the determini...