Sharif University of Technology Scientia Iranica 1026-3098 23 4 2016 08 01 Experimental estimation heat flux and heat transfer coefficient by using inverse methods Experimental estimation heat flux and heat transfer coefficient by using inverse methods 1777 1786 3925 10.24200/sci.2016.3925 EN S.D. Farahani Department of Mechanical Engineering, University College of Engineering, University of Tehran, Tehran, P.O. Box 11155-4563, Iran. A.R. Najafi Department of Mechanical Engineering, University College of Engineering, University of Tehran, Tehran, P.O. Box 11155-4563, Iran. F. Kowsary Department of Mechanical Engineering, University College of Engineering, University of Tehran, Tehran, P.O. Box 11155-4563, Iran. M. Ashjaee Department of Mechanical Engineering, University College of Engineering, University of Tehran, Tehran, P.O. Box 11155-4563, Iran. Journal Article 2016 08 27 The purpose of this paper is to present experimental applications of the inverse heat transfer methods (conjugate gradient method and sequential method). Three experiments are designed to estimate the heat ux and the heat transfer coecients. In the third experiment, convective heat transfer coecient is estimated directly and indirectly. In direct estimation, the conjugate gradient method with adjoint equation is used. The results show that inverse heat transfer methods are able to estimate the desired parameters with good accuracy in experimental state when mathematical model and boundary condition are correct and appropriate with experimental model. https://scientiairanica.sharif.edu/article_3925_1340ccf24722f02bbc81b3822ce23d4c.pdf