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Estimation of local heat transfer coefficient in impingement jet by solving inverse heat conduction problem with mollified temperature data
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نویسنده
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Davoodabadi Farahani Somayeh ,Kowsary Farshad ,Jamali Jalil
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منبع
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scientia iranica - 2014 - دوره : 21 - شماره : 6- B - صفحه:1870 -1879
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چکیده
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The aim of this paper is to determinate local convective heat transfercoecient slot jet impingement using inverse heat conduction methods. the sequentialspecication function method and the conjugate gradient method are used to solve theinverse heat conduction problem (ihcp) and estimate the space-variable convective heattransfer coecient. this paper proposes a procedure to smooth the temperature data bythe mollication method prior to utilizing the inverse method. the measured transienttemperature data may be obtained from locations inside the body or on its inactiveboundaries. the uncertainties in the estimated heat transfer coecient are calculatedusing bias and variance errors. the obtained results show that mollifying measured datacauses an increase in the accuracy and stability of the estimation.
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کلیدواژه
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Heat transfer coefficient; ,Impingement jet; ,Sequential function specification method; ,Conjugate gradient method; ,Mollification method.
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آدرس
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university of tehran, PhD degree student in the eld of heat transfer at the University of Tehran,, ایران, university of tehran, is Professor in the field of heat transfer at the University of Tehran, Iran, ایران, islamic azad university, Assistant Professor in the field of heat transfer at Islamic Azad University, ایران
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Authors
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