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040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aM.Sc
099 _aCai01.13.11.M.Sc.2020.Ma.N
100 0 _aMahmoud Ashraf Abdelmohsen Elsayed
245 1 0 _aNumerical investigation of the deflagration of turbulent premixed flames forairpremixed lpg and hydrogen in a semi-confinedobstructed compartment /
_cMahmoud Ashraf Abdelmohsen Elsayed ; Supervised Mohamed Ahmed Yehia , Hatem Omar Haridy
246 1 5 _aالتحقيق العددى لأشتعال كلا من لهب غاز البترول المسال وغاز الهيدروجين المضطرب سابق الخلط مع الهواء داخل غرفة مقيدة شبه محدودة
260 _aCairo :
_bMahmoud Ashraf Abdelmohsen Elsayed ,
_c2020
300 _a151 P. :
_bcharts , maps ;
_c30cm
502 _aThesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Mechanical Power Engineering
520 _aThis study presents a numerical study of the transient events following the ignition of a flammable mixture of air premixed with hydrogen or LPG at different equivalence ratios inside a small semi-confined compartment obstructed with various obstacles to induce different levels of turbulence. The compartment and the data used for validation are obtained from previous experimental work that was carried out in Sydney University, Australia.The configuration of the rig is a square cross-section of 50 x 50 with length of 250 mm made of Perspex to allow laser diagnosis to detect the position of the flame front at different time steps. The numerical facility used is an in-house code named "PUFFIN" developed by a collaborative group in Loughborough University. This numerical tool applies large eddy simulation techniques with the turbulence treated using a dynamic Smagornisky model and the combustion is treated by a modified dynamic flame-let surface density model
530 _aIssued also as CD
653 4 _aDynamic Smagornisky model
653 4 _aEquivalence ratios
653 4 _aSmall semi-confined compartment
700 0 _aHatem Omar Haridy ,
_eSupervisor
700 0 _aMohamed Ahmed Yehia ,
_eSupervisor
905 _aNazla
_eRevisor
905 _aShimaa
_eCataloger
942 _2ddc
_cTH
999 _c79963
_d79963