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© Laser Pulse Heating Of Steel Surface: Consideration Of Phase- Change Process Bin-Mansoor, S; Yilbas, BS TAYLOR FRANCIS INC, NUMERICAL HEAT TRANSFER PART A-APPLICATIONS; pp: ; Vol: 50 King Fahd University of Petroleum & Minerals Summary Laser pulse heating and the phase-change process taking place in the region irradiated by a laser beam are considered. A numerical method is employed to predict temperature field and recessing velocities of evaporating and melting surfaces. An experiment is conducted to compare the cavity size obtained from experiment with the prediction. The prediction of the recession velocity of the evaporating surface is compared with the results of a one-dimensional closed-form solution. It is found that the mushy zones at the solid-liquid and liquid-vapor interfaces are visible at some depth below the irradiated surface. The recession velocity of the evaporating front velocity follows almost the temporal variation of the laser heating pulse; moreover, recession velocity of the solid-liquid interface is higher than that corresponding to the liquid-vapor interface. The cavity shape predicted from the present simulation agrees well with experiment. In addition, the prediction of the recession velocity of the evaporating surface agrees well with the closed-form solutions. References: AFANASIEV YV, 1997, APPL PHYS A-MATER, V64, P561 ARMON E, 1991, NUMER HEAT TRANSFE B, V19, P85 BARILLOT P, 1990, NUMERICAL HEAT TRA B, V17, P245 BASU B, 1990, INT J HEAT MASS TRAN, V33, P1149 BEASON JD, 1990, NUMER HEAT TRANSFE A, V17, P349 CHAI JC, 1993, NUMER HEAT TR B-FUND, V24, P373 CHAKRABORTY N, 2004, NUMER HEAT TR A-APPL, V46, P1009, DOI Copyright: King Fahd University of Petroleum & Minerals;

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© / CHEN JK, 2001, NUMER HEAT TR A-APPL, V40, P1 CHEN JK, 2002, NUMER HEAT TR B-FUND, V42, P1 CHEN JK, 2003, NUMER HEAT TR A-APPL, V44, P705, DOI / CHENG TB, 2004, NUMER HEAT TR A-APPL, V46, P633, DOI / CHOWDHURY IH, 2003, NUMER HEAT TR A-APPL, V44, P219, DOI / DAI W, 1999, NUMER HEAT TR A-APPL, V36, P251 DAI WZ, 2003, NUMER HEAT TR B-FUND, V43, P509, DOI / DAI WZ, 2004, NUMER HEAT TR B-FUND, V46, P447, DOI / HOASHI E, 2002, NUMER HEAT TR A-APPL, V41, P783 HUANG CH, 2004, NUMER HEAT TR A-APPL, V46, P695, DOI / IWAMOTO M, 1998, NUMER HEAT TR A-APPL, V34, P791 KALYON M, 2001, J PHYS D APPL PHYS, V34, P3303 KIM K, 2004, NUMER HEAT TR A-APPL, V46, P23, DOI / KIM MJ, 1995, NUMER HEAT TR A-APPL, V27, P717 KIM WS, 1997, NUMER HEAT TR A-APPL, V31, P703 KROSS J, 1993, J PHYS D, V26, P481 LEE SH, 2003, NUMER HEAT TR A-APPL, V44, P833, DOI / LEE SH, 2005, NUMER HEAT TR A-APPL, V48, P59, DOI / LIU CL, 1997, MAT SCI ENG B-SOLID, V47, P70 MATSUNAWA A, 1997, J PHYS D APPL PHYS, V30, P798 MHAISEKAR A, 2005, NUMER HEAT TR A-APPL, V47, P849, DOI / MURPHY J, 1992, NUMER HEAT TR A-APPL, V22, P109 PRETOT S, 2003, NUMER HEAT TR A-APPL, V43, P307 RATH P, 2003, NUMER HEAT TR A-APPL, V44, P183, DOI / RAVINDRAN K, 1994, NUMER HEAT TR A-APPL, V26, P601 ROGERS JW, 2004, NUMER HEAT TR A-APPL, V45, P737, DOI / ROSTAMI AA, 1997, NUMER HEAT TR A-APPL, V31, P783 ROY S, 1993, INT J HEAT MASS TRAN, V36, P3515 SARKAR S, 2002, NUMER HEAT TR A-APPL, V42, P307, DOI / SHUJA SZ, 1998, NUMER HEAT TR A-APPL, V33, P315 SIMON G, 1993, J PHYS D APPL PHYS, V26, P862 Copyright: King Fahd University of Petroleum & Minerals;

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© SMITH GD, 1985, NUMERICAL SOLUTION P SONTI N, 1989, NUMER HEAT TRANSFER, V16, P351 TAN HP, 2004, NUMER HEAT TR A-APPL, V46, P807, DOI / TIAN W, 2004, NUMER HEAT TR A-APPL, V46, P115, DOI / WONG SK, 1999, NUMER HEAT TR B-FUND, V35, P211 XU B, 2003, NUMER HEAT TR B-FUND, V44, P45, DOI / YEVTUSHENKO A, 2005, NUMER HEAT TR A-APPL, V47, P899, DOI / YILBAS BS, 1988, PRAMANA-J PHYS, V31, P1 YILBAS BS, 1990, P I MECH ENG B-J ENG, V204, P105 YILBAS BS, 1992, OPT LASER ENG, V17, P69 YILBAS BS, 1995, INT J MACH TOOL MANU, V35, P1047 YILBAS BS, 1999, NUMER HEAT TR A-APPL, V36, P563 YILBAS BS, 2000, NUMER HEAT TR A-APPL, V38, P423 YILBAS BS, 2001, OPT QUANT ELECTRON, V33, P1241 YILBAS BS, 2002, INT J HEAT MASS TRAN, V45, P1571 YILBAS BS, 2002, INT J NUMER METHOD H, V12, P817, DOI / YILBAS BS, 2002, J PHYS D APPL PHYS, V35, P1210 YILBAS BS, 2003, P I MECH ENG B-J ENG, V217, P977 YILBAS BS, 2004, NUMER HEAT TR A-APPL, V46, P255, DOI / ZHANG L, 2005, NUMER HEAT TR A-APPL, V48, P21, DOI / ZHANG YW, 1999, INT J HEAT MASS TRAN, V42, P1775 ZHANG ZY, 2001, NUMER HEAT TR A-APPL, V40, P497 ZHOU JH, 2004, NUMER HEAT TR A-APPL, V45, P415, DOI / For pre-prints please write to: Copyright: King Fahd University of Petroleum & Minerals;

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