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您的检索式：作者名="Mainul Hasan"
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| 1 | Semi-continuous casting of magnesium alloy AZ91 using a filtered melt delivery system显示文摘A 3-D numerical simulation of an industrial-sized slab caster for magnesium alloy AZ91 has been carried out for the steady state operational phase of the caster.The simulated model consists of an open-top melt delivery system fitted with a porous filter near the hot-top.The melt flow through the porous filter was modeled on the basis of Brinkmann-Forchimier-Extended non-Darcy model for turbulent flow.An in-house 3-D CFD code was modified to account for the melt flow through the porous filter.Results are obtained for four casting speeds namely,40,60,80,and 100 mm/min.The metal-mold contact region as well as the convective heat transfer coefficient at the mold wall were also varied.In addition to the above,the Darcy number for the porous media was also changed.All parametric studies were performed for a fixed inlet melt superheat of 64℃.The results are presented pictorially in the form of temperature and velocity fields.The sump depth,mushy region thickness,solid shell thickness at the exit of the mold and axial temperature profiles are also presented and correlated with the casting speed through regression analysis.©2015 Production and hosting by Elsevier B.V.on behalf of Chongqing University. | Mainul Hasan Latifa Begum | 2015 | Journal of Magnesium and Alloys2015，3，4： | 2 |
| 2 | Effect of Different Fertilizer Formulations on Growth and Chlorophyll Content of Greenhouse Grown Macadamia Plants in a Micro Drip-Irrigation System显示文摘 | Charturong Chanseetis Md. Mainul Hasan Kanyaratt Supaibulwatana Md. Mahmudul Hasan | 2012 | Journal of Agricultural Science and Technology(B)2012，2，6： | 0 |
| 3 | On numerical modeling of low-head direct chill ingot caster for magnesium alloy AZ31显示文摘A comprehensive 3D turbulent CFD study has been carried out to simulate a Low-Head(LH)vertical Direct Chill(DC)rolling ingot caster for the common magnesium alloy AZ31.The model used in this study takes into account the coupled laminar/turbulent melt flow and solidification aspects of the process and is based on the control-volume finite-difference approach.Following the aluminum/magnesium DC casting industrial practices,the LH mold is taken as 30 mm with a hot top of 60 mm.The previously verified in-house code has been modified to model the present casting process.Important quantitative results are obtained for four casting speeds,for three inlet melt pouring temperatures(superheats)and for three metal-mold contact heat transfer coefficients for the steady state operational phase of the caster.The variable cooling water temperatures reported by the industry are considered for the primary and secondary cooling zones during the simulations.Specifically,the temperature and velocity fields,sump depth and sump profiles,mushy region thickness,solid shell thickness at the exit of the mold and axial temperature profiles at the center and at three strategic locations at the surface of the slab are presented and discussed. | Mainul Hasan Latifa Begum | 2014 | Journal of Magnesium and Alloys2014，2，4： | 0 |
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