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自清洁材料的研究进展
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作者 祝子媚 马兴涛 +1 位作者 吴菲 许茂东 《现代化工》 CAS CSCD 北大核心 2024年第7期31-35,40,共6页
针对自清洁材料的构筑方法进行系统整理和归纳,围绕自清洁表面亲疏水性不同(分为超疏水、超亲水、超疏水/超亲水可转变)、表面构筑机制不同进行分类阐述和总结,并对自清洁材料目前面对的困境提出发展设想。
关键词 自清洁表面 超疏水 超亲水 可转变表面 极端湿润状态
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Influence of Non-linear Radiation Heat Flux on Rotating Maxwell Fluid over a Deformable Surface: A Numerical Study
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作者 M.Mustafa A.Mushtaq +1 位作者 T.Hayat A.Alsaedi 《Communications in Theoretical Physics》 SCIE CAS CSCD 2018年第4期461-466,共6页
Mathematical model for Maxwell fluid flow in rotating frame induced by an isothermal stretching wall is explored numerically. Scale analysis based boundary layer approximations are applied to simplify the conservation... Mathematical model for Maxwell fluid flow in rotating frame induced by an isothermal stretching wall is explored numerically. Scale analysis based boundary layer approximations are applied to simplify the conservation relations which are later converted to similar forms via appropriate substitutions. A numerical approach is utilized to derive similarity solutions for broad range of Deborah number. The results predict that velocity distributions are inversely proportional to the stress relaxation time. This outcome is different from that observed for the elastic parameter of second grade fluid. Unlike non-rotating frame, the solution curves are oscillatory decaying functions of similarity variable. As angular velocity enlarges, temperature rises and significant drop in the heat transfer coefficient occurs. We note that the wall slope of temperature has an asymptotically decaying profile against the wall to ambient ratio parameter. From the qualitative view point, temperature ratio parameter and radiation parameter have similar effect on the thermal boundary layer. Furthermore, radiation parameter has a definite role in improving the cooling process of the stretching boundary.A comparative study of current numerical computations and those from the existing studies is also presented in a limiting case. To our knowledge, the phenomenon of non-linear radiation in rotating viscoelastic flow due to linearly stretched plate is just modeled here. 展开更多
关键词 rotating frame Maxwell model thermal radiation stretching sheet shooting method boundary layer flow
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