<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0035-001X</journal-id>
<journal-title><![CDATA[Revista mexicana de física]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fis.]]></abbrev-journal-title>
<issn>0035-001X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Física]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0035-001X2016000400290</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Numerical study of unsteady mixed convection stagnation point flow over a stretching cylinder with sinusoidal surface temperature]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Majeed]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Javed]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ghaffari]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pop]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,International Islamic University FBAS Department of Mathematics and Statistics]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Pakistan</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,University of Cluj Faculty of Mathematics, and Statistics ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Romania</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2016</year>
</pub-date>
<volume>62</volume>
<numero>4</numero>
<fpage>290</fpage>
<lpage>298</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2016000400290&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2016000400290&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2016000400290&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The paper provides the analysis of unsteady two-dimensional mixed convection stagnation point flow over a vertical stretching cylinder with sinusoidal wall temperature. The governing partial differential equations are converted into dimensionless form by using suitable transformations. For the numerical solution of dimensionless partial differential equations, an implicit finite difference scheme namely Keller Box method is applied. The comparison is made to show the accuracy of our results with literature for some special cases. Graphs of velocity and temperature profiles are plotted for assisting and opposing flow cases at fixed value of time. The assisting buoyant flow augment the momentum boundary layer while opposing buoyant flow show opposite behavior. The thermal boundary layer thickness grows with the passage of time. Skin friction and Nusselt number are plotted for unsteadiness parameter and amplitude of surface temperature oscillations against time. It is apparent that as the values of surface temperature oscillations drops, the amplitude of oscillations in skin friction and Nusselt number also drops. Furthermore, isotherms are drawn to exhibit the influence of the amplitude of oscillations on curvature parameter with time.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Stretching cylinder]]></kwd>
<kwd lng="en"><![CDATA[boundary layer flow]]></kwd>
<kwd lng="en"><![CDATA[mixed convection]]></kwd>
<kwd lng="en"><![CDATA[finite difference method]]></kwd>
<kwd lng="en"><![CDATA[sinusoidal wall temperature]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Burde]]></surname>
<given-names><![CDATA[G.I.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Fluids Eng.]]></source>
<year>1995</year>
<volume>117</volume>
<page-range>189-91</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Heimenz]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<source><![CDATA[Dinglers Polytechn J.]]></source>
<year>1911</year>
<volume>326</volume>
<page-range>321-4</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Homann]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Z. Angew. Math. Mech.]]></source>
<year>1936</year>
<volume>16</volume>
<page-range>153-64</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Schlichting]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Bussmann]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<source><![CDATA[Luftfahrtforschung, Ser. B]]></source>
<year>1943</year>
<volume>7</volume>
</nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Eckert]]></surname>
<given-names><![CDATA[E.R.G.]]></given-names>
</name>
</person-group>
<source><![CDATA[VDI-Forschungsheft]]></source>
<year>1942</year>
<volume>416</volume>
<page-range>1-24</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ariel]]></surname>
<given-names><![CDATA[P.D.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Appl. Mech.]]></source>
<year>1994</year>
<volume>61</volume>
<page-range>976-8</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Altan]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Oh]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Gegel]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Metal Forming Fundamentals and Applications]]></source>
<year>1979</year>
<publisher-loc><![CDATA[Metals Park, Michigan, USA ]]></publisher-loc>
<publisher-name><![CDATA[American Society of Metals]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Fisher]]></surname>
<given-names><![CDATA[E.G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Extrusion of Plastics]]></source>
<year>1976</year>
<publisher-loc><![CDATA[New York, USA ]]></publisher-loc>
<publisher-name><![CDATA[Wiley]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chiam]]></surname>
<given-names><![CDATA[T.C.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Phys. Soc. Jpn]]></source>
<year>1994</year>
<volume>63</volume>
<page-range>2443-55</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mahapatra]]></surname>
<given-names><![CDATA[T. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Gupta]]></surname>
<given-names><![CDATA[A.S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Acta Mechanica]]></source>
<year>2001</year>
<volume>152</volume>
<page-range>191-6</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mahapatra]]></surname>
<given-names><![CDATA[T. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Gupta]]></surname>
<given-names><![CDATA[A.S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Heat Mass Transfer]]></source>
<year>2002</year>
<volume>38</volume>
<page-range>517-21</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nazar]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Amin]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Filip]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Pop]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<source><![CDATA[Int. J. Eng. Science]]></source>
<year>2004</year>
<volume>42</volume>
<page-range>1241-53</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mustafaa]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Hayat]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Pop]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Asghar]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Obaidat]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Int. J. Heat Mass Transfer]]></source>
<year>2011</year>
<volume>54</volume>
<page-range>255588-94</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bhattacharyya]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Mukhopadhyay]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Layek]]></surname>
<given-names><![CDATA[G.C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Int. J. Heat and Mass Transfer]]></source>
<year>2011</year>
<volume>54</volume>
<page-range>308-13</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sharma]]></surname>
<given-names><![CDATA[P.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Singh]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Journal of Applied fluid mechanics]]></source>
<year>2009</year>
<volume>2</volume>
<page-range>13-21</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bhattacharyya]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Vajravelu]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<source><![CDATA[Commun. Nonlinear Sci. Num. Simulation]]></source>
<year>2012</year>
<volume>17</volume>
<page-range>2728-34</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Javed]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Ghaffari]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ahmad]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Canadian Journal of Physics]]></source>
<year>2015</year>
<volume>93</volume>
<page-range>1138-43</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[C.Y.]]></given-names>
</name>
</person-group>
<source><![CDATA[Physics of Fluids]]></source>
<year>1988</year>
<volume>31</volume>
<page-range>466-8</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ishak]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Nazar]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Pop]]></surname>
<given-names><![CDATA[Ioan]]></given-names>
</name>
</person-group>
<source><![CDATA[Convers Manage]]></source>
<year>2008</year>
<volume>49</volume>
<page-range>3265-9</page-range></nlm-citation>
</ref>
<ref id="B20">
<label>20</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ishak]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Nazar]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Pop]]></surname>
<given-names><![CDATA[Ioan]]></given-names>
</name>
</person-group>
<source><![CDATA[Applied Mathematical Modelling]]></source>
<year>2008</year>
<volume>32</volume>
<page-range>2059-66</page-range></nlm-citation>
</ref>
<ref id="B21">
<label>21</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mukhopadhyay]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Journal of Petroleum Science and Engineering]]></source>
<year>2012</year>
<volume>96</volume>
<page-range>73-8</page-range></nlm-citation>
</ref>
<ref id="B22">
<label>22</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Abbas]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Majeed]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Javed]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<source><![CDATA[Heat Transfer Research]]></source>
<year>2013</year>
<volume>44</volume>
<page-range>703-18</page-range></nlm-citation>
</ref>
<ref id="B23">
<label>23</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bachok]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Ishak]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Malaysian J. Mathematical Sci.]]></source>
<year>2010</year>
<volume>4</volume>
<page-range>159-69</page-range></nlm-citation>
</ref>
<ref id="B24">
<label>24</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ashorynejad]]></surname>
<given-names><![CDATA[H. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Ashorynejad]]></surname>
<given-names><![CDATA[H. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Sheikholeslami]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Pop]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Ganji]]></surname>
<given-names><![CDATA[D.D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Heat and Mass Transfer]]></source>
<year>2013</year>
<volume>49</volume>
<page-range>427-36</page-range></nlm-citation>
</ref>
<ref id="B25">
<label>25</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Javed]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Mustafa]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<source><![CDATA[Asia-Pacific J. Chem. Eng.]]></source>
<year>2015</year>
<volume>10</volume>
<page-range>184-92</page-range></nlm-citation>
</ref>
<ref id="B26">
<label>26</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Majeed]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Javed]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Ghaffari]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Rashidi]]></surname>
<given-names><![CDATA[M. M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Alexandria Engineering Journal]]></source>
<year>2015</year>
<volume>54</volume>
<page-range>1029-36</page-range></nlm-citation>
</ref>
<ref id="B27">
<label>27</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Javed]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Majeed]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Mustafa]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<source><![CDATA[Rev. Mex. Fis.]]></source>
<year>2015</year>
<volume>61</volume>
<page-range>450-7</page-range></nlm-citation>
</ref>
<ref id="B28">
<label>28</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Merkin]]></surname>
<given-names><![CDATA[J. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Pop]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<source><![CDATA[Int. J. Heat and Mass Transfer]]></source>
<year>2000</year>
<volume>43</volume>
<page-range>611-21</page-range></nlm-citation>
</ref>
<ref id="B29">
<label>29</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ishak]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Nazar]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Pop]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<source><![CDATA[Meccanica]]></source>
<year>2009</year>
<volume>44</volume>
<page-range>369-75</page-range></nlm-citation>
</ref>
<ref id="B30">
<label>30</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cebeci]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Bradshaw]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Physical and Computational Aspects of Convective Heat Transfer]]></source>
<year>1984</year>
<publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[Springer]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
