es abstract methods that must be implemented in the derived <b>sub-classes</b>:</p><div><ul><li><a href="Nusselt_Sphere_RanzMarshall.html">Nusselt_Sphere_RanzMarshall</a></li><li><a href="Nusselt_Sphere_Whitaker.html">Nusselt_Sphere_Whitaker</a></li></ul></div><pre class="codeinput"><span class="keyword">classdef</span> Nusselt &lt; handle
</pre><h2 id="2">Constant values</h2><pre class="codeinput">    properties (Constant = true, Access = public)
        <span class="comment">% Types of model</span>
      