160;        <span class="keyword">class </span><a class="code" href="class_s_p_h_1_1fluid__dynamics_1_1_surface_norm_with_wall.html">SurfaceNormWithWall</a> : <span class="keyword">public</span> <a class="code" href="class_s_p_h_1_1_interaction_dynamics.html">InteractionDynamics</a>, <span class="keyword">public</span> <a class="code" href="class_s_p_h_1_1_data_delegate_contact.html">FSIContactData</a></div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;        {</div><div cla