</a><span class="lineno">  243</span>&#160;                        Real r_ij = contact_neighborhood.<a class="code" href="class_s_p_h_1_1_neighborhood.html#a8a44c2a06d377d53b39479308a86edfc">r_ij_</a>[n];</div><div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;                        Real p_in_wall = p_k[index_j];</div><div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;                        Real rho_in_wall = fluid_k-&gt;DensityFromPressure(p_in_wall);