an class="string">'BrooksCorey'</span>,matData.porousMedia.gasRelPermeability)
                this.gasRelativePermeability = RelativePermeabilityBrooksCoreyGas();
            <span class="keyword">elseif</span> strcmp(<span class="string">'PolynomialGas'</span>,matData.porousMedia.gasRelPermeability)
                this.gasRelativePermeability = RelativePermeabilityPolynomialGas();
            <span class="keyword">elseif</span> strcmp(<span class="string">'UMAT'</span>,matData.porousMedia.gasRelPermeabil