This research article proposes an improved Fourier law of heat conduction (Cattaneo-Christov) in presence of heat source/sink. The heat transport characteristics are modeled for mixed convective stagnation point flow by a Riga plate. Flow is generated due to linear stretching velocity. The partial differential system is changed to ordinary differential system through implementing appropriate transformations. Series solutions are developed through semi-analytical method called as homotopy analysis method. Present research article is related to the improved Fourier law of heat conduction (Cattaneo-Christov) over a linear stretchable surface of Riga plate when fluid saturates porous space. The main outcomes of present communication are summarized as: (i) velocity of material particles decreases subject to larger inverse Darcy-number while it enhances via velocity ratio and magnetic parameters (ii) temperature distribution as well as layer thickness enhance for higher estimations of Eckert number and heat source parameter while it decays against Prandtl number (iii) skin friction coefficient decreases through higher values of inverse Darcy number and mixed convection parameter.

该研究文章提出了一种在存在热源/散热器的情况下改进的热传导傅里叶定律（Cattaneo-Christov）。通过里加板对混合对流停滞点的热传递特性进行建模。由于线性拉伸速度而产生流动。通过实施适当的转换，将偏微分系统更改为普通微分系统。系列解决方案是通过称为同态分析方法的半分析方法开发的。当前的研究文章与当流体使多孔空间饱和时在里加板的线性可拉伸表面上的改进的傅里叶热传导定律（Cattaneo-Christov）有关。当前交流的主要成果总结如下：