The article informs about a research paper by Bing Shi and Ye Jin, Shanghai Jiao Tong University at Shanghai, Peoples' Republic of China focusing on the formulation of an assembly behaviour dynamic model of reheat stop valve assembly based on virtual prototyping. The study includes fluid dynamic behaviour analysis which is implemented for the dynamic torque characteristics of reheat stop valve and for the thermal load distribution of the valve shaft-bush subassembly by finite elements method.