Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5011892 | Computers & Fluids | 2017 | 59 Pages |
Abstract
Fluid-thermal interaction plays an important role in the design and development of hypersonic vehicles. Among the different ways to couple the flow field with the material thermal response, the loosely coupled quasi-static method is widely used. In this paper, deviation formulas based on one-dimensional model are derived for uncoupled method and loosely coupled quasi-static method to estimate the structural temperature deviations at the stagnation point in different forward time steps. To verify the formulas, fluid-thermal coupling numerical simulations are conducted for 2-D and 3-D hypersonic fluid-thermal interaction problems. The results show that the temperature deviation formulas agree quite well with the deviations from numerical simulation. The derived deviation formulas can serve as some guidance for selecting an appropriate forward time step for the loosely coupled quasi-static method.
Keywords
Related Topics
Physical Sciences and Engineering
Engineering
Computational Mechanics
Authors
Guo Shaolong, Feng Yongliang, Tao Wen-Quan,