Service interruption on Monday 11 July from 12:30 to 13:00: all the sites of the CCSD (HAL, EpiSciences, SciencesConf, AureHAL) will be inaccessible (network hardware connection).
Skip to Main content Skip to Navigation
Journal articles

Advanced numerical methods for uncertainty reduction when predicting heat exchanger dynamic stability limits. Review and perspectives.

Abstract : This article proposes a review of recent and current developments in the modeling and advanced numerical methods used to simulate large-size systems involving multi-physics in the field of mechanics. It addresses the complex issue of stability analysis of dynamical systems submitted to external turbulent flows and aims to establish accurate stability maps applicable to heat exchanger design. The purpose is to provide dimensionless stability limit modeling that is suitable for a variety of configurations and is as accurate as possible in spite of the large scale of the systems to be considered. The challenge lies in predicting local effects that may impact global systems. A combination of several strategies that are suited concurrently to multi-physics, multi-scale and large-size system computation is therefore required. Based on empirical concepts, the heuristic models currently used in the framework of standard stability analysis suffer from a lack of predictive capabilities. On the other hand, numerical approaches based on fully-coupled fluid–solid dynamics system computation remain expensive due to the multi-physics patterns of physics and the large number of degrees of freedom involved. In this context, since experimentation cannot be achieved and numerical simulation is unavoidable but prohibitive, a hybrid strategy is proposed in order to take advantage of both numerical local solutions and empirical global solutions.
Document type :
Journal articles
Complete list of metadata

Cited literature [98 references]  Display  Hide  Download
Contributor : Open Archive Toulouse Archive Ouverte (OATAO) Connect in order to contact the contributor
Submitted on : Wednesday, June 5, 2019 - 10:51:00 AM
Last modification on : Monday, July 4, 2022 - 8:45:06 AM


Files produced by the author(s)



Elisabeth Longatte, Franck Baj, yannick Hoarau, Marianna Braza, Daniel Ruiz, et al.. Advanced numerical methods for uncertainty reduction when predicting heat exchanger dynamic stability limits. Review and perspectives.. Nuclear Engineering and Design, Elsevier, 2013, 258, pp.164-175. ⟨10.1016/j.nucengdes.2012.12.003⟩. ⟨hal-02147964⟩



Record views


Files downloads