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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Cai, Yun Peng, Xingjie Li, Qing Zhang, Zhizhu Jiang, Zhumin Rui, Guo |
| Copyright Year | 2018 |
| Abstract | The point kinetics is very important to the safety of the reactor operation. However, these equations are stiff and usually solved with very small time step. These equations are solved by Revisionist integral deferred correction (RIDC), which is a parallel time integration method. RIDC is a highly accurate method, and it reduces the error by iteration. Based on C++ and MPI, a four-core fourth-order RIDC is implemented and tested by several cases, such as step, ramp, and sinusoidal reactivity insertion. Compared with other methods, the time step of RIDC in the step reactivity insertion case is smaller, but it’s larger in the case of the sinusoidal reactivity insertion. RIDC can keep high accuracy while the time step is appropriately large. The numerical results also show that the speed-up ratio can achieve 2 when 4 processors are used. |
| Sponsorship | Nuclear Engineering Division |
| File Format | |
| ISBN | 9780791851456 |
| DOI | 10.1115/ICONE26-81205 |
| Volume Number | Volume 3: Nuclear Fuel and Material, Reactor Physics, and Transport Theory |
| Conference Proceedings | 2018 26th International Conference on Nuclear Engineering |
| Language | English |
| Publisher Date | 2018-07-22 |
| Publisher Place | London, England |
| Access Restriction | Subscribed |
| Subject Keyword | Neutrons Errors Safety Computation |
| Content Type | Text |
| Resource Type | Article |
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