You might also like

Availability alert

More about Computational fluid dynamics on wildly heterogeneous systems

• Book details
• Synopsis
• Trending among others

You get 99 loyalty points

Book synopsis

In the last decade, high-order methods have gained increasedattention. These combine the convergence properties ofspectral methods with the geo-metrical flexibility of low-ordermethods. With restrictive time steps, implicit treatment ofdiffusion and pressure terms is mandatory. Therefore, efficientsolution of elliptic equations is of central importance for fastflow solvers. As the operators scale with O(p · nDOF), where nDOFis the number of degrees of freedom and p the polynomialdegree, the runtime of the best available multigrid algorithmsscales with O(p · nDOF) as well. This super-linear scalinglimits the applicability of high-order methods to mid-rangepolynomial orders, constituting a major road block towardsfaster flow solvers.This work reduces the super-linear scaling of elliptic solvers toa linear one. The devised methods are combined into a flowsolver, which preserves this linear scaling. Furthermore, amultigrid method reduces the cost of implicit treatment of thepressure to the one for explicit treatment of the convectionterms. Lastly, benchmarks confirm that the solver outperformsestablished high-order codes.

Book details

Book category Books in English Technology, engineering, agriculture

• Full title: Computational fluid dynamics on wildly heterogeneous systems
• Author: Immo Huismann
• Language: English
• Binding: Paperback
• Number of pages: 172
• EAN: 9783959084246
• ID: 38553660
• Publisher: TUDpress
• Dimensions: 210 × 170 mm
• Published: 2021

Trending among others

---

---

---