The Fast Simulation of Highly Flexible Flight Dynamics
Lead Research Organisation:
University of Glasgow
Department Name: School of Engineering
Abstract
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Organisations
People |
ORCID iD |
| Kiran Kumar Ramesh (Primary Supervisor) | |
| Hugh Bird (Student) |
Publications
Studentship Projects
| Project Reference | Relationship | Related To | Start | End | Student Name |
|---|---|---|---|---|---|
| EP/N509668/1 | 30/09/2016 | 29/09/2021 | |||
| 1944318 | Studentship | EP/N509668/1 | 30/09/2017 | 30/03/2021 | Hugh Bird |
| Description | Simplified aerodynamic models neglect certain aspects of physics. Using these models, solutions can be obtained far more quickly than would otherwise be possible. The problem however, is knowing how accurate this more easily obtained solution is. The accuracy of unsteady lifting-line theory, and how different wake simplifications affect the accuracy of these theories has been examined. Additionally, new theories have been constructed that overcome limitations of earlier theories. Most past unsteady lifting-line theories are in the frequency domain, but many practical problems are in the time domain. New theories that use the teachings of frequency domain theories have been constructed in the time domain. |
| Exploitation Route | For purely aerodynamics, some previous authors have taken an ad-hoc approach to constructing unsteady lifting-line theories. Portions of this works should help guide them in the construction of their methods and understand the limitations of other methods. Models created can also be applied to practical problems. These include the aerodynamics and structural dynamics of aircraft, wind and tidal turbines, flapping energy harvesting devices and flapping micro air vehicles. |
| Sectors | Aerospace Defence and Marine Energy Security and Diplomacy Transport |
| Title | CVortex |
| Description | An accelerated vortex particle code. CVortex takes advantage of multi-core CPUs and GPUs to compute the interaction between regularised vortex particles quickly. The regularised vortex particle method allows unsteady aerodynamic problems to be studied at a very low computational cost in comparison to conventional finite volume codes. Additionally, it is mesh free(requiring less pre-processing) and is easier to use. The library is cross platform (with pre-compiled binaries available for Windows and Linux on AMD64), is compatible with multiple GPU vendors (Intel, AMD, Nvidia tested) and is designed to be easy to use. This is in comparison to competing libraries which are typically Linux only and require computer hardware from specific vendors. The library is written in C. A wrapper for the Julia programming language was also written (https://github.com/hjabird/CVortex.jl), making its installation as easy as "add CVortex". |
| Type Of Technology | Software |
| Year Produced | 2019 |
| Open Source License? | Yes |
| Impact | The library is intended to be used primarily via the CVortex.jl wrapper that is available in the Julia language's default repository. Consequently, the extent to which the library is used cannot be tracked. Within my own work, the library has either increased productivity by being up to x1000 faster than the original implementation or has allowed larger problems (~x100) to be studied within the same timeframe without impacting the portability of the code using it. |
| URL | https://github.com/hjabird/cvortex |