Numerical Investigation of Multi-Component Podded Propulsor Performance in Straight Flow
| Autor: | Antonio Sanchez-Caja, Timo Rauti, Karl Ramstedt, Tuomas Sipilä |
|---|---|
| Přispěvatelé: | Sánchez-Caja, Antonio |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Sánchez-Caja, A, Rauti, T, Ramstedt, K & Sipilä, T 2017, Numerical Investigation of Multi-Component Podded Propulsor Performance in Straight Flow . in A Sánchez-Caja (ed.), Proceedings of the Fifth International Symposium on Marine Propulsors : SMP '17 ., WA3-2, VTT Technical Research Centre of Finland, International Symposiums on Marine Propulsors, vol. 5, 5th International Symposium on Marine Propulsors, SMP'17, Espoo, Finland, 12/06/17 . < http://www.marinepropulsors.com/proceedings/2017/WA3-2.pdf > VTT Technical Research Centre of Finland-PURE |
| Popis: | The notion of high efficiency related to a low loaded propeller has been sometimes misunderstood in the context of multi-component tandem or CRP units. Individual low loaded propellers working as a part of a multi-stage propulsion unit do not lead necessarily to high efficiency since high efficiency is more related to what could be called low “propulsive” loading, than to what is usually referred to as low “propeller” loading. In this paper, multi-component propulsors are numerically investigated in straight flow from the standpoint of efficiency and propeller interaction. Potential flow tools are used to illustrate the ability of different multicomponent configurations to improve efficiency. RANS methods coupled to actuator disk models are used first to validate average loads on a CRP unit and then to analyze effective wakes in a podded propulsor with three co-axial propeller components. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|