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Turbocharger Aero-thermal Design Optimisation under Realistic Engine Conditions for Low Carbon Vehicles

低碳汽车实际发动机工况下涡轮增压器气动热设计优化

基本信息

批准号：
EP/M001156/1
负责人：
APOSTOLOS PESYRIDIS
金额：
$ 12.59万
依托单位：
Brunel University London
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2014
资助国家：
英国
起止时间：
2014 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FM001156%2F1
关键词：
Turbocharger Aero thermal Design Optimisation

项目摘要

Air charging systems are widely used in both passenger and commercial vehicle applications to increase power density and improve fuel economy leading to significant emissions reductions. The development of turbochargers to the current state-of-the-art has been of primary importance in enabling the automotive industry to cope with the ever stringent emissions regulations and the scope for improvement remains significant. Although investment in turbocharger technology has made it possible to overcome issues related to reliability and cost, research is much needed in the area of design, testing methodologies and model development. Computational codes are used by engine manufacturers to predict the performance and size of turbomachinery components; prediction accuracy is crucial in this process. The physical phenomena of primary interest in recent turbocharger research include those related to turbocharger aerodynamics and heat transfer. Specifically, the effects of on-engine pulsating exhaust gas flow, turbocharger heat transfer and wide turbine mapping will be investigated. The aims of this project include the characterisation of the interaction of these important but unaccounted for (by the preliminary turbocharger design process) turbocharger aero-thermal flow phenomena in a realistic (on-engine) environment and the delivery of design tools to better inform and therefore accelerate the preliminary design cycle of turbochargers by incorporating design methodologies that integrate the above effects.

空气充电系统广泛应用于乘用车和商用车中，以增加功率密度和改善燃油经济性，从而显著减少排放。涡轮增压器的发展达到目前最先进的水平，对于使汽车行业能够应对日益严格的排放法规至关重要，而且改进的空间仍然很大。虽然对涡轮增压技术的投资使其有可能克服与可靠性和成本有关的问题，但在设计、测试方法和模型开发领域仍亟需研究。发动机制造商使用计算代码来预测叶轮机械部件的性能和尺寸；预测精度在这一过程中至关重要。目前涡轮增压器研究的主要物理现象包括与涡轮增压器空气动力学和传热学有关的物理现象。具体地说，将研究发动机脉动废气流动、涡轮增压换热和宽涡轮映射的影响。该项目的目标包括(在涡轮增压器初步设计过程中)描述这些重要但无法解释的涡轮增压器气动热流现象在现实(发动机上)环境中的相互作用，以及交付设计工具，以便更好地提供信息，从而通过整合上述影响的设计方法来加快涡轮增压器的初步设计周期。