New 0D/1D Physical Approach for Modelling the Gas Dynamics Behavior Inside the Intake System of an Engine

Chalet, David; Yassine, Mohamad; Migaud, Jérôme

doi:10.1007/s11630-018-1027-y

Cited by 2 publications

(1 citation statement)

References 19 publications

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“…Важно, что в этих исследованиях данные моделирования подтверждаются с помощью экспериментов. Можно отметить другие работы, направленные на создание математических моделей для расчета процессов впуска и выпуска в поршневых ДВС [6,7]. В свою очередь, тепломеханическое совершенство систем впуска и выпуска определяет теплонапряженность их деталей и узлов, величину подогрева и испаряемость рабочего тела, величину теплоперепада, которой может сработать в турбине турбокомпрессора в случае двигателя с наддувом.…”

Section: Introductionunclassified

Physical and numerical simulation of the thermal and mechanical characteristics of stationary flows in the gasair paths of piston engines

Plotnikov

Бродов

Жилкин

et al. 2019

«Izvestiya vysshikh uchebnykh zavedenii. PROBLEMY ENERGETIKI»

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Thermomechanical perfection of intake and exhaust systems largely determine the efficiency of the working process of reciprocating engines (ICE). The article presents the results of numerical simulation and experimental study of the heat transfer of gas flows in profiled gas- air systems of ICEs. A description of the numerical simulation technique, experimental setup, configurations of the studied hydraulic systems, measuring base and features of the experiments are given. On the basis of numerical modeling, it has been established that the use of profiled sections with cross sections in the shape of a square or a triangle in exhaust systems of an ICEs leads to a decrease in the heat transfer coefficient by 5-11%. It is shown that the use of similar profiled sections in the intake system of reciprocating engines also leads to a decrease in the heat transfer coefficient to 10 % at low air flow rates (up to 40 m/s) and an increase in the heat transfer coefficient to 7% at high speeds. Experimental studies qualitatively confirm the simulation results.

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Section: Introductionunclassified

Physical and numerical simulation of the thermal and mechanical characteristics of stationary flows in the gasair paths of piston engines

Plotnikov

Бродов

Жилкин

et al. 2019

«Izvestiya vysshikh uchebnykh zavedenii. PROBLEMY ENERGETIKI»

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1D and Map-Based Modeling Approaches for Railway Compression Ignition Engine in NRTC Application

et al. 2022

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Internal combustion engine-driven railway vehicles play an important role in the sector even today, due to the incomplete electrification of railway routes. However, stringent COP26 environmental rules are driving manufacturers and the scientific community to study more complex or alternative propulsion systems. Therefore, the design of new powertrains is becoming more challenging. Affordable, along with robust, development tools are fundamental for their development and optimization. In this framework, numerical simulation can represent an effective instrument to face these requirements. The proposed study assesses the accuracy of different modelling approaches for the same engine. In particular, a detailed 1D model, a simplified 1D model and a map-based model are compared. Although studies on engine simulation are available in the technical literature, the novelty introduced with this work is the assessment of accuracy and computational times of the engine models, considered by performing the new emission standard Non-Road Transient Cycle (NRTC), which is applied to a specific field such as Heavy Duty (HD) Compression Ignition (CI) engines for railway applications. This study provides new and quantitative results rarely available in the specific literature. The results show that the simplest model, despite its lower accuracy, maintains good predictive results in terms of cumulative fuel consumption and cumulative nitric oxide (NOx) emissions over the cycle considered. In particular, the difference in terms of fuel consumption for the map-based model is within 5% compared with the more detailed models. Moreover, the computational effort required by the simplest model is three orders of magnitude lower compared with the more detailed model. Therefore, as the simulation run-time is the priority, the simplest modeling approach is suitable for the evaluation of the global performance, in view of a more complex systems simulation, such as a hybrid powertrain.

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New 0D/1D Physical Approach for Modelling the Gas Dynamics Behavior Inside the Intake System of an Engine

Cited by 2 publications

References 19 publications

Physical and numerical simulation of the thermal and mechanical characteristics of stationary flows in the gasair paths of piston engines

Physical and numerical simulation of the thermal and mechanical characteristics of stationary flows in the gasair paths of piston engines

1D and Map-Based Modeling Approaches for Railway Compression Ignition Engine in NRTC Application

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