An adaptive approach for coupling detailed kinetics with computational fluid dynamics (CFD) has been formulated to permit reactive flow simulations with improved computational efficiency. The approach makes use of a set of reduced mechanisms, each of which has been developed to reproduce the mixture kinetics under well-characterized thermo-chemical conditions. In the present implementation, the...

in this paper, a numerical study is performed to provide the combustion and emission characteristics resulting from fuel-reactivity controlled compression ignition (rcci) combustion mode in a heavy-duty, single-cylinder diesel engine with gasoline and diesel fuels. in rcci strategy in-cylinder fuel blending is used to develop fuel reactivity gradients in the combustion chamber that result in a ...

Une mŽthode mettant en Ïuvre des moyennes conditionnelles est appliquŽe aux modŽlisations de la combustion et de la formation des polluants dans les moteurs ˆ allumage commandŽ avec charge stratifiŽe. Un systme d'Žquations dŽcrit, pendant la combustion, la composition et la tempŽrature locales du gaz encore non bržlŽ. Le modle de flamme cohŽrente (CFM) a ŽtŽ choisi pour simuler la combustion ...

In this paper some results concerning the effect of intake flow modeling obtained by 3D numerical modeling of combustion on flame front shape and its displacement through combustion chamber geometry of s.i .engine consisting of flat head with two ver tical valves and cylindrical bowl were presented. These results obtained with KIVA3V code were compared with results of flame front shape and its ...

The multi-agent path finding (MAPF) problem is defined as follows: Given a graph and a set of agents with unique start and goal vertices, find collision-free paths for all agents from their respective start vertices to their respective goal vertices. Our objective is to minimize the the total arrival time. MAPF has many applications such as video games, traffic control and robotics. Solving the...

Micro-cogeneration with locally produced biogas from waste is a proven technique for supporting the decarbonization process. However, strongly variable composition of can make its use in internal combustion engines quite challenging. Dual-fuel offer advantages over conventional SI and diesel engines, but there are still issues to be addressed, such as low-load thermodynamic efficiency nitrogen ...

Abstract Despite the relevance of crowdfunding as a financing tool for underrepresented entrepreneurs, prior research pays scant attention to funding gap refugee entrepreneurs. Using composite framework that integrates both entrepreneurship and signalling theory, current study investigates how microfinance institutions (MFIs) entrepreneurs can deploy signals pursue entrepreneurial opportunities...