The vehicle industry is always in search of breakthrough energy-saving and emission-reduction technologies.In recent years,vehicle intelligence has progressed considerably,and researchers are currently trying to take ...The vehicle industry is always in search of breakthrough energy-saving and emission-reduction technologies.In recent years,vehicle intelligence has progressed considerably,and researchers are currently trying to take advantage of these developments.Here we consider the case of many vehicles forming a queue,i.e.,vehicles traveling at a predetermined speed and distance apart.While the majority of existing studies on this subject have focused on the influence of the longitudinal vehicle spacing,vehicle speed,and the number of vehicles on aerodynamic drag and fuel economy,this study considers the lateral offset distance of the vehicle queue.The group fuel consumption savings rate is calculated and analyzed.As also demonstrated by experimental results,some aerodynamic benefits exist.Moreover,the fuel consumption saving rate of the vehicle queue decreases as the lateral offset distance increases.展开更多
Car styling technique based on a new theoretical model of automotiveaerodynamics is introduced, which is proved to be feasible and effective by wind tunnel tests.Development of a multi-module software system from this...Car styling technique based on a new theoretical model of automotiveaerodynamics is introduced, which is proved to be feasible and effective by wind tunnel tests.Development of a multi-module software system from this technique, including modules of knowledgeprocessing, referential styling and ANN aesthetic evaluation etc, capable of assisting car stylingworks in an intelligent way, is also presented and discussed.展开更多
基金This study was financially supported by the National Natural Science Foundation of China(52072156)the Postdoctoral Foundation of China(2020M682269).
文摘The vehicle industry is always in search of breakthrough energy-saving and emission-reduction technologies.In recent years,vehicle intelligence has progressed considerably,and researchers are currently trying to take advantage of these developments.Here we consider the case of many vehicles forming a queue,i.e.,vehicles traveling at a predetermined speed and distance apart.While the majority of existing studies on this subject have focused on the influence of the longitudinal vehicle spacing,vehicle speed,and the number of vehicles on aerodynamic drag and fuel economy,this study considers the lateral offset distance of the vehicle queue.The group fuel consumption savings rate is calculated and analyzed.As also demonstrated by experimental results,some aerodynamic benefits exist.Moreover,the fuel consumption saving rate of the vehicle queue decreases as the lateral offset distance increases.
基金National Natural Science Foundation of China (No.59775043)Provincial Natural Science Foundation of Guangdong (N.990574).
文摘Car styling technique based on a new theoretical model of automotiveaerodynamics is introduced, which is proved to be feasible and effective by wind tunnel tests.Development of a multi-module software system from this technique, including modules of knowledgeprocessing, referential styling and ANN aesthetic evaluation etc, capable of assisting car stylingworks in an intelligent way, is also presented and discussed.
