The poly(lactic acid)(PLA)/aliphatic poly(carbonate)(PPC)/polyethylene glycol-polyhedral oligomeric silsesquioxane (PEG-POSS) composites were prepared by reactive melting extrusion. effect of various components on the mechanical, thermal, rheological, and hydrophilic properties was systematically studied means characterization methods. results showed that, with increase PPC content, toughness improves significantly, while strength decreases. Reactive extrusion adding PEG-POSS could enhance...

In order to develop the liquid cooling plate of battery pack with high efficiency, low resistance and uniform temperature, a special-shaped pin fin was proposed, influence mechanism its structure arrangement parameters on flow heat transfer performance in channel is investigated numerically, temperature uniformity coefficient used quantify distribution verify comprehensive dissipation performance. The results show that disturbs increases velocity near upper surface channel, which beneficial...

In order to improve the limitation of steady-state automobile aerodynamic lift characteristics in finite volume method, Lattice Boltzmann Method (LBM) was conducted on transient simulation lift. This proposed method utilized adaptive wake refinement feature obtain a series regular fluid particles for macroscopic and combined large eddy (LES) with wale-viscosity model study this numerical investigation, using international standard MIRA model, temporal spatial rear velocity field vorticity...

In simulation of the heat transfer between radiator and air flow field, adoption full-size model containing its core body structure with small feature sizes would require huge storage space not be economical. view this question, based on coupling multi-scale models simulations, a calculation method performance is proposed in paper reliability which verified by an experiment test. Subsequently, influence radiators’ thermal layout parts front radiators analyzed. Lastly, modified to enhance...

In order to achieve accurate thermal prediction of lithium battery module at high charge-discharge rates, experimental and numerical simulations the temperature rise cells lower rates 1C, 2C, 3C have been conducted firstly verify accuracy NTGK model (Newman, Tiedemann, Gu, Kim, NTGK) low rates. The results a 5C rate has matched prove model, maximum difference GPR-NTGK (Gaussian process regression, GPR) reduced by 4.86K compared with original model. Further experiments for simulation are in...

In order to achieve accurate thermal prediction of lithium battery module at high charge and discharge rates, experimental numerical simulations the charge-discharge temperature rise cells lower rates 1C, 2C, 3C have been conducted firstly verify accuracy NTGK model (Newman, Tiedemann, Gu, Kim, NTGK) low rates. The results a 5C rate has matched prove model, maximum difference GPR-NTGK (Gaussian process regression, GPR) reduced by 4.86K compared with original model. Further experiments for...

The collection of fugitive fumes from aluminum electrolysis is a major technical issue that has hampered the green production for long time. process also complex flow containing multifield coupling. There are various structural parameters affect efficiency in this procedure. In paper, coupling simulation method based on computational fluid dynamics discrete phase model was developed. To achieve best efficiency, multifactor interaction effect analysis executed with length...

For a long time, the impact of aerodynamic lift on stability high-speed vehicles has been studied only from perspective force, and there is lack quantitative assessment vehicle body. In this paper, model multi-body dynamics was constructed by using an in-use as research object. Accuracy verified computational fluid (CFD) compared with HD-2 (the second wind tunnel Hunan University) test data. The under condition driving analysed two aspects body acceleration lateral displacement. results show...

The hydraulic pile driver fuselage rapid precision leveling is key factor to ensure the working efficiency and quality. To meet both aims of fast raise-fall high-precision during working, based on study movement, this paper carried out control method automotive designed a parallel controller PLC electro-hydraulic valve proportional directional valve.

In order to develop the liquid cooling plate of battery pack with high efficiency, low resistance and uniform temperature, a special-shaped pin fin was proposed, influence mechanism its structure arrangement parameters on flow heat transfer performance in channel is investigated numerically, temperature uniformity coefficient used quantify distribution verify comprehensive dissipation performance. The results show that disturbs increases velocity near upper surface channel, which beneficial...