Search results for "FD"

Virtauslaskenta traktorien tuotekehityksessä

2016

This work describes the deployment of the current fluid flow simulation software, Star-CCM+, at Valtra Inc. The text also gives a brief introduction to computational fluid dynamics and its role in the product development process for an engineer at the company. Two computational test cases are also described. A simpler case of the simulation of an engine air intake channel flow is shown first. The results show better agreement with the measured values than the outsourced simulation that was used as a reference. The second case is the so called underhood analysis which is a flow simulation of the whole Valtra N-series front end, including fan and heat exchangers. It is a steady state simulati…

The water shuttling hypothesis in Lithops

2011

Contribution to thermal behaviour study of lithium-ion battery for electric and hybrid electric vehicle

2014

The main objectives of this study are to provide the essential information on the thermal behaviour of the battery cells for automotive purpose especially for EVs and HEVs through experimental work in order to develop an effective 3D electro-thermal model for lithium ion battery cells and pack. The experimental study is focusing on the distribution of temperature at various points of the battery cell surface, impact of different constant discharge rates, and also the importance of cooling system on the battery temperature behaviour. This thesis highlights the battery cell temperature under abuse discharge condition and the impact of stacking the battery cells inside the battery pack. Impact…