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This presentation will give a brief overview of the multiphase models in STAR-CCM+, from Eulerian-Eulerian to Lagrangian-Eulerian, including DEM.
The location of the air intake of a bus creates challenges from a soiling perspective. The proximity to the rear wheels pulls up dirt from the road. Compared to a commercial truck, with the fan placement in the front of the vehicle the air intake of a bus can’t rely on ram air pressure to get the sufficient cooling air mass flow. The fan must always operate on high effect when the bus is driving and thus pulls in dirt. An understanding of the flow of the dirt in the engine is necessary for a possibility to prevent it from soiling the engine compartment. As physical evaluation of the dirt flow...
This thesis investigates the application of jet streams to generate a surface lm ow for the cooling of solid non-salient pole rotors of electrical machines. It should be taken advantage of the Coand -eect to generate the lm ow on the surface of the rotor. Flow simulations are carried out to examine the ow in detail. Variation of inuence parameters with assistance of axisymmetric models results that there is no signicant inuence of the rotor speed. When raising the mass ow rate of the jet stream an enhancement of the heat transfer coecient can be observed. Besides that, a reducing of the inlet...
Improving heat transfer in helical tube heat exchanger is studied, experimented and analyzed by many research peoples, it’s because the fluid passing through the helical tube offers certain better advantages then straight tubes. in this paper we are concentrating on improving shell side heat transfer coefficients and net heat transfer in given experimented model, without much pressure loss is our main aim of project. So we are referring some journals for correlations of AL2O3 nanofluids properties and designing the model in ANSYS WORKBENCH 15 then it is meshed and solved in STARCCM+ solver...

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