Sökning: "multiphase flow"
Visar resultat 16 - 20 av 34 uppsatser innehållade orden multiphase flow.
16. CFD and Experimental Study of Refuelling and Venting a Fuel System
Master-uppsats, Linköpings universitet/Mekanisk värmeteori och strömningsläraSammanfattning : In 1999, California Air Resources Board (CARB) implemented a regulation that required all gasoline cars sold in California be fitted with an Onboard Refueling Vapor Recovery System (ORVR). The ORVR system is designed to prevent Volatile Organic Compounds (VOCs) from escaping into the atmosphere during refuelling by storing the gas vapours in a carbon canister. LÄS MER
17. CFD Simulation of Fluid Flow During Laser Metal Wire Deposition using OpenFOAM : 3D printing
Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematikSammanfattning : The focus of this work was to simulate the fluid flow within a melt pool geometry, during an additive manufacturing process, implementing the CFD software OpenFOAM version 1806. Two separate models were created and run during this work, the first using a temperature mapping from a finite element (FE) model and the second being a free-standing model with Gaussian distributed laser beam striking down on the top surface. LÄS MER
18. Computational and experimental study of fuel leakage through a ventilation valve during various driving conditions
Master-uppsats, Linköpings universitet/Mekanisk värmeteori och strömningsläraSammanfattning : Fuel leakage through a fill limit vent valve (FLVV) inside a fuel tank is an important factor to consider during the design of a new tank. The performance of the carbon canister which absorbs the hydrocarbon can be compromised if fuel manages to escape through the valve, so called Liquid Carry Over (LCO) and thus not fulfilling the fuel emission requirements. LÄS MER
19. CFD and Experimental Study of Refuelling and Venting a Fuel System
Master-uppsats, Luleå tekniska universitet/RymdteknikSammanfattning : In 1999, California Air Resources Board (CARB) implemented a regulation that required all gasoline cars sold in California be fitted with an Onboard Refueling Vapor Recovery System (ORVR). The ORVR system is designed to prevent Volatile Organic Compounds (VOCs) from escaping into the atmosphere during refuelling by storing the gas vapours in a carbon canister. LÄS MER
20. CFD-simulations of urea-waterspray in an after-treatment systemusing Star-CCM+
Master-uppsats, KTH/MekanikSammanfattning : The legislation has forced the vehicle industry to reduce tail-end emissions. The air pollutant nitrogen oxide (NOX) has been shown to have a negative impact on human health and the environment. One of the key technologies to reduce the levels of NOX emitted from a vehicle is by implementing an after-treatment system. LÄS MER
