Sökning: "CFD Star-CCM"

Visar resultat 36 - 40 av 47 uppsatser innehållade orden CFD Star-CCM.

  1. 36. Improving Aerodynamic Performance of a Truck: a Numerical Based Analysis

    M1-uppsats, KTH/Mekanik

    Författare :Johan Malmberg; [2015]
    Nyckelord :;

    Sammanfattning : With a change in EU-legislation regarding the dimensions of heavy trucks [1] coming up, specifically allowing aerodynamic devices fitted to the back of trailers, the transportation industry is set to largely decrease its environmental impact in the near future. These aerodynamic devices have been researched for quite some time [2] but have not yet gained widespread market acceptance, partly because of the transportation industry’s complex owner structures and partly because of size regulations of the past. LÄS MER

  3. 37. Assessment of Volume of fluid Method for high-pressure gasinjection into liquid

    Master-uppsats, KTH/Mekanik

    Författare :Yoko Tanabe; [2015]
    Nyckelord :;

    Sammanfattning : Carbonated sparkling water has been widely used from ancient age [1]. The original ideacame from natural sparkling water and people believed that taking baths at carbonatedhot springs was good for health and healed their sicknesses. This fact led people to startthinking that sparkling water could have more effective uses. LÄS MER

  4. 38. Comparison between three different CFD software and numerical simulation of an ambulance hall

    Master-uppsats, KTH/Energiteknik

    Författare :Ning Li; [2015]
    Nyckelord :indoor environment; CFD;

    Sammanfattning : Ambulance hall is a significant station during emergency treatment. Patients need to be transferred from ambulance cars to the hospital’s building in the hall. Eligible performance of ventilation system to supply satisfied thermal comfort and healthy indoor air quality is very important. LÄS MER

  5. 39. Effect of Axial Gap Distance on Transonic Compressor Performance

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :Joseph Sadek; [2015]
    Nyckelord :Axial Gap Distance; Transonic Compressors; Aerodynamic Performance; CFD; Harmonic Balance; inter-row gap;

    Sammanfattning : The modern trend of gas turbines design is towards lighter, highly efficient,and more compact engines. Such situation imposes on engineers to continuouslysearch for improved and optimum designs. The thesis presented aims at researching possible performance improvements regarding axial gapdistance in transonic compressors. LÄS MER

  7. 40. CFD ANALYSIS OF PRESSURE WAVES AND LOADS ON NON-TIGHT TRAINS PASSING TUNNELS

    Master-uppsats, KTH/Mekanik

    Författare :Giovanni Forasassi; [2015]
    Nyckelord :;

    Sammanfattning : Computing the loads for a train passing a tunnel requires to predict both the external and the internal pressure variations in time, both of which are strong and quick for a non-pressure tight train. The key achievement of this work has been the development of 3D CFD Star-CCM+ overset mesh simulations capable of simulating the single train tunnel entry and tunnel passage as well as the two trains crossing inside the tunnel. LÄS MER